From 2748b9a10dfc80c8f56e403b8c856192e824ba29 Mon Sep 17 00:00:00 2001 From: reduz Date: Mon, 7 Dec 2020 18:27:38 -0300 Subject: Add support for low-end 3D rendering. -Reduce number of uniform sets from 6 to 4. -Remove features in low end mode, in order to reduce the number of texture units fit to 16. --- .../renderer_rd/renderer_scene_render_forward.cpp | 466 ++-- .../renderer_rd/renderer_scene_render_forward.h | 35 +- .../renderer_rd/renderer_scene_render_rd.cpp | 268 +- .../renderer_rd/renderer_scene_render_rd.h | 4 + servers/rendering/renderer_rd/shader_rd.cpp | 24 + servers/rendering/renderer_rd/shader_rd.h | 5 + servers/rendering/renderer_rd/shaders/SCsub | 2 +- .../renderer_rd/shaders/scene_forward.glsl | 2905 +++++++++++++++++++ .../renderer_rd/shaders/scene_forward_inc.glsl | 332 +++ .../renderer_rd/shaders/scene_high_end.glsl | 2912 -------------------- .../renderer_rd/shaders/scene_high_end_inc.glsl | 321 --- servers/rendering/renderer_scene_render.h | 2 + servers/rendering_server.cpp | 3 + 13 files changed, 3685 insertions(+), 3594 deletions(-) create mode 100644 servers/rendering/renderer_rd/shaders/scene_forward.glsl create mode 100644 servers/rendering/renderer_rd/shaders/scene_forward_inc.glsl delete mode 100644 servers/rendering/renderer_rd/shaders/scene_high_end.glsl delete mode 100644 servers/rendering/renderer_rd/shaders/scene_high_end_inc.glsl diff --git a/servers/rendering/renderer_rd/renderer_scene_render_forward.cpp b/servers/rendering/renderer_rd/renderer_scene_render_forward.cpp index d603d32de8..5412688e3f 100644 --- a/servers/rendering/renderer_rd/renderer_scene_render_forward.cpp +++ b/servers/rendering/renderer_rd/renderer_scene_render_forward.cpp @@ -257,6 +257,9 @@ void RendererSceneRenderForward::ShaderData::set_code(const String &p_code) { RD::RenderPrimitive primitive_rd = uses_point_size ? RD::RENDER_PRIMITIVE_POINTS : primitive_rd_table[j]; for (int k = 0; k < SHADER_VERSION_MAX; k++) { + if (!static_cast(singleton)->shader.scene_shader.is_variant_enabled(k)) { + continue; + } RD::PipelineRasterizationState raster_state; raster_state.cull_mode = cull_mode_rd; raster_state.wireframe = wireframe; @@ -516,11 +519,11 @@ RendererStorageRD::MaterialData *RendererSceneRenderForward::_create_material_fu return material_data; } -RendererSceneRenderForward::RenderBufferDataHighEnd::~RenderBufferDataHighEnd() { +RendererSceneRenderForward::RenderBufferDataForward::~RenderBufferDataForward() { clear(); } -void RendererSceneRenderForward::RenderBufferDataHighEnd::ensure_specular() { +void RendererSceneRenderForward::RenderBufferDataForward::ensure_specular() { if (!specular.is_valid()) { RD::TextureFormat tf; tf.format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT; @@ -574,7 +577,7 @@ void RendererSceneRenderForward::RenderBufferDataHighEnd::ensure_specular() { } } -void RendererSceneRenderForward::RenderBufferDataHighEnd::ensure_gi() { +void RendererSceneRenderForward::RenderBufferDataForward::ensure_gi() { if (!reflection_buffer.is_valid()) { RD::TextureFormat tf; tf.format = RD::DATA_FORMAT_R16G16B16A16_SFLOAT; @@ -587,7 +590,7 @@ void RendererSceneRenderForward::RenderBufferDataHighEnd::ensure_gi() { } } -void RendererSceneRenderForward::RenderBufferDataHighEnd::ensure_giprobe() { +void RendererSceneRenderForward::RenderBufferDataForward::ensure_giprobe() { if (!giprobe_buffer.is_valid()) { RD::TextureFormat tf; tf.format = RD::DATA_FORMAT_R8G8_UINT; @@ -623,7 +626,7 @@ void RendererSceneRenderForward::RenderBufferDataHighEnd::ensure_giprobe() { } } -void RendererSceneRenderForward::RenderBufferDataHighEnd::clear() { +void RendererSceneRenderForward::RenderBufferDataForward::clear() { if (ambient_buffer != RID() && ambient_buffer != color) { RD::get_singleton()->free(ambient_buffer); ambient_buffer = RID(); @@ -687,7 +690,7 @@ void RendererSceneRenderForward::RenderBufferDataHighEnd::clear() { } } -void RendererSceneRenderForward::RenderBufferDataHighEnd::configure(RID p_color_buffer, RID p_depth_buffer, int p_width, int p_height, RS::ViewportMSAA p_msaa) { +void RendererSceneRenderForward::RenderBufferDataForward::configure(RID p_color_buffer, RID p_depth_buffer, int p_width, int p_height, RS::ViewportMSAA p_msaa) { clear(); msaa = p_msaa; @@ -754,7 +757,7 @@ void RendererSceneRenderForward::RenderBufferDataHighEnd::configure(RID p_color_ } } -void RendererSceneRenderForward::_allocate_normal_roughness_texture(RenderBufferDataHighEnd *rb) { +void RendererSceneRenderForward::_allocate_normal_roughness_texture(RenderBufferDataForward *rb) { if (rb->normal_roughness_buffer.is_valid()) { return; } @@ -793,7 +796,7 @@ void RendererSceneRenderForward::_allocate_normal_roughness_texture(RenderBuffer } RendererSceneRenderRD::RenderBufferData *RendererSceneRenderForward::_create_render_buffer_data() { - return memnew(RenderBufferDataHighEnd); + return memnew(RenderBufferDataForward); } bool RendererSceneRenderForward::free(RID p_rid) { @@ -911,7 +914,7 @@ void RendererSceneRenderForward::_fill_instances(RenderList::Element **p_element id.flags |= INSTANCE_DATA_FLAG_USE_GI_BUFFERS; } - if (!e->instance->gi_probe_instances.empty()) { + if (!low_end && !e->instance->gi_probe_instances.empty()) { uint32_t written = 0; for (int j = 0; j < e->instance->gi_probe_instances.size(); j++) { RID probe = e->instance->gi_probe_instances[j]; @@ -950,23 +953,13 @@ void RendererSceneRenderForward::_fill_instances(RenderList::Element **p_element /// RENDERING /// -void RendererSceneRenderForward::_render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderList::Element **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_radiance_uniform_set, RID p_render_buffers_uniform_set, bool p_force_wireframe, const Vector2 &p_uv_offset) { +void RendererSceneRenderForward::_render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderList::Element **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_render_pass_uniform_set, bool p_force_wireframe, const Vector2 &p_uv_offset) { RD::DrawListID draw_list = p_draw_list; RD::FramebufferFormatID framebuffer_format = p_framebuffer_Format; //global scope bindings RD::get_singleton()->draw_list_bind_uniform_set(draw_list, render_base_uniform_set, SCENE_UNIFORM_SET); - if (p_radiance_uniform_set.is_valid()) { - RD::get_singleton()->draw_list_bind_uniform_set(draw_list, p_radiance_uniform_set, RADIANCE_UNIFORM_SET); - } else { - RD::get_singleton()->draw_list_bind_uniform_set(draw_list, default_radiance_uniform_set, RADIANCE_UNIFORM_SET); - } - RD::get_singleton()->draw_list_bind_uniform_set(draw_list, view_dependant_uniform_set, VIEW_DEPENDANT_UNIFORM_SET); - if (p_render_buffers_uniform_set.is_valid()) { - RD::get_singleton()->draw_list_bind_uniform_set(draw_list, p_render_buffers_uniform_set, RENDER_BUFFERS_UNIFORM_SET); - } else { - RD::get_singleton()->draw_list_bind_uniform_set(draw_list, default_render_buffers_uniform_set, RENDER_BUFFERS_UNIFORM_SET); - } + RD::get_singleton()->draw_list_bind_uniform_set(draw_list, p_render_pass_uniform_set, RENDER_PASS_UNIFORM_SET); RD::get_singleton()->draw_list_bind_uniform_set(draw_list, default_vec4_xform_uniform_set, TRANSFORMS_UNIFORM_SET); MaterialData *prev_material = nullptr; @@ -1214,7 +1207,7 @@ void RendererSceneRenderForward::_setup_environment(RID p_environment, RID p_ren scene_state.ubo.fog_enabled = false; if (p_render_buffers.is_valid()) { - RenderBufferDataHighEnd *render_buffers = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); + RenderBufferDataForward *render_buffers = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); if (render_buffers->msaa != RS::VIEWPORT_MSAA_DISABLED) { scene_state.ubo.gi_upscale_for_msaa = true; } @@ -1639,9 +1632,9 @@ void RendererSceneRenderForward::_setup_lightmaps(InstanceBase **p_lightmap_cull } void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, int p_directional_light_count, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count, InstanceBase **p_lightmap_cull_result, int p_lightmap_cull_count, RID p_environment, RID p_camera_effects, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass, const Color &p_default_bg_color) { - RenderBufferDataHighEnd *render_buffer = nullptr; + RenderBufferDataForward *render_buffer = nullptr; if (p_render_buffer.is_valid()) { - render_buffer = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffer); + render_buffer = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffer); } //first of all, make a new render pass @@ -1686,7 +1679,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf opaque_framebuffer = render_buffer->color_fb; - if (p_gi_probe_cull_count > 0) { + if (!low_end && p_gi_probe_cull_count > 0) { using_giprobe = true; render_buffer->ensure_gi(); } @@ -1761,7 +1754,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf render_list.clear(); _fill_render_list(p_cull_result, p_cull_count, PASS_MODE_COLOR, using_sdfgi); - bool using_sss = render_buffer && scene_state.used_sss && sub_surface_scattering_get_quality() != RS::SUB_SURFACE_SCATTERING_QUALITY_DISABLED; + bool using_sss = !low_end && render_buffer && scene_state.used_sss && sub_surface_scattering_get_quality() != RS::SUB_SURFACE_SCATTERING_QUALITY_DISABLED; if (using_sss) { using_separate_specular = true; @@ -1769,7 +1762,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf using_separate_specular = true; opaque_specular_framebuffer = render_buffer->color_specular_fb; } - RID radiance_uniform_set; + RID radiance_texture; bool draw_sky = false; bool draw_sky_fog_only = false; @@ -1831,7 +1824,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf RID sky = environment_get_sky(p_environment); if (sky.is_valid()) { _update_sky(p_environment, projection, p_cam_transform); - radiance_uniform_set = sky_get_radiance_uniform_set_rd(sky, default_shader_rd, RADIANCE_UNIFORM_SET); + radiance_texture = sky_get_radiance_texture_rd(sky); } else { // do not try to draw sky if invalid draw_sky = false; @@ -1841,7 +1834,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf clear_color = p_default_bg_color; } - _setup_view_dependant_uniform_set(p_shadow_atlas, p_reflection_atlas, p_gi_probe_cull_result, p_gi_probe_cull_count); + RID rp_uniform_set = _setup_render_pass_uniform_set(p_render_buffer, radiance_texture, p_shadow_atlas, p_reflection_atlas, p_gi_probe_cull_result, p_gi_probe_cull_count); render_list.sort_by_key(false); @@ -1850,8 +1843,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf bool debug_giprobes = get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_GI_PROBE_ALBEDO || get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_GI_PROBE_LIGHTING || get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_GI_PROBE_EMISSION; bool debug_sdfgi_probes = get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_SDFGI_PROBES; - bool depth_pre_pass = depth_framebuffer.is_valid(); - RID render_buffers_uniform_set; + bool depth_pre_pass = !low_end && depth_framebuffer.is_valid(); bool using_ssao = depth_pre_pass && p_render_buffer.is_valid() && p_environment.is_valid() && environment_is_ssao_enabled(p_environment); bool continue_depth = false; @@ -1860,7 +1852,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf bool finish_depth = using_ssao || using_sdfgi || using_giprobe; RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(depth_framebuffer, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_CLEAR, finish_depth ? RD::FINAL_ACTION_READ : RD::FINAL_ACTION_CONTINUE, depth_pass_clear); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(depth_framebuffer), render_list.elements, render_list.element_count, false, depth_pass_mode, render_buffer == nullptr, radiance_uniform_set, RID(), get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_WIREFRAME); + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(depth_framebuffer), render_list.elements, render_list.element_count, false, depth_pass_mode, render_buffer == nullptr, rp_uniform_set, get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_WIREFRAME); RD::get_singleton()->draw_list_end(); if (render_buffer && render_buffer->msaa != RS::VIEWPORT_MSAA_DISABLED) { @@ -1884,12 +1876,6 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf _process_gi(p_render_buffer, render_buffer->normal_roughness_buffer, render_buffer->ambient_buffer, render_buffer->reflection_buffer, render_buffer->giprobe_buffer, p_environment, p_cam_projection, p_cam_transform, p_gi_probe_cull_result, p_gi_probe_cull_count); } - if (p_render_buffer.is_valid()) { - //update the render buffers uniform set in case it changed - _update_render_buffers_uniform_set(p_render_buffer); - render_buffers_uniform_set = render_buffer->uniform_set; - } - _setup_environment(p_environment, p_render_buffer, p_cam_projection, p_cam_transform, p_reflection_probe, p_reflection_probe.is_valid(), screen_pixel_size, p_shadow_atlas, !p_reflection_probe.is_valid(), p_default_bg_color, p_cam_projection.get_z_near(), p_cam_projection.get_z_far(), p_render_buffer.is_valid()); RENDER_TIMESTAMP("Render Opaque Pass"); @@ -1914,7 +1900,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf RID framebuffer = using_separate_specular ? opaque_specular_framebuffer : opaque_framebuffer; RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(framebuffer, keep_color ? RD::INITIAL_ACTION_KEEP : RD::INITIAL_ACTION_CLEAR, will_continue_color ? RD::FINAL_ACTION_CONTINUE : RD::FINAL_ACTION_READ, depth_pre_pass ? (continue_depth ? RD::INITIAL_ACTION_KEEP : RD::INITIAL_ACTION_CONTINUE) : RD::INITIAL_ACTION_CLEAR, will_continue_depth ? RD::FINAL_ACTION_CONTINUE : RD::FINAL_ACTION_READ, c, 1.0, 0); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(framebuffer), render_list.elements, render_list.element_count, false, using_separate_specular ? PASS_MODE_COLOR_SPECULAR : PASS_MODE_COLOR, render_buffer == nullptr, radiance_uniform_set, render_buffers_uniform_set, get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_WIREFRAME); + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(framebuffer), render_list.elements, render_list.element_count, false, using_separate_specular ? PASS_MODE_COLOR_SPECULAR : PASS_MODE_COLOR, render_buffer == nullptr, rp_uniform_set, get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_WIREFRAME); RD::get_singleton()->draw_list_end(); if (will_continue_color && using_separate_specular) { @@ -2002,7 +1988,7 @@ void RendererSceneRenderForward::_render_scene(RID p_render_buffer, const Transf { RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(alpha_framebuffer, can_continue_color ? RD::INITIAL_ACTION_CONTINUE : RD::INITIAL_ACTION_KEEP, RD::FINAL_ACTION_READ, can_continue_depth ? RD::INITIAL_ACTION_CONTINUE : RD::INITIAL_ACTION_KEEP, RD::FINAL_ACTION_READ); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(alpha_framebuffer), &render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, false, PASS_MODE_COLOR, render_buffer == nullptr, radiance_uniform_set, render_buffers_uniform_set, get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_WIREFRAME); + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(alpha_framebuffer), &render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, false, PASS_MODE_COLOR, render_buffer == nullptr, rp_uniform_set, get_debug_draw_mode() == RS::VIEWPORT_DEBUG_DRAW_WIREFRAME); RD::get_singleton()->draw_list_end(); } @@ -2028,7 +2014,7 @@ void RendererSceneRenderForward::_render_shadow(RID p_framebuffer, InstanceBase _fill_render_list(p_cull_result, p_cull_count, pass_mode); - _setup_view_dependant_uniform_set(RID(), RID(), nullptr, 0); + RID rp_uniform_set = _setup_render_pass_uniform_set(RID(), RID(), RID(), RID(), nullptr, 0); RENDER_TIMESTAMP("Render Shadow"); @@ -2039,7 +2025,7 @@ void RendererSceneRenderForward::_render_shadow(RID p_framebuffer, InstanceBase { //regular forward for now RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(p_framebuffer, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, p_use_dp_flip, pass_mode, true, RID(), RID()); + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, p_use_dp_flip, pass_mode, true, rp_uniform_set); RD::get_singleton()->draw_list_end(); } } @@ -2061,7 +2047,7 @@ void RendererSceneRenderForward::_render_particle_collider_heightfield(RID p_fb, _fill_render_list(p_cull_result, p_cull_count, pass_mode); - _setup_view_dependant_uniform_set(RID(), RID(), nullptr, 0); + RID rp_uniform_set = _setup_render_pass_uniform_set(RID(), RID(), RID(), RID(), nullptr, 0); RENDER_TIMESTAMP("Render Collider Heightield"); @@ -2072,7 +2058,7 @@ void RendererSceneRenderForward::_render_particle_collider_heightfield(RID p_fb, { //regular forward for now RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(p_fb, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_fb), render_list.elements, render_list.element_count, false, pass_mode, true, RID(), RID()); + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_fb), render_list.elements, render_list.element_count, false, pass_mode, true, rp_uniform_set); RD::get_singleton()->draw_list_end(); } } @@ -2094,7 +2080,7 @@ void RendererSceneRenderForward::_render_material(const Transform &p_cam_transfo PassMode pass_mode = PASS_MODE_DEPTH_MATERIAL; _fill_render_list(p_cull_result, p_cull_count, pass_mode); - _setup_view_dependant_uniform_set(RID(), RID(), nullptr, 0); + RID rp_uniform_set = _setup_render_pass_uniform_set(RID(), RID(), RID(), RID(), nullptr, 0); RENDER_TIMESTAMP("Render Material"); @@ -2111,7 +2097,7 @@ void RendererSceneRenderForward::_render_material(const Transform &p_cam_transfo clear.push_back(Color(0, 0, 0, 0)); clear.push_back(Color(0, 0, 0, 0)); RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(p_framebuffer, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_READ, clear, 1.0, 0, p_region); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, true, pass_mode, true, RID(), RID()); + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, true, pass_mode, true, rp_uniform_set); RD::get_singleton()->draw_list_end(); } } @@ -2133,7 +2119,7 @@ void RendererSceneRenderForward::_render_uv2(InstanceBase **p_cull_result, int p PassMode pass_mode = PASS_MODE_DEPTH_MATERIAL; _fill_render_list(p_cull_result, p_cull_count, pass_mode); - _setup_view_dependant_uniform_set(RID(), RID(), nullptr, 0); + RID rp_uniform_set = _setup_render_pass_uniform_set(RID(), RID(), RID(), RID(), nullptr, 0); RENDER_TIMESTAMP("Render Material"); @@ -2169,9 +2155,9 @@ void RendererSceneRenderForward::_render_uv2(InstanceBase **p_cull_result, int p Vector2 ofs = uv_offsets[i]; ofs.x /= p_region.size.width; ofs.y /= p_region.size.height; - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, true, pass_mode, true, RID(), RID(), true, ofs); //first wireframe, for pseudo conservative + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, true, pass_mode, true, rp_uniform_set, true, ofs); //first wireframe, for pseudo conservative } - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, true, pass_mode, true, RID(), RID(), false); //second regular triangles + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(p_framebuffer), render_list.elements, render_list.element_count, true, pass_mode, true, rp_uniform_set, false); //second regular triangles RD::get_singleton()->draw_list_end(); } @@ -2182,7 +2168,7 @@ void RendererSceneRenderForward::_render_sdfgi(RID p_render_buffers, const Vecto _update_render_base_uniform_set(); - RenderBufferDataHighEnd *render_buffer = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); + RenderBufferDataForward *render_buffer = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); ERR_FAIL_COND(!render_buffer); render_pass++; @@ -2193,45 +2179,11 @@ void RendererSceneRenderForward::_render_sdfgi(RID p_render_buffers, const Vecto render_list.sort_by_key(false); _fill_instances(render_list.elements, render_list.element_count, true); - _setup_view_dependant_uniform_set(RID(), RID(), nullptr, 0); + RID rp_uniform_set = _setup_sdfgi_render_pass_uniform_set(p_albedo_texture, p_emission_texture, p_emission_aniso_texture, p_geom_facing_texture); Vector3 half_extents = p_bounds.size * 0.5; Vector3 center = p_bounds.position + half_extents; - if (render_buffer->render_sdfgi_uniform_set.is_null() || !RD::get_singleton()->uniform_set_is_valid(render_buffer->render_sdfgi_uniform_set)) { - Vector uniforms; - { - RD::Uniform u; - u.uniform_type = RD::UNIFORM_TYPE_IMAGE; - u.binding = 0; - u.ids.push_back(p_albedo_texture); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.uniform_type = RD::UNIFORM_TYPE_IMAGE; - u.binding = 1; - u.ids.push_back(p_emission_texture); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.uniform_type = RD::UNIFORM_TYPE_IMAGE; - u.binding = 2; - u.ids.push_back(p_emission_aniso_texture); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.uniform_type = RD::UNIFORM_TYPE_IMAGE; - u.binding = 3; - u.ids.push_back(p_geom_facing_texture); - uniforms.push_back(u); - } - - render_buffer->render_sdfgi_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_sdfgi_rd, RENDER_BUFFERS_UNIFORM_SET); - } - Vector sbs; sbs.push_back(p_albedo_texture); sbs.push_back(p_emission_texture); @@ -2287,7 +2239,7 @@ void RendererSceneRenderForward::_render_sdfgi(RID p_render_buffers, const Vecto } RD::DrawListID draw_list = RD::get_singleton()->draw_list_begin(E->get(), RD::INITIAL_ACTION_DROP, RD::FINAL_ACTION_DISCARD, RD::INITIAL_ACTION_DROP, RD::FINAL_ACTION_DISCARD, Vector(), 1.0, 0, Rect2(), sbs); - _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(E->get()), render_list.elements, render_list.element_count, true, pass_mode, true, RID(), render_buffer->render_sdfgi_uniform_set, false); //second regular triangles + _render_list(draw_list, RD::get_singleton()->framebuffer_get_format(E->get()), render_list.elements, render_list.element_count, true, pass_mode, true, rp_uniform_set, false); //second regular triangles RD::get_singleton()->draw_list_end(); } } @@ -2455,7 +2407,7 @@ void RendererSceneRenderForward::_update_render_base_uniform_set() { uniforms.push_back(u); } - { + if (!low_end) { RD::Uniform u; u.uniform_type = RD::UNIFORM_TYPE_UNIFORM_BUFFER; u.binding = 20; @@ -2467,9 +2419,14 @@ void RendererSceneRenderForward::_update_render_base_uniform_set() { } } -void RendererSceneRenderForward::_setup_view_dependant_uniform_set(RID p_shadow_atlas, RID p_reflection_atlas, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count) { - if (view_dependant_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(view_dependant_uniform_set)) { - RD::get_singleton()->free(view_dependant_uniform_set); +RID RendererSceneRenderForward::_setup_render_pass_uniform_set(RID p_render_buffers, RID p_radiance_texture, RID p_shadow_atlas, RID p_reflection_atlas, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count) { + if (render_pass_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(render_pass_uniform_set)) { + RD::get_singleton()->free(render_pass_uniform_set); + } + + RenderBufferDataForward *rb = nullptr; + if (p_render_buffers.is_valid()) { + rb = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); } //default render buffer and scene state uniform set @@ -2477,10 +2434,24 @@ void RendererSceneRenderForward::_setup_view_dependant_uniform_set(RID p_shadow_ Vector uniforms; { - RID ref_texture = p_reflection_atlas.is_valid() ? reflection_atlas_get_texture(p_reflection_atlas) : RID(); + RID radiance_texture; + if (p_radiance_texture.is_valid()) { + radiance_texture = p_radiance_texture; + } else { + radiance_texture = storage->texture_rd_get_default(is_using_radiance_cubemap_array() ? RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_ARRAY_BLACK : RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_BLACK); + } RD::Uniform u; u.binding = 0; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + u.ids.push_back(radiance_texture); + uniforms.push_back(u); + } + + { + RID ref_texture = p_reflection_atlas.is_valid() ? reflection_atlas_get_texture(p_reflection_atlas) : RID(); + RD::Uniform u; + u.binding = 1; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; if (ref_texture.is_valid()) { u.ids.push_back(ref_texture); } else { @@ -2491,7 +2462,7 @@ void RendererSceneRenderForward::_setup_view_dependant_uniform_set(RID p_shadow_ { RD::Uniform u; - u.binding = 1; + u.binding = 2; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; RID texture; if (p_shadow_atlas.is_valid()) { @@ -2506,8 +2477,9 @@ void RendererSceneRenderForward::_setup_view_dependant_uniform_set(RID p_shadow_ { RD::Uniform u; - u.binding = 2; + u.binding = 3; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + u.ids.resize(MAX_GI_PROBES); RID default_tex = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_3D_WHITE); for (int i = 0; i < MAX_GI_PROBES; i++) { if (i < p_gi_probe_cull_count) { @@ -2515,84 +2487,47 @@ void RendererSceneRenderForward::_setup_view_dependant_uniform_set(RID p_shadow_ if (!tex.is_valid()) { tex = default_tex; } - u.ids.push_back(tex); + u.ids.write[i] = tex; } else { - u.ids.push_back(default_tex); + u.ids.write[i] = default_tex; } } uniforms.push_back(u); } - view_dependant_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, VIEW_DEPENDANT_UNIFORM_SET); -} -void RendererSceneRenderForward::_render_buffers_clear_uniform_set(RenderBufferDataHighEnd *rb) { - if (!rb->uniform_set.is_null() && RD::get_singleton()->uniform_set_is_valid(rb->uniform_set)) { - RD::get_singleton()->free(rb->uniform_set); + { + RD::Uniform u; + u.binding = 4; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + RID texture = false && rb && rb->depth.is_valid() ? rb->depth : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_WHITE); + u.ids.push_back(texture); + uniforms.push_back(u); } - rb->uniform_set = RID(); -} - -void RendererSceneRenderForward::_render_buffers_uniform_set_changed(RID p_render_buffers) { - RenderBufferDataHighEnd *rb = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); - - _render_buffers_clear_uniform_set(rb); -} - -RID RendererSceneRenderForward::_render_buffers_get_normal_texture(RID p_render_buffers) { - RenderBufferDataHighEnd *rb = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); - - return rb->normal_roughness_buffer; -} - -RID RendererSceneRenderForward::_render_buffers_get_ambient_texture(RID p_render_buffers) { - RenderBufferDataHighEnd *rb = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); - - return rb->ambient_buffer; -} - -RID RendererSceneRenderForward::_render_buffers_get_reflection_texture(RID p_render_buffers) { - RenderBufferDataHighEnd *rb = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); - - return rb->reflection_buffer; -} - -void RendererSceneRenderForward::_update_render_buffers_uniform_set(RID p_render_buffers) { - RenderBufferDataHighEnd *rb = (RenderBufferDataHighEnd *)render_buffers_get_data(p_render_buffers); - - if (rb->uniform_set.is_null() || !RD::get_singleton()->uniform_set_is_valid(rb->uniform_set)) { - Vector uniforms; - { - RD::Uniform u; - u.binding = 0; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = false && rb->depth.is_valid() ? rb->depth : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_WHITE); - u.ids.push_back(texture); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.binding = 1; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID bbt = render_buffers_get_back_buffer_texture(p_render_buffers); - RID texture = bbt.is_valid() ? bbt : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); - u.ids.push_back(texture); - uniforms.push_back(u); - } + { + RD::Uniform u; + u.binding = 5; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + RID bbt = rb ? render_buffers_get_back_buffer_texture(p_render_buffers) : RID(); + RID texture = bbt.is_valid() ? bbt : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); + u.ids.push_back(texture); + uniforms.push_back(u); + } + if (!low_end) { { RD::Uniform u; - u.binding = 2; + u.binding = 6; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = rb->normal_roughness_buffer.is_valid() ? rb->normal_roughness_buffer : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_NORMAL); + RID texture = rb && rb->normal_roughness_buffer.is_valid() ? rb->normal_roughness_buffer : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_NORMAL); u.ids.push_back(texture); uniforms.push_back(u); } { RD::Uniform u; - u.binding = 4; + u.binding = 7; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID aot = render_buffers_get_ao_texture(p_render_buffers); + RID aot = rb ? render_buffers_get_ao_texture(p_render_buffers) : RID(); RID texture = aot.is_valid() ? aot : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); u.ids.push_back(texture); uniforms.push_back(u); @@ -2600,27 +2535,27 @@ void RendererSceneRenderForward::_update_render_buffers_uniform_set(RID p_render { RD::Uniform u; - u.binding = 5; + u.binding = 8; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = rb->ambient_buffer.is_valid() ? rb->ambient_buffer : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); + RID texture = rb && rb->ambient_buffer.is_valid() ? rb->ambient_buffer : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); u.ids.push_back(texture); uniforms.push_back(u); } { RD::Uniform u; - u.binding = 6; + u.binding = 9; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = rb->reflection_buffer.is_valid() ? rb->reflection_buffer : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); + RID texture = rb && rb->reflection_buffer.is_valid() ? rb->reflection_buffer : storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK); u.ids.push_back(texture); uniforms.push_back(u); } { RD::Uniform u; - u.binding = 7; + u.binding = 10; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; RID t; - if (render_buffers_is_sdfgi_enabled(p_render_buffers)) { + if (rb && render_buffers_is_sdfgi_enabled(p_render_buffers)) { t = render_buffers_get_sdfgi_irradiance_probes(p_render_buffers); } else { t = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_2D_ARRAY_WHITE); @@ -2630,9 +2565,9 @@ void RendererSceneRenderForward::_update_render_buffers_uniform_set(RID p_render } { RD::Uniform u; - u.binding = 8; + u.binding = 11; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - if (render_buffers_is_sdfgi_enabled(p_render_buffers)) { + if (rb && render_buffers_is_sdfgi_enabled(p_render_buffers)) { u.ids.push_back(render_buffers_get_sdfgi_occlusion_texture(p_render_buffers)); } else { u.ids.push_back(storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_3D_WHITE)); @@ -2641,17 +2576,17 @@ void RendererSceneRenderForward::_update_render_buffers_uniform_set(RID p_render } { RD::Uniform u; - u.binding = 9; + u.binding = 12; u.uniform_type = RD::UNIFORM_TYPE_UNIFORM_BUFFER; - u.ids.push_back(render_buffers_get_gi_probe_buffer(p_render_buffers)); + u.ids.push_back(rb ? render_buffers_get_default_gi_probe_buffer() : render_buffers_get_gi_probe_buffer(p_render_buffers)); uniforms.push_back(u); } { RD::Uniform u; - u.binding = 10; + u.binding = 13; u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; RID vfog = RID(); - if (p_render_buffers.is_valid() && render_buffers_has_volumetric_fog(p_render_buffers)) { + if (rb && render_buffers_has_volumetric_fog(p_render_buffers)) { vfog = render_buffers_get_volumetric_fog_texture(p_render_buffers); if (vfog.is_null()) { vfog = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_3D_WHITE); @@ -2662,8 +2597,122 @@ void RendererSceneRenderForward::_update_render_buffers_uniform_set(RID p_render u.ids.push_back(vfog); uniforms.push_back(u); } - rb->uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, RENDER_BUFFERS_UNIFORM_SET); } + + render_pass_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, RENDER_PASS_UNIFORM_SET); + return render_pass_uniform_set; +} + +RID RendererSceneRenderForward::_setup_sdfgi_render_pass_uniform_set(RID p_albedo_texture, RID p_emission_texture, RID p_emission_aniso_texture, RID p_geom_facing_texture) { + if (sdfgi_pass_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(sdfgi_pass_uniform_set)) { + RD::get_singleton()->free(sdfgi_pass_uniform_set); + } + + Vector uniforms; + + { + // No radiance texture. + RID radiance_texture = storage->texture_rd_get_default(is_using_radiance_cubemap_array() ? RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_ARRAY_BLACK : RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_BLACK); + RD::Uniform u; + u.binding = 0; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + u.ids.push_back(radiance_texture); + uniforms.push_back(u); + } + + { + // No reflection atlas. + RID ref_texture = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_ARRAY_BLACK); + RD::Uniform u; + u.binding = 1; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + u.ids.push_back(ref_texture); + uniforms.push_back(u); + } + + { + // No shadow atlas. + RD::Uniform u; + u.binding = 2; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + RID texture = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_WHITE); + u.ids.push_back(texture); + uniforms.push_back(u); + } + + { + // No GIProbes + RD::Uniform u; + u.binding = 3; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + u.ids.resize(MAX_GI_PROBES); + RID default_tex = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_3D_WHITE); + for (int i = 0; i < MAX_GI_PROBES; i++) { + u.ids.write[i] = default_tex; + } + + uniforms.push_back(u); + } + // actual sdfgi stuff + + { + RD::Uniform u; + u.uniform_type = RD::UNIFORM_TYPE_IMAGE; + u.binding = 4; + u.ids.push_back(p_albedo_texture); + uniforms.push_back(u); + } + { + RD::Uniform u; + u.uniform_type = RD::UNIFORM_TYPE_IMAGE; + u.binding = 5; + u.ids.push_back(p_emission_texture); + uniforms.push_back(u); + } + { + RD::Uniform u; + u.uniform_type = RD::UNIFORM_TYPE_IMAGE; + u.binding = 6; + u.ids.push_back(p_emission_aniso_texture); + uniforms.push_back(u); + } + { + RD::Uniform u; + u.uniform_type = RD::UNIFORM_TYPE_IMAGE; + u.binding = 7; + u.ids.push_back(p_geom_facing_texture); + uniforms.push_back(u); + } + + sdfgi_pass_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, RENDER_PASS_UNIFORM_SET); + return sdfgi_pass_uniform_set; +} + +void RendererSceneRenderForward::_render_buffers_clear_uniform_set(RenderBufferDataForward *rb) { +} + +void RendererSceneRenderForward::_render_buffers_uniform_set_changed(RID p_render_buffers) { + RenderBufferDataForward *rb = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); + + _render_buffers_clear_uniform_set(rb); +} + +RID RendererSceneRenderForward::_render_buffers_get_normal_texture(RID p_render_buffers) { + RenderBufferDataForward *rb = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); + + return rb->normal_roughness_buffer; +} + +RID RendererSceneRenderForward::_render_buffers_get_ambient_texture(RID p_render_buffers) { + RenderBufferDataForward *rb = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); + + return rb->ambient_buffer; +} + +RID RendererSceneRenderForward::_render_buffers_get_reflection_texture(RID p_render_buffers) { + RenderBufferDataForward *rb = (RenderBufferDataForward *)render_buffers_get_data(p_render_buffers); + + return rb->reflection_buffer; } RendererSceneRenderForward *RendererSceneRenderForward::singleton = nullptr; @@ -2676,12 +2725,17 @@ void RendererSceneRenderForward::set_time(double p_time, double p_step) { RendererSceneRenderForward::RendererSceneRenderForward(RendererStorageRD *p_storage) : RendererSceneRenderRD(p_storage) { singleton = this; + low_end = is_low_end(); storage = p_storage; /* SCENE SHADER */ { String defines; + if (low_end) { + defines += "\n#define LOW_END_MODE \n"; + } + defines += "\n#define MAX_ROUGHNESS_LOD " + itos(get_roughness_layers() - 1) + ".0\n"; if (is_using_radiance_cubemap_array()) { defines += "\n#define USE_RADIANCE_CUBEMAP_ARRAY \n"; @@ -2721,6 +2775,16 @@ RendererSceneRenderForward::RendererSceneRenderForward(RendererStorageRD *p_stor shader_versions.push_back("\n#define USE_LIGHTMAP\n"); shader_versions.push_back("\n#define MODE_MULTIPLE_RENDER_TARGETS\n#define USE_LIGHTMAP\n"); shader.scene_shader.initialize(shader_versions, defines); + + if (is_low_end()) { + //disable the high end versions + shader.scene_shader.set_variant_enabled(SHADER_VERSION_DEPTH_PASS_WITH_NORMAL_AND_ROUGHNESS, false); + shader.scene_shader.set_variant_enabled(SHADER_VERSION_DEPTH_PASS_WITH_NORMAL_AND_ROUGHNESS_AND_GIPROBE, false); + shader.scene_shader.set_variant_enabled(SHADER_VERSION_DEPTH_PASS_WITH_SDF, false); + shader.scene_shader.set_variant_enabled(SHADER_VERSION_COLOR_PASS_WITH_FORWARD_GI, false); + shader.scene_shader.set_variant_enabled(SHADER_VERSION_COLOR_PASS_WITH_SEPARATE_SPECULAR, false); + shader.scene_shader.set_variant_enabled(SHADER_VERSION_LIGHTMAP_COLOR_PASS_WITH_SEPARATE_SPECULAR, false); + } } storage->shader_set_data_request_function(RendererStorageRD::SHADER_TYPE_3D, _create_shader_funcs); @@ -2924,7 +2988,9 @@ RendererSceneRenderForward::RendererSceneRenderForward(RendererStorageRD *p_stor MaterialData *md = (MaterialData *)storage->material_get_data(default_material, RendererStorageRD::SHADER_TYPE_3D); default_shader_rd = shader.scene_shader.version_get_shader(md->shader_data->version, SHADER_VERSION_COLOR_PASS); - default_shader_sdfgi_rd = shader.scene_shader.version_get_shader(md->shader_data->version, SHADER_VERSION_DEPTH_PASS_WITH_SDF); + if (!low_end) { + default_shader_sdfgi_rd = shader.scene_shader.version_get_shader(md->shader_data->version, SHADER_VERSION_DEPTH_PASS_WITH_SDF); + } } { @@ -2958,74 +3024,20 @@ RendererSceneRenderForward::RendererSceneRenderForward(RendererStorageRD *p_stor sampler.compare_op = RD::COMPARE_OP_LESS; shadow_sampler = RD::get_singleton()->sampler_create(sampler); } - - { - Vector uniforms; - - RD::Uniform u; - u.binding = 0; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = storage->texture_rd_get_default(is_using_radiance_cubemap_array() ? RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_ARRAY_BLACK : RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_BLACK); - u.ids.push_back(texture); - uniforms.push_back(u); - - default_radiance_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, RADIANCE_UNIFORM_SET); - } - - { //render buffers - Vector uniforms; - for (int i = 0; i < 7; i++) { - RD::Uniform u; - u.binding = i; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = storage->texture_rd_get_default(i == 0 ? RendererStorageRD::DEFAULT_RD_TEXTURE_WHITE : (i == 2 ? RendererStorageRD::DEFAULT_RD_TEXTURE_NORMAL : RendererStorageRD::DEFAULT_RD_TEXTURE_BLACK)); - u.ids.push_back(texture); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.binding = 7; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - RID texture = storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_2D_ARRAY_WHITE); - u.ids.push_back(texture); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.binding = 8; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - u.ids.push_back(storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_3D_WHITE)); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.binding = 9; - u.uniform_type = RD::UNIFORM_TYPE_UNIFORM_BUFFER; - u.ids.push_back(render_buffers_get_default_gi_probe_buffer()); - uniforms.push_back(u); - } - { - RD::Uniform u; - u.binding = 10; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - u.ids.push_back(storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_3D_WHITE)); - uniforms.push_back(u); - } - - default_render_buffers_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, default_shader_rd, RENDER_BUFFERS_UNIFORM_SET); - } } RendererSceneRenderForward::~RendererSceneRenderForward() { directional_shadow_atlas_set_size(0); //clear base uniform set if still valid - if (view_dependant_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(view_dependant_uniform_set)) { - RD::get_singleton()->free(view_dependant_uniform_set); + if (render_pass_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(render_pass_uniform_set)) { + RD::get_singleton()->free(render_pass_uniform_set); + } + + if (sdfgi_pass_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(sdfgi_pass_uniform_set)) { + RD::get_singleton()->free(sdfgi_pass_uniform_set); } - RD::get_singleton()->free(default_render_buffers_uniform_set); - RD::get_singleton()->free(default_radiance_uniform_set); RD::get_singleton()->free(default_vec4_xform_buffer); RD::get_singleton()->free(shadow_sampler); diff --git a/servers/rendering/renderer_rd/renderer_scene_render_forward.h b/servers/rendering/renderer_rd/renderer_scene_render_forward.h index 7cea44cd38..6d76d5f0eb 100644 --- a/servers/rendering/renderer_rd/renderer_scene_render_forward.h +++ b/servers/rendering/renderer_rd/renderer_scene_render_forward.h @@ -34,16 +34,14 @@ #include "servers/rendering/renderer_rd/pipeline_cache_rd.h" #include "servers/rendering/renderer_rd/renderer_scene_render_rd.h" #include "servers/rendering/renderer_rd/renderer_storage_rd.h" -#include "servers/rendering/renderer_rd/shaders/scene_high_end.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/scene_forward.glsl.gen.h" class RendererSceneRenderForward : public RendererSceneRenderRD { enum { SCENE_UNIFORM_SET = 0, - RADIANCE_UNIFORM_SET = 1, - VIEW_DEPENDANT_UNIFORM_SET = 2, - RENDER_BUFFERS_UNIFORM_SET = 3, - TRANSFORMS_UNIFORM_SET = 4, - MATERIAL_UNIFORM_SET = 5 + RENDER_PASS_UNIFORM_SET = 1, + TRANSFORMS_UNIFORM_SET = 2, + MATERIAL_UNIFORM_SET = 3 }; enum { @@ -69,7 +67,7 @@ class RendererSceneRenderForward : public RendererSceneRenderRD { }; struct { - SceneHighEndShaderRD scene_shader; + SceneForwardShaderRD scene_shader; ShaderCompilerRD compiler; } shader; @@ -209,7 +207,7 @@ class RendererSceneRenderForward : public RendererSceneRenderRD { /* Framebuffer */ - struct RenderBufferDataHighEnd : public RenderBufferData { + struct RenderBufferDataForward : public RenderBufferData { //for rendering, may be MSAAd RID color; @@ -246,30 +244,29 @@ class RendererSceneRenderForward : public RendererSceneRenderRD { void clear(); virtual void configure(RID p_color_buffer, RID p_depth_buffer, int p_width, int p_height, RS::ViewportMSAA p_msaa); - RID uniform_set; - - ~RenderBufferDataHighEnd(); + ~RenderBufferDataForward(); }; virtual RenderBufferData *_create_render_buffer_data(); - void _allocate_normal_roughness_texture(RenderBufferDataHighEnd *rb); + void _allocate_normal_roughness_texture(RenderBufferDataForward *rb); RID shadow_sampler; RID render_base_uniform_set; - RID view_dependant_uniform_set; + RID render_pass_uniform_set; + RID sdfgi_pass_uniform_set; uint64_t lightmap_texture_array_version = 0xFFFFFFFF; virtual void _base_uniforms_changed(); - void _render_buffers_clear_uniform_set(RenderBufferDataHighEnd *rb); + void _render_buffers_clear_uniform_set(RenderBufferDataForward *rb); virtual void _render_buffers_uniform_set_changed(RID p_render_buffers); virtual RID _render_buffers_get_normal_texture(RID p_render_buffers); virtual RID _render_buffers_get_ambient_texture(RID p_render_buffers); virtual RID _render_buffers_get_reflection_texture(RID p_render_buffers); void _update_render_base_uniform_set(); - void _setup_view_dependant_uniform_set(RID p_shadow_atlas, RID p_reflection_atlas, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count); - void _update_render_buffers_uniform_set(RID p_render_buffers); + RID _setup_sdfgi_render_pass_uniform_set(RID p_albedo_texture, RID p_emission_texture, RID p_emission_aniso_texture, RID p_geom_facing_texture); + RID _setup_render_pass_uniform_set(RID p_render_buffers, RID p_radiance_texture, RID p_shadow_atlas, RID p_reflection_atlas, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count); struct LightmapData { float normal_xform[12]; @@ -552,8 +549,6 @@ class RendererSceneRenderForward : public RendererSceneRenderRD { RID wireframe_material; RID default_shader_rd; RID default_shader_sdfgi_rd; - RID default_radiance_uniform_set; - RID default_render_buffers_uniform_set; RID default_vec4_xform_buffer; RID default_vec4_xform_uniform_set; @@ -575,7 +570,7 @@ class RendererSceneRenderForward : public RendererSceneRenderRD { void _setup_lightmaps(InstanceBase **p_lightmap_cull_result, int p_lightmap_cull_count, const Transform &p_cam_transform); void _fill_instances(RenderList::Element **p_elements, int p_element_count, bool p_for_depth, bool p_has_sdfgi = false, bool p_has_opaque_gi = false); - void _render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderList::Element **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_radiance_uniform_set, RID p_render_buffers_uniform_set, bool p_force_wireframe = false, const Vector2 &p_uv_offset = Vector2()); + void _render_list(RenderingDevice::DrawListID p_draw_list, RenderingDevice::FramebufferFormatID p_framebuffer_Format, RenderList::Element **p_elements, int p_element_count, bool p_reverse_cull, PassMode p_pass_mode, bool p_no_gi, RID p_render_pass_uniform_set, bool p_force_wireframe = false, const Vector2 &p_uv_offset = Vector2()); _FORCE_INLINE_ void _add_geometry(InstanceBase *p_instance, uint32_t p_surface, RID p_material, PassMode p_pass_mode, uint32_t p_geometry_index, bool p_using_sdfgi = false); _FORCE_INLINE_ void _add_geometry_with_material(InstanceBase *p_instance, uint32_t p_surface, MaterialData *p_material, RID p_material_rid, PassMode p_pass_mode, uint32_t p_geometry_index, bool p_using_sdfgi = false); @@ -583,6 +578,8 @@ class RendererSceneRenderForward : public RendererSceneRenderRD { Map sdfgi_framebuffer_size_cache; + bool low_end = false; + protected: virtual void _render_scene(RID p_render_buffer, const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, int p_directional_light_count, RID *p_gi_probe_cull_result, int p_gi_probe_cull_count, InstanceBase **p_lightmap_cull_result, int p_lightmap_cull_count, RID p_environment, RID p_camera_effects, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass, const Color &p_default_bg_color); virtual void _render_shadow(RID p_framebuffer, InstanceBase **p_cull_result, int p_cull_count, const CameraMatrix &p_projection, const Transform &p_transform, float p_zfar, float p_bias, float p_normal_bias, bool p_use_dp, bool p_use_dp_flip, bool p_use_pancake); diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp b/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp index 13fc61eee6..ee4da1b5ee 100644 --- a/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp +++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.cpp @@ -2971,6 +2971,10 @@ void RendererSceneRenderRD::environment_set_sdfgi(RID p_env, bool p_enable, RS:: Environment *env = environment_owner.getornull(p_env); ERR_FAIL_COND(!env); + if (low_end) { + return; + } + env->sdfgi_enabled = p_enable; env->sdfgi_cascades = p_cascades; env->sdfgi_min_cell_size = p_min_cell_size; @@ -3045,6 +3049,10 @@ void RendererSceneRenderRD::environment_set_volumetric_fog(RID p_env, bool p_ena Environment *env = environment_owner.getornull(p_env); ERR_FAIL_COND(!env); + if (low_end) { + return; + } + env->volumetric_fog_enabled = p_enable; env->volumetric_fog_density = p_density; env->volumetric_fog_light = p_light; @@ -3095,6 +3103,10 @@ void RendererSceneRenderRD::environment_set_ssr(RID p_env, bool p_enable, int p_ Environment *env = environment_owner.getornull(p_env); ERR_FAIL_COND(!env); + if (low_end) { + return; + } + env->ssr_enabled = p_enable; env->ssr_max_steps = p_max_steps; env->ssr_fade_in = p_fade_int; @@ -3114,6 +3126,10 @@ void RendererSceneRenderRD::environment_set_ssao(RID p_env, bool p_enable, float Environment *env = environment_owner.getornull(p_env); ERR_FAIL_COND(!env); + if (low_end) { + return; + } + env->ssao_enabled = p_enable; env->ssao_radius = p_radius; env->ssao_intensity = p_intensity; @@ -4024,6 +4040,10 @@ bool RendererSceneRenderRD::gi_probe_needs_update(RID p_probe) const { GIProbeInstance *gi_probe = gi_probe_instance_owner.getornull(p_probe); ERR_FAIL_COND_V(!gi_probe, false); + if (low_end) { + return false; + } + //return true; return gi_probe->last_probe_version != storage->gi_probe_get_version(gi_probe->probe); } @@ -4032,6 +4052,10 @@ void RendererSceneRenderRD::gi_probe_update(RID p_probe, bool p_update_light_ins GIProbeInstance *gi_probe = gi_probe_instance_owner.getornull(p_probe); ERR_FAIL_COND(!gi_probe); + if (low_end) { + return; + } + uint32_t data_version = storage->gi_probe_get_data_version(gi_probe->probe); // (RE)CREATE IF NEEDED @@ -7952,6 +7976,10 @@ int RendererSceneRenderRD::get_max_directional_lights() const { return cluster.max_directional_lights; } +bool RendererSceneRenderRD::is_low_end() const { + return low_end; +} + RendererSceneRenderRD::RendererSceneRenderRD(RendererStorageRD *p_storage) { storage = p_storage; singleton = this; @@ -7961,9 +7989,15 @@ RendererSceneRenderRD::RendererSceneRenderRD(RendererStorageRD *p_storage) { sky_use_cubemap_array = GLOBAL_GET("rendering/quality/reflections/texture_array_reflections"); // sky_use_cubemap_array = false; - //uint32_t textures_per_stage = RD::get_singleton()->limit_get(RD::LIMIT_MAX_TEXTURES_PER_SHADER_STAGE); + uint32_t textures_per_stage = RD::get_singleton()->limit_get(RD::LIMIT_MAX_TEXTURES_PER_SHADER_STAGE); - { + low_end = GLOBAL_GET("rendering/quality/rd_renderer/use_low_end_renderer"); + + if (textures_per_stage < 48) { + low_end = true; + } + + if (!low_end) { //kinda complicated to compute the amount of slots, we try to use as many as we can gi_probe_max_lights = 32; @@ -7992,7 +8026,7 @@ RendererSceneRenderRD::RendererSceneRenderRD(RendererStorageRD *p_storage) { } } - { + if (!low_end) { String defines; Vector versions; versions.push_back("\n#define MODE_DEBUG_COLOR\n"); @@ -8208,121 +8242,125 @@ RendererSceneRenderRD::RendererSceneRenderRD(RendererStorageRD *p_storage) { sky_scene_state.fog_only_texture_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, sky_shader.default_shader_rd, SKY_SET_TEXTURES); } - { - Vector preprocess_modes; - preprocess_modes.push_back("\n#define MODE_SCROLL\n"); - preprocess_modes.push_back("\n#define MODE_SCROLL_OCCLUSION\n"); - preprocess_modes.push_back("\n#define MODE_INITIALIZE_JUMP_FLOOD\n"); - preprocess_modes.push_back("\n#define MODE_INITIALIZE_JUMP_FLOOD_HALF\n"); - preprocess_modes.push_back("\n#define MODE_JUMPFLOOD\n"); - preprocess_modes.push_back("\n#define MODE_JUMPFLOOD_OPTIMIZED\n"); - preprocess_modes.push_back("\n#define MODE_UPSCALE_JUMP_FLOOD\n"); - preprocess_modes.push_back("\n#define MODE_OCCLUSION\n"); - preprocess_modes.push_back("\n#define MODE_STORE\n"); - String defines = "\n#define OCCLUSION_SIZE " + itos(SDFGI::CASCADE_SIZE / SDFGI::PROBE_DIVISOR) + "\n"; - sdfgi_shader.preprocess.initialize(preprocess_modes, defines); - sdfgi_shader.preprocess_shader = sdfgi_shader.preprocess.version_create(); - for (int i = 0; i < SDGIShader::PRE_PROCESS_MAX; i++) { - sdfgi_shader.preprocess_pipeline[i] = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.preprocess.version_get_shader(sdfgi_shader.preprocess_shader, i)); + if (!low_end) { + //SDFGI + { + Vector preprocess_modes; + preprocess_modes.push_back("\n#define MODE_SCROLL\n"); + preprocess_modes.push_back("\n#define MODE_SCROLL_OCCLUSION\n"); + preprocess_modes.push_back("\n#define MODE_INITIALIZE_JUMP_FLOOD\n"); + preprocess_modes.push_back("\n#define MODE_INITIALIZE_JUMP_FLOOD_HALF\n"); + preprocess_modes.push_back("\n#define MODE_JUMPFLOOD\n"); + preprocess_modes.push_back("\n#define MODE_JUMPFLOOD_OPTIMIZED\n"); + preprocess_modes.push_back("\n#define MODE_UPSCALE_JUMP_FLOOD\n"); + preprocess_modes.push_back("\n#define MODE_OCCLUSION\n"); + preprocess_modes.push_back("\n#define MODE_STORE\n"); + String defines = "\n#define OCCLUSION_SIZE " + itos(SDFGI::CASCADE_SIZE / SDFGI::PROBE_DIVISOR) + "\n"; + sdfgi_shader.preprocess.initialize(preprocess_modes, defines); + sdfgi_shader.preprocess_shader = sdfgi_shader.preprocess.version_create(); + for (int i = 0; i < SDGIShader::PRE_PROCESS_MAX; i++) { + sdfgi_shader.preprocess_pipeline[i] = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.preprocess.version_get_shader(sdfgi_shader.preprocess_shader, i)); + } } - } - { - //calculate tables - String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; + { + //calculate tables + String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; - Vector direct_light_modes; - direct_light_modes.push_back("\n#define MODE_PROCESS_STATIC\n"); - direct_light_modes.push_back("\n#define MODE_PROCESS_DYNAMIC\n"); - sdfgi_shader.direct_light.initialize(direct_light_modes, defines); - sdfgi_shader.direct_light_shader = sdfgi_shader.direct_light.version_create(); - for (int i = 0; i < SDGIShader::DIRECT_LIGHT_MODE_MAX; i++) { - sdfgi_shader.direct_light_pipeline[i] = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.direct_light.version_get_shader(sdfgi_shader.direct_light_shader, i)); + Vector direct_light_modes; + direct_light_modes.push_back("\n#define MODE_PROCESS_STATIC\n"); + direct_light_modes.push_back("\n#define MODE_PROCESS_DYNAMIC\n"); + sdfgi_shader.direct_light.initialize(direct_light_modes, defines); + sdfgi_shader.direct_light_shader = sdfgi_shader.direct_light.version_create(); + for (int i = 0; i < SDGIShader::DIRECT_LIGHT_MODE_MAX; i++) { + sdfgi_shader.direct_light_pipeline[i] = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.direct_light.version_get_shader(sdfgi_shader.direct_light_shader, i)); + } } - } - { - //calculate tables - String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; - defines += "\n#define SH_SIZE " + itos(SDFGI::SH_SIZE) + "\n"; - - Vector integrate_modes; - integrate_modes.push_back("\n#define MODE_PROCESS\n"); - integrate_modes.push_back("\n#define MODE_STORE\n"); - integrate_modes.push_back("\n#define MODE_SCROLL\n"); - integrate_modes.push_back("\n#define MODE_SCROLL_STORE\n"); - sdfgi_shader.integrate.initialize(integrate_modes, defines); - sdfgi_shader.integrate_shader = sdfgi_shader.integrate.version_create(); + { + //calculate tables + String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; + defines += "\n#define SH_SIZE " + itos(SDFGI::SH_SIZE) + "\n"; - for (int i = 0; i < SDGIShader::INTEGRATE_MODE_MAX; i++) { - sdfgi_shader.integrate_pipeline[i] = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.integrate.version_get_shader(sdfgi_shader.integrate_shader, i)); - } + Vector integrate_modes; + integrate_modes.push_back("\n#define MODE_PROCESS\n"); + integrate_modes.push_back("\n#define MODE_STORE\n"); + integrate_modes.push_back("\n#define MODE_SCROLL\n"); + integrate_modes.push_back("\n#define MODE_SCROLL_STORE\n"); + sdfgi_shader.integrate.initialize(integrate_modes, defines); + sdfgi_shader.integrate_shader = sdfgi_shader.integrate.version_create(); - { - Vector uniforms; + for (int i = 0; i < SDGIShader::INTEGRATE_MODE_MAX; i++) { + sdfgi_shader.integrate_pipeline[i] = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.integrate.version_get_shader(sdfgi_shader.integrate_shader, i)); + } { - RD::Uniform u; - u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; - u.binding = 0; - u.ids.push_back(storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_WHITE)); - uniforms.push_back(u); + Vector uniforms; + + { + RD::Uniform u; + u.uniform_type = RD::UNIFORM_TYPE_TEXTURE; + u.binding = 0; + u.ids.push_back(storage->texture_rd_get_default(RendererStorageRD::DEFAULT_RD_TEXTURE_CUBEMAP_WHITE)); + uniforms.push_back(u); + } + { + RD::Uniform u; + u.uniform_type = RD::UNIFORM_TYPE_SAMPLER; + u.binding = 1; + u.ids.push_back(storage->sampler_rd_get_default(RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR_WITH_MIPMAPS, RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED)); + uniforms.push_back(u); + } + + sdfgi_shader.integrate_default_sky_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, sdfgi_shader.integrate.version_get_shader(sdfgi_shader.integrate_shader, 0), 1); } - { - RD::Uniform u; - u.uniform_type = RD::UNIFORM_TYPE_SAMPLER; - u.binding = 1; - u.ids.push_back(storage->sampler_rd_get_default(RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR_WITH_MIPMAPS, RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED)); - uniforms.push_back(u); + } + { + //calculate tables + String defines = "\n#define SDFGI_OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; + Vector gi_modes; + gi_modes.push_back(""); + gi.shader.initialize(gi_modes, defines); + gi.shader_version = gi.shader.version_create(); + for (int i = 0; i < GI::MODE_MAX; i++) { + gi.pipelines[i] = RD::get_singleton()->compute_pipeline_create(gi.shader.version_get_shader(gi.shader_version, i)); } - sdfgi_shader.integrate_default_sky_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, sdfgi_shader.integrate.version_get_shader(sdfgi_shader.integrate_shader, 0), 1); + gi.sdfgi_ubo = RD::get_singleton()->uniform_buffer_create(sizeof(GI::SDFGIData)); } - } - { - //calculate tables - String defines = "\n#define SDFGI_OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; - Vector gi_modes; - gi_modes.push_back(""); - gi.shader.initialize(gi_modes, defines); - gi.shader_version = gi.shader.version_create(); - for (int i = 0; i < GI::MODE_MAX; i++) { - gi.pipelines[i] = RD::get_singleton()->compute_pipeline_create(gi.shader.version_get_shader(gi.shader_version, i)); + { + String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; + Vector debug_modes; + debug_modes.push_back(""); + sdfgi_shader.debug.initialize(debug_modes, defines); + sdfgi_shader.debug_shader = sdfgi_shader.debug.version_create(); + sdfgi_shader.debug_shader_version = sdfgi_shader.debug.version_get_shader(sdfgi_shader.debug_shader, 0); + sdfgi_shader.debug_pipeline = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.debug_shader_version); } + { + String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; - gi.sdfgi_ubo = RD::get_singleton()->uniform_buffer_create(sizeof(GI::SDFGIData)); - } - { - String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; - Vector debug_modes; - debug_modes.push_back(""); - sdfgi_shader.debug.initialize(debug_modes, defines); - sdfgi_shader.debug_shader = sdfgi_shader.debug.version_create(); - sdfgi_shader.debug_shader_version = sdfgi_shader.debug.version_get_shader(sdfgi_shader.debug_shader, 0); - sdfgi_shader.debug_pipeline = RD::get_singleton()->compute_pipeline_create(sdfgi_shader.debug_shader_version); - } - { - String defines = "\n#define OCT_SIZE " + itos(SDFGI::LIGHTPROBE_OCT_SIZE) + "\n"; - - Vector versions; - versions.push_back("\n#define MODE_PROBES\n"); - versions.push_back("\n#define MODE_VISIBILITY\n"); + Vector versions; + versions.push_back("\n#define MODE_PROBES\n"); + versions.push_back("\n#define MODE_VISIBILITY\n"); - sdfgi_shader.debug_probes.initialize(versions, defines); - sdfgi_shader.debug_probes_shader = sdfgi_shader.debug_probes.version_create(); + sdfgi_shader.debug_probes.initialize(versions, defines); + sdfgi_shader.debug_probes_shader = sdfgi_shader.debug_probes.version_create(); - { - RD::PipelineRasterizationState rs; - rs.cull_mode = RD::POLYGON_CULL_DISABLED; - RD::PipelineDepthStencilState ds; - ds.enable_depth_test = true; - ds.enable_depth_write = true; - ds.depth_compare_operator = RD::COMPARE_OP_LESS_OR_EQUAL; - for (int i = 0; i < SDGIShader::PROBE_DEBUG_MAX; i++) { - RID debug_probes_shader_version = sdfgi_shader.debug_probes.version_get_shader(sdfgi_shader.debug_probes_shader, i); - sdfgi_shader.debug_probes_pipeline[i].setup(debug_probes_shader_version, RD::RENDER_PRIMITIVE_TRIANGLE_STRIPS, rs, RD::PipelineMultisampleState(), ds, RD::PipelineColorBlendState::create_disabled(), 0); + { + RD::PipelineRasterizationState rs; + rs.cull_mode = RD::POLYGON_CULL_DISABLED; + RD::PipelineDepthStencilState ds; + ds.enable_depth_test = true; + ds.enable_depth_write = true; + ds.depth_compare_operator = RD::COMPARE_OP_LESS_OR_EQUAL; + for (int i = 0; i < SDGIShader::PROBE_DEBUG_MAX; i++) { + RID debug_probes_shader_version = sdfgi_shader.debug_probes.version_get_shader(sdfgi_shader.debug_probes_shader, i); + sdfgi_shader.debug_probes_pipeline[i].setup(debug_probes_shader_version, RD::RENDER_PRIMITIVE_TRIANGLE_STRIPS, rs, RD::PipelineMultisampleState(), ds, RD::PipelineColorBlendState::create_disabled(), 0); + } } } + default_giprobe_buffer = RD::get_singleton()->uniform_buffer_create(sizeof(GI::GIProbeData) * RenderBuffers::MAX_GIPROBES); } //cluster setup @@ -8366,7 +8404,7 @@ RendererSceneRenderRD::RendererSceneRenderRD(RendererStorageRD *p_storage) { cluster.builder.setup(16, 8, 24); - { + if (!low_end) { String defines = "\n#define MAX_DIRECTIONAL_LIGHT_DATA_STRUCTS " + itos(cluster.max_directional_lights) + "\n"; Vector volumetric_fog_modes; volumetric_fog_modes.push_back("\n#define MODE_DENSITY\n"); @@ -8379,7 +8417,6 @@ RendererSceneRenderRD::RendererSceneRenderRD(RendererStorageRD *p_storage) { volumetric_fog.pipelines[i] = RD::get_singleton()->compute_pipeline_create(volumetric_fog.shader.version_get_shader(volumetric_fog.shader_version, i)); } } - default_giprobe_buffer = RD::get_singleton()->uniform_buffer_create(sizeof(GI::GIProbeData) * RenderBuffers::MAX_GIPROBES); { RD::SamplerState sampler; @@ -8427,22 +8464,25 @@ RendererSceneRenderRD::~RendererSceneRenderRD() { RD::get_singleton()->free(sky_scene_state.uniform_set); } - RD::get_singleton()->free(default_giprobe_buffer); - RD::get_singleton()->free(gi_probe_lights_uniform); - RD::get_singleton()->free(gi.sdfgi_ubo); + if (!low_end) { + RD::get_singleton()->free(default_giprobe_buffer); + RD::get_singleton()->free(gi_probe_lights_uniform); + RD::get_singleton()->free(gi.sdfgi_ubo); - giprobe_debug_shader.version_free(giprobe_debug_shader_version); - giprobe_shader.version_free(giprobe_lighting_shader_version); - gi.shader.version_free(gi.shader_version); - sdfgi_shader.debug_probes.version_free(sdfgi_shader.debug_probes_shader); - sdfgi_shader.debug.version_free(sdfgi_shader.debug_shader); - sdfgi_shader.direct_light.version_free(sdfgi_shader.direct_light_shader); - sdfgi_shader.integrate.version_free(sdfgi_shader.integrate_shader); - sdfgi_shader.preprocess.version_free(sdfgi_shader.preprocess_shader); + giprobe_debug_shader.version_free(giprobe_debug_shader_version); + giprobe_shader.version_free(giprobe_lighting_shader_version); + gi.shader.version_free(gi.shader_version); + sdfgi_shader.debug_probes.version_free(sdfgi_shader.debug_probes_shader); + sdfgi_shader.debug.version_free(sdfgi_shader.debug_shader); + sdfgi_shader.direct_light.version_free(sdfgi_shader.direct_light_shader); + sdfgi_shader.integrate.version_free(sdfgi_shader.integrate_shader); + sdfgi_shader.preprocess.version_free(sdfgi_shader.preprocess_shader); - volumetric_fog.shader.version_free(volumetric_fog.shader_version); + volumetric_fog.shader.version_free(volumetric_fog.shader_version); + + memdelete_arr(gi_probe_lights); + } - memdelete_arr(gi_probe_lights); SkyMaterialData *md = (SkyMaterialData *)storage->material_get_data(sky_shader.default_material, RendererStorageRD::SHADER_TYPE_SKY); sky_shader.shader.version_free(md->shader_data->version); RD::get_singleton()->free(sky_scene_state.directional_light_buffer); diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.h b/servers/rendering/renderer_rd/renderer_scene_render_rd.h index 8c994849c3..e3dfee2da7 100644 --- a/servers/rendering/renderer_rd/renderer_scene_render_rd.h +++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.h @@ -1456,6 +1456,8 @@ private: float weight; }; + bool low_end = false; + public: /* SHADOW ATLAS API */ @@ -1952,6 +1954,8 @@ public: void sdfgi_set_debug_probe_select(const Vector3 &p_position, const Vector3 &p_dir); + bool is_low_end() const; + RendererSceneRenderRD(RendererStorageRD *p_storage); ~RendererSceneRenderRD(); }; diff --git a/servers/rendering/renderer_rd/shader_rd.cpp b/servers/rendering/renderer_rd/shader_rd.cpp index bf7ec54b9c..41126218ae 100644 --- a/servers/rendering/renderer_rd/shader_rd.cpp +++ b/servers/rendering/renderer_rd/shader_rd.cpp @@ -199,6 +199,10 @@ void ShaderRD::_clear_version(Version *p_version) { } void ShaderRD::_compile_variant(uint32_t p_variant, Version *p_version) { + if (!variants_enabled[p_variant]) { + return; //variant is disabled, return + } + Vector stages; String error; @@ -365,6 +369,9 @@ void ShaderRD::_compile_version(Version *p_version) { bool all_valid = true; for (int i = 0; i < variant_defines.size(); i++) { + if (!variants_enabled[i]) { + continue; //disabled + } if (p_version->variants[i].is_null()) { all_valid = false; break; @@ -374,6 +381,9 @@ void ShaderRD::_compile_version(Version *p_version) { if (!all_valid) { //clear versions if they exist for (int i = 0; i < variant_defines.size(); i++) { + if (!variants_enabled[i]) { + continue; //disabled + } if (!p_version->variants[i].is_null()) { RD::get_singleton()->free(p_version->variants[i]); } @@ -454,12 +464,26 @@ bool ShaderRD::version_free(RID p_version) { return true; } +void ShaderRD::set_variant_enabled(int p_variant, bool p_enabled) { + ERR_FAIL_COND(version_owner.get_rid_count() > 0); //versions exist + ERR_FAIL_INDEX(p_variant, variants_enabled.size()); + variants_enabled.write[p_variant] = p_enabled; +} + +bool ShaderRD::is_variant_enabled(int p_variant) const { + ERR_FAIL_INDEX_V(p_variant, variants_enabled.size(), false); + return variants_enabled[p_variant]; +} + void ShaderRD::initialize(const Vector &p_variant_defines, const String &p_general_defines) { ERR_FAIL_COND(variant_defines.size()); ERR_FAIL_COND(p_variant_defines.size() == 0); + general_defines = p_general_defines.utf8(); + for (int i = 0; i < p_variant_defines.size(); i++) { variant_defines.push_back(p_variant_defines[i].utf8()); + variants_enabled.push_back(true); } } diff --git a/servers/rendering/renderer_rd/shader_rd.h b/servers/rendering/renderer_rd/shader_rd.h index 0c379db6f2..05e07d3cf3 100644 --- a/servers/rendering/renderer_rd/shader_rd.h +++ b/servers/rendering/renderer_rd/shader_rd.h @@ -46,6 +46,7 @@ class ShaderRD { //versions CharString general_defines; Vector variant_defines; + Vector variants_enabled; struct Version { CharString uniforms; @@ -109,6 +110,7 @@ public: _FORCE_INLINE_ RID version_get_shader(RID p_version, int p_variant) { ERR_FAIL_INDEX_V(p_variant, variant_defines.size(), RID()); + ERR_FAIL_COND_V(!variants_enabled[p_variant], RID()); Version *version = version_owner.getornull(p_version); ERR_FAIL_COND_V(!version, RID()); @@ -128,6 +130,9 @@ public: bool version_free(RID p_version); + void set_variant_enabled(int p_variant, bool p_enabled); + bool is_variant_enabled(int p_variant) const; + void initialize(const Vector &p_variant_defines, const String &p_general_defines = ""); virtual ~ShaderRD(); }; diff --git a/servers/rendering/renderer_rd/shaders/SCsub b/servers/rendering/renderer_rd/shaders/SCsub index 4cddf0f685..1fe43b25f6 100644 --- a/servers/rendering/renderer_rd/shaders/SCsub +++ b/servers/rendering/renderer_rd/shaders/SCsub @@ -11,7 +11,7 @@ if "RD_GLSL" in env["BUILDERS"]: env.RD_GLSL("cubemap_roughness.glsl") env.RD_GLSL("cubemap_downsampler.glsl") env.RD_GLSL("cubemap_filter.glsl") - env.RD_GLSL("scene_high_end.glsl") + env.RD_GLSL("scene_forward.glsl") env.RD_GLSL("sky.glsl") env.RD_GLSL("tonemap.glsl") env.RD_GLSL("cube_to_dp.glsl") diff --git a/servers/rendering/renderer_rd/shaders/scene_forward.glsl b/servers/rendering/renderer_rd/shaders/scene_forward.glsl new file mode 100644 index 0000000000..5b01cb1f82 --- /dev/null +++ b/servers/rendering/renderer_rd/shaders/scene_forward.glsl @@ -0,0 +1,2905 @@ +#[vertex] + +#version 450 + +VERSION_DEFINES + +#include "scene_forward_inc.glsl" + +/* INPUT ATTRIBS */ + +layout(location = 0) in vec3 vertex_attrib; +layout(location = 1) in vec3 normal_attrib; +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) +layout(location = 2) in vec4 tangent_attrib; +#endif + +#if defined(COLOR_USED) +layout(location = 3) in vec4 color_attrib; +#endif + +layout(location = 4) in vec2 uv_attrib; + +#if defined(UV2_USED) || defined(USE_LIGHTMAP) || defined(MODE_RENDER_MATERIAL) +layout(location = 5) in vec2 uv2_attrib; +#endif + +#if defined(CUSTOM0_USED) +layout(location = 6) in vec4 custom0_attrib; +#endif + +#if defined(CUSTOM1_USED) +layout(location = 7) in vec4 custom1_attrib; +#endif + +#if defined(CUSTOM2_USED) +layout(location = 8) in vec4 custom2_attrib; +#endif + +#if defined(CUSTOM3_USED) +layout(location = 9) in vec4 custom3_attrib; +#endif + +#if defined(BONES_USED) +layout(location = 10) in uvec4 bone_attrib; +#endif + +#if defined(WEIGHTS_USED) +layout(location = 11) in vec4 weight_attrib; +#endif + +/* Varyings */ + +layout(location = 0) out vec3 vertex_interp; +layout(location = 1) out vec3 normal_interp; + +#if defined(COLOR_USED) +layout(location = 2) out vec4 color_interp; +#endif + +layout(location = 3) out vec2 uv_interp; + +#if defined(UV2_USED) || defined(USE_LIGHTMAP) +layout(location = 4) out vec2 uv2_interp; +#endif + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) +layout(location = 5) out vec3 tangent_interp; +layout(location = 6) out vec3 binormal_interp; +#endif + +#ifdef USE_MATERIAL_UNIFORMS +layout(set = MATERIAL_UNIFORM_SET, binding = 0, std140) uniform MaterialUniforms{ + /* clang-format off */ +MATERIAL_UNIFORMS + /* clang-format on */ +} material; +#endif + +/* clang-format off */ + +VERTEX_SHADER_GLOBALS + +/* clang-format on */ + +invariant gl_Position; + +layout(location = 7) flat out uint instance_index; + +#ifdef MODE_DUAL_PARABOLOID + +layout(location = 8) out float dp_clip; + +#endif + +void main() { + instance_index = draw_call.instance_index; + vec4 instance_custom = vec4(0.0); +#if defined(COLOR_USED) + color_interp = color_attrib; +#endif + + mat4 world_matrix = instances.data[instance_index].transform; + mat3 world_normal_matrix = mat3(instances.data[instance_index].normal_transform); + + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH)) { + //multimesh, instances are for it + uint offset = (instances.data[instance_index].flags >> INSTANCE_FLAGS_MULTIMESH_STRIDE_SHIFT) & INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK; + offset *= gl_InstanceIndex; + + mat4 matrix; + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_FORMAT_2D)) { + matrix = mat4(transforms.data[offset + 0], transforms.data[offset + 1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0)); + offset += 2; + } else { + matrix = mat4(transforms.data[offset + 0], transforms.data[offset + 1], transforms.data[offset + 2], vec4(0.0, 0.0, 0.0, 1.0)); + offset += 3; + } + + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_HAS_COLOR)) { +#ifdef COLOR_USED + color_interp *= transforms.data[offset]; +#endif + offset += 1; + } + + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_HAS_CUSTOM_DATA)) { + instance_custom = transforms.data[offset]; + } + + //transpose + matrix = transpose(matrix); + world_matrix = world_matrix * matrix; + world_normal_matrix = world_normal_matrix * mat3(matrix); + + } else { + //not a multimesh, instances are for multiple draw calls + instance_index += gl_InstanceIndex; + } + + vec3 vertex = vertex_attrib; + vec3 normal = normal_attrib * 2.0 - 1.0; + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + vec3 tangent = tangent_attrib.xyz * 2.0 - 1.0; + float binormalf = tangent_attrib.a * 2.0 - 1.0; + vec3 binormal = normalize(cross(normal, tangent) * binormalf); +#endif + +#if 0 + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_SKELETON)) { + //multimesh, instances are for it + + uvec2 bones_01 = uvec2(bone_attrib.x & 0xFFFF, bone_attrib.x >> 16) * 3; + uvec2 bones_23 = uvec2(bone_attrib.y & 0xFFFF, bone_attrib.y >> 16) * 3; + vec2 weights_01 = unpackUnorm2x16(bone_attrib.z); + vec2 weights_23 = unpackUnorm2x16(bone_attrib.w); + + mat4 m = mat4(transforms.data[bones_01.x], transforms.data[bones_01.x + 1], transforms.data[bones_01.x + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_01.x; + m += mat4(transforms.data[bones_01.y], transforms.data[bones_01.y + 1], transforms.data[bones_01.y + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_01.y; + m += mat4(transforms.data[bones_23.x], transforms.data[bones_23.x + 1], transforms.data[bones_23.x + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_23.x; + m += mat4(transforms.data[bones_23.y], transforms.data[bones_23.y + 1], transforms.data[bones_23.y + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_23.y; + + //reverse order because its transposed + vertex = (vec4(vertex, 1.0) * m).xyz; + normal = (vec4(normal, 0.0) * m).xyz; + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + + tangent = (vec4(tangent, 0.0) * m).xyz; + binormal = (vec4(binormal, 0.0) * m).xyz; +#endif + } +#endif + uv_interp = uv_attrib; + +#if defined(UV2_USED) || defined(USE_LIGHTMAP) + uv2_interp = uv2_attrib; +#endif + +#ifdef USE_OVERRIDE_POSITION + vec4 position; +#endif + + mat4 projection_matrix = scene_data.projection_matrix; + +//using world coordinates +#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) + + vertex = (world_matrix * vec4(vertex, 1.0)).xyz; + + normal = world_normal_matrix * normal; + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + + tangent = world_normal_matrix * tangent; + binormal = world_normal_matrix * binormal; + +#endif +#endif + + float roughness = 1.0; + + mat4 modelview = scene_data.inv_camera_matrix * world_matrix; + mat3 modelview_normal = mat3(scene_data.inv_camera_matrix) * world_normal_matrix; + + { + /* clang-format off */ + +VERTEX_SHADER_CODE + + /* clang-format on */ + } + +// using local coordinates (default) +#if !defined(SKIP_TRANSFORM_USED) && !defined(VERTEX_WORLD_COORDS_USED) + + vertex = (modelview * vec4(vertex, 1.0)).xyz; + normal = modelview_normal * normal; +#endif + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + + binormal = modelview_normal * binormal; + tangent = modelview_normal * tangent; +#endif + +//using world coordinates +#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) + + vertex = (scene_data.inv_camera_matrix * vec4(vertex, 1.0)).xyz; + normal = mat3(scene_data.inverse_normal_matrix) * normal; + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + + binormal = mat3(scene_data.camera_inverse_binormal_matrix) * binormal; + tangent = mat3(scene_data.camera_inverse_tangent_matrix) * tangent; +#endif +#endif + + vertex_interp = vertex; + normal_interp = normal; + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + tangent_interp = tangent; + binormal_interp = binormal; +#endif + +#ifdef MODE_RENDER_DEPTH + +#ifdef MODE_DUAL_PARABOLOID + + vertex_interp.z *= scene_data.dual_paraboloid_side; + normal_interp.z *= scene_data.dual_paraboloid_side; + + dp_clip = vertex_interp.z; //this attempts to avoid noise caused by objects sent to the other parabolloid side due to bias + + //for dual paraboloid shadow mapping, this is the fastest but least correct way, as it curves straight edges + + vec3 vtx = vertex_interp; + float distance = length(vtx); + vtx = normalize(vtx); + vtx.xy /= 1.0 - vtx.z; + vtx.z = (distance / scene_data.z_far); + vtx.z = vtx.z * 2.0 - 1.0; + vertex_interp = vtx; + +#endif + +#endif //MODE_RENDER_DEPTH + +#ifdef USE_OVERRIDE_POSITION + gl_Position = position; +#else + gl_Position = projection_matrix * vec4(vertex_interp, 1.0); +#endif + +#ifdef MODE_RENDER_DEPTH + if (scene_data.pancake_shadows) { + if (gl_Position.z <= 0.00001) { + gl_Position.z = 0.00001; + } + } +#endif +#ifdef MODE_RENDER_MATERIAL + if (scene_data.material_uv2_mode) { + gl_Position.xy = (uv2_attrib.xy + draw_call.bake_uv2_offset) * 2.0 - 1.0; + gl_Position.z = 0.00001; + gl_Position.w = 1.0; + } +#endif +} + +#[fragment] + +#version 450 + +VERSION_DEFINES + +#include "scene_forward_inc.glsl" + +/* Varyings */ + +layout(location = 0) in vec3 vertex_interp; +layout(location = 1) in vec3 normal_interp; + +#if defined(COLOR_USED) +layout(location = 2) in vec4 color_interp; +#endif + +layout(location = 3) in vec2 uv_interp; + +#if defined(UV2_USED) || defined(USE_LIGHTMAP) +layout(location = 4) in vec2 uv2_interp; +#endif + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) +layout(location = 5) in vec3 tangent_interp; +layout(location = 6) in vec3 binormal_interp; +#endif + +layout(location = 7) flat in uint instance_index; + +#ifdef MODE_DUAL_PARABOLOID + +layout(location = 8) in float dp_clip; + +#endif + +//defines to keep compatibility with vertex + +#define world_matrix instances.data[instance_index].transform +#define world_normal_matrix instances.data[instance_index].normal_transform +#define projection_matrix scene_data.projection_matrix + +#if defined(ENABLE_SSS) && defined(ENABLE_TRANSMITTANCE) +//both required for transmittance to be enabled +#define LIGHT_TRANSMITTANCE_USED +#endif + +#ifdef USE_MATERIAL_UNIFORMS +layout(set = MATERIAL_UNIFORM_SET, binding = 0, std140) uniform MaterialUniforms{ + /* clang-format off */ +MATERIAL_UNIFORMS + /* clang-format on */ +} material; +#endif + +/* clang-format off */ + +FRAGMENT_SHADER_GLOBALS + +/* clang-format on */ + +#ifdef MODE_RENDER_DEPTH + +#ifdef MODE_RENDER_MATERIAL + +layout(location = 0) out vec4 albedo_output_buffer; +layout(location = 1) out vec4 normal_output_buffer; +layout(location = 2) out vec4 orm_output_buffer; +layout(location = 3) out vec4 emission_output_buffer; +layout(location = 4) out float depth_output_buffer; + +#endif + +#ifdef MODE_RENDER_NORMAL_ROUGHNESS +layout(location = 0) out vec4 normal_roughness_output_buffer; + +#ifdef MODE_RENDER_GIPROBE +layout(location = 1) out uvec2 giprobe_buffer; +#endif + +#endif //MODE_RENDER_NORMAL +#else // RENDER DEPTH + +#ifdef MODE_MULTIPLE_RENDER_TARGETS + +layout(location = 0) out vec4 diffuse_buffer; //diffuse (rgb) and roughness +layout(location = 1) out vec4 specular_buffer; //specular and SSS (subsurface scatter) +#else + +layout(location = 0) out vec4 frag_color; +#endif + +#endif // RENDER DEPTH + +#ifdef ALPHA_HASH_USED + +float hash_2d(vec2 p) { + return fract(1.0e4 * sin(17.0 * p.x + 0.1 * p.y) * + (0.1 + abs(sin(13.0 * p.y + p.x)))); +} + +float hash_3d(vec3 p) { + return hash_2d(vec2(hash_2d(p.xy), p.z)); +} + +float compute_alpha_hash_threshold(vec3 pos, float hash_scale) { + vec3 dx = dFdx(pos); + vec3 dy = dFdx(pos); + float delta_max_sqr = max(length(dx), length(dy)); + float pix_scale = 1.0 / (hash_scale * delta_max_sqr); + + vec2 pix_scales = + vec2(exp2(floor(log2(pix_scale))), exp2(ceil(log2(pix_scale)))); + + vec2 a_thresh = vec2(hash_3d(floor(pix_scales.x * pos.xyz)), + hash_3d(floor(pix_scales.y * pos.xyz))); + + float lerp_factor = fract(log2(pix_scale)); + + float a_interp = (1.0 - lerp_factor) * a_thresh.x + lerp_factor * a_thresh.y; + + float min_lerp = min(lerp_factor, 1.0 - lerp_factor); + + vec3 cases = vec3(a_interp * a_interp / (2.0 * min_lerp * (1.0 - min_lerp)), + (a_interp - 0.5 * min_lerp) / (1.0 - min_lerp), + 1.0 - ((1.0 - a_interp) * (1.0 - a_interp) / + (2.0 * min_lerp * (1.0 - min_lerp)))); + + float alpha_hash_threshold = + (lerp_factor < (1.0 - min_lerp)) ? ((lerp_factor < min_lerp) ? cases.x : cases.y) : cases.z; + + return clamp(alpha_hash_threshold, 0.0, 1.0); +} + +#endif // ALPHA_HASH_USED + +#ifdef ALPHA_ANTIALIASING_EDGE_USED + +float calc_mip_level(vec2 texture_coord) { + vec2 dx = dFdx(texture_coord); + vec2 dy = dFdy(texture_coord); + float delta_max_sqr = max(dot(dx, dx), dot(dy, dy)); + return max(0.0, 0.5 * log2(delta_max_sqr)); +} + +float compute_alpha_antialiasing_edge(float input_alpha, vec2 texture_coord, float alpha_edge) { + input_alpha *= 1.0 + max(0, calc_mip_level(texture_coord)) * 0.25; // 0.25 mip scale, magic number + input_alpha = (input_alpha - alpha_edge) / max(fwidth(input_alpha), 0.0001) + 0.5; + return clamp(input_alpha, 0.0, 1.0); +} + +#endif // ALPHA_ANTIALIASING_USED + +// This returns the G_GGX function divided by 2 cos_theta_m, where in practice cos_theta_m is either N.L or N.V. +// We're dividing this factor off because the overall term we'll end up looks like +// (see, for example, the first unnumbered equation in B. Burley, "Physically Based Shading at Disney", SIGGRAPH 2012): +// +// F(L.V) D(N.H) G(N.L) G(N.V) / (4 N.L N.V) +// +// We're basically regouping this as +// +// F(L.V) D(N.H) [G(N.L)/(2 N.L)] [G(N.V) / (2 N.V)] +// +// and thus, this function implements the [G(N.m)/(2 N.m)] part with m = L or V. +// +// The contents of the D and G (G1) functions (GGX) are taken from +// E. Heitz, "Understanding the Masking-Shadowing Function in Microfacet-Based BRDFs", J. Comp. Graph. Tech. 3 (2) (2014). +// Eqns 71-72 and 85-86 (see also Eqns 43 and 80). + +#if !defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) + +float G_GGX_2cos(float cos_theta_m, float alpha) { + // Schlick's approximation + // C. Schlick, "An Inexpensive BRDF Model for Physically-based Rendering", Computer Graphics Forum. 13 (3): 233 (1994) + // Eq. (19), although see Heitz (2014) the about the problems with his derivation. + // It nevertheless approximates GGX well with k = alpha/2. + float k = 0.5 * alpha; + return 0.5 / (cos_theta_m * (1.0 - k) + k); + + // float cos2 = cos_theta_m * cos_theta_m; + // float sin2 = (1.0 - cos2); + // return 1.0 / (cos_theta_m + sqrt(cos2 + alpha * alpha * sin2)); +} + +float D_GGX(float cos_theta_m, float alpha) { + float alpha2 = alpha * alpha; + float d = 1.0 + (alpha2 - 1.0) * cos_theta_m * cos_theta_m; + return alpha2 / (M_PI * d * d); +} + +float G_GGX_anisotropic_2cos(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { + float cos2 = cos_theta_m * cos_theta_m; + float sin2 = (1.0 - cos2); + float s_x = alpha_x * cos_phi; + float s_y = alpha_y * sin_phi; + return 1.0 / max(cos_theta_m + sqrt(cos2 + (s_x * s_x + s_y * s_y) * sin2), 0.001); +} + +float D_GGX_anisotropic(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { + float cos2 = cos_theta_m * cos_theta_m; + float sin2 = (1.0 - cos2); + float r_x = cos_phi / alpha_x; + float r_y = sin_phi / alpha_y; + float d = cos2 + sin2 * (r_x * r_x + r_y * r_y); + return 1.0 / max(M_PI * alpha_x * alpha_y * d * d, 0.001); +} + +float SchlickFresnel(float u) { + float m = 1.0 - u; + float m2 = m * m; + return m2 * m2 * m; // pow(m,5) +} + +float GTR1(float NdotH, float a) { + if (a >= 1.0) + return 1.0 / M_PI; + float a2 = a * a; + float t = 1.0 + (a2 - 1.0) * NdotH * NdotH; + return (a2 - 1.0) / (M_PI * log(a2) * t); +} + +vec3 F0(float metallic, float specular, vec3 albedo) { + float dielectric = 0.16 * specular * specular; + // use albedo * metallic as colored specular reflectance at 0 angle for metallic materials; + // see https://google.github.io/filament/Filament.md.html + return mix(vec3(dielectric), albedo, vec3(metallic)); +} + +void light_compute(vec3 N, vec3 L, vec3 V, float A, vec3 light_color, float attenuation, vec3 shadow_attenuation, vec3 diffuse_color, float roughness, float metallic, float specular, float specular_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + vec3 backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + vec4 transmittance_color, + float transmittance_depth, + float transmittance_curve, + float transmittance_boost, + float transmittance_z, +#endif +#ifdef LIGHT_RIM_USED + float rim, float rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + float clearcoat, float clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + vec3 B, vec3 T, float anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + inout float alpha, +#endif + inout vec3 diffuse_light, inout vec3 specular_light) { + +#if defined(USE_LIGHT_SHADER_CODE) + // light is written by the light shader + + vec3 normal = N; + vec3 albedo = diffuse_color; + vec3 light = L; + vec3 view = V; + + /* clang-format off */ + +LIGHT_SHADER_CODE + + /* clang-format on */ + +#else + float NdotL = min(A + dot(N, L), 1.0); + float cNdotL = max(NdotL, 0.0); // clamped NdotL + float NdotV = dot(N, V); + float cNdotV = max(NdotV, 0.0); + +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) + vec3 H = normalize(V + L); +#endif + +#if defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) + float cNdotH = clamp(A + dot(N, H), 0.0, 1.0); +#endif + +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) + float cLdotH = clamp(A + dot(L, H), 0.0, 1.0); +#endif + + if (metallic < 1.0) { +#if defined(DIFFUSE_OREN_NAYAR) + vec3 diffuse_brdf_NL; +#else + float diffuse_brdf_NL; // BRDF times N.L for calculating diffuse radiance +#endif + +#if defined(DIFFUSE_LAMBERT_WRAP) + // energy conserving lambert wrap shader + diffuse_brdf_NL = max(0.0, (NdotL + roughness) / ((1.0 + roughness) * (1.0 + roughness))); + +#elif defined(DIFFUSE_OREN_NAYAR) + + { + // see http://mimosa-pudica.net/improved-oren-nayar.html + float LdotV = dot(L, V); + + float s = LdotV - NdotL * NdotV; + float t = mix(1.0, max(NdotL, NdotV), step(0.0, s)); + + float sigma2 = roughness * roughness; // TODO: this needs checking + vec3 A = 1.0 + sigma2 * (-0.5 / (sigma2 + 0.33) + 0.17 * diffuse_color / (sigma2 + 0.13)); + float B = 0.45 * sigma2 / (sigma2 + 0.09); + + diffuse_brdf_NL = cNdotL * (A + vec3(B) * s / t) * (1.0 / M_PI); + } + +#elif defined(DIFFUSE_TOON) + + diffuse_brdf_NL = smoothstep(-roughness, max(roughness, 0.01), NdotL); + +#elif defined(DIFFUSE_BURLEY) + + { + float FD90_minus_1 = 2.0 * cLdotH * cLdotH * roughness - 0.5; + float FdV = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotV); + float FdL = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotL); + diffuse_brdf_NL = (1.0 / M_PI) * FdV * FdL * cNdotL; + /* + float energyBias = mix(roughness, 0.0, 0.5); + float energyFactor = mix(roughness, 1.0, 1.0 / 1.51); + float fd90 = energyBias + 2.0 * VoH * VoH * roughness; + float f0 = 1.0; + float lightScatter = f0 + (fd90 - f0) * pow(1.0 - cNdotL, 5.0); + float viewScatter = f0 + (fd90 - f0) * pow(1.0 - cNdotV, 5.0); + + diffuse_brdf_NL = lightScatter * viewScatter * energyFactor; + */ + } +#else + // lambert + diffuse_brdf_NL = cNdotL * (1.0 / M_PI); +#endif + + diffuse_light += light_color * diffuse_color * shadow_attenuation * diffuse_brdf_NL * attenuation; + +#if defined(LIGHT_BACKLIGHT_USED) + diffuse_light += light_color * diffuse_color * (vec3(1.0 / M_PI) - diffuse_brdf_NL) * backlight * attenuation; +#endif + +#if defined(LIGHT_RIM_USED) + float rim_light = pow(max(0.0, 1.0 - cNdotV), max(0.0, (1.0 - roughness) * 16.0)); + diffuse_light += rim_light * rim * mix(vec3(1.0), diffuse_color, rim_tint) * light_color; +#endif + +#ifdef LIGHT_TRANSMITTANCE_USED + +#ifdef SSS_MODE_SKIN + + { + float scale = 8.25 / transmittance_depth; + float d = scale * abs(transmittance_z); + float dd = -d * d; + vec3 profile = vec3(0.233, 0.455, 0.649) * exp(dd / 0.0064) + + vec3(0.1, 0.336, 0.344) * exp(dd / 0.0484) + + vec3(0.118, 0.198, 0.0) * exp(dd / 0.187) + + vec3(0.113, 0.007, 0.007) * exp(dd / 0.567) + + vec3(0.358, 0.004, 0.0) * exp(dd / 1.99) + + vec3(0.078, 0.0, 0.0) * exp(dd / 7.41); + + diffuse_light += profile * transmittance_color.a * diffuse_color * light_color * clamp(transmittance_boost - NdotL, 0.0, 1.0) * (1.0 / M_PI) * attenuation; + } +#else + + if (transmittance_depth > 0.0) { + float fade = clamp(abs(transmittance_z / transmittance_depth), 0.0, 1.0); + + fade = pow(max(0.0, 1.0 - fade), transmittance_curve); + fade *= clamp(transmittance_boost - NdotL, 0.0, 1.0); + + diffuse_light += diffuse_color * transmittance_color.rgb * light_color * (1.0 / M_PI) * transmittance_color.a * fade * attenuation; + } + +#endif //SSS_MODE_SKIN + +#endif //LIGHT_TRANSMITTANCE_USED + } + + if (roughness > 0.0) { // FIXME: roughness == 0 should not disable specular light entirely + + // D + +#if defined(SPECULAR_BLINN) + + //normalized blinn + float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; + float blinn = pow(cNdotH, shininess) * cNdotL; + blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); + float intensity = blinn; + + specular_light += light_color * shadow_attenuation * intensity * specular_blob_intensity * attenuation; + +#elif defined(SPECULAR_PHONG) + + vec3 R = normalize(-reflect(L, N)); + float cRdotV = clamp(A + dot(R, V), 0.0, 1.0); + float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; + float phong = pow(cRdotV, shininess); + phong *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); + float intensity = (phong) / max(4.0 * cNdotV * cNdotL, 0.75); + + specular_light += light_color * shadow_attenuation * intensity * specular_blob_intensity * attenuation; + +#elif defined(SPECULAR_TOON) + + vec3 R = normalize(-reflect(L, N)); + float RdotV = dot(R, V); + float mid = 1.0 - roughness; + mid *= mid; + float intensity = smoothstep(mid - roughness * 0.5, mid + roughness * 0.5, RdotV) * mid; + diffuse_light += light_color * shadow_attenuation * intensity * specular_blob_intensity * attenuation; // write to diffuse_light, as in toon shading you generally want no reflection + +#elif defined(SPECULAR_DISABLED) + // none.. + +#elif defined(SPECULAR_SCHLICK_GGX) + // shlick+ggx as default + +#if defined(LIGHT_ANISOTROPY_USED) + + float alpha_ggx = roughness * roughness; + float aspect = sqrt(1.0 - anisotropy * 0.9); + float ax = alpha_ggx / aspect; + float ay = alpha_ggx * aspect; + float XdotH = dot(T, H); + float YdotH = dot(B, H); + float D = D_GGX_anisotropic(cNdotH, ax, ay, XdotH, YdotH); + float G = G_GGX_anisotropic_2cos(cNdotL, ax, ay, XdotH, YdotH) * G_GGX_anisotropic_2cos(cNdotV, ax, ay, XdotH, YdotH); + +#else + float alpha_ggx = roughness * roughness; + float D = D_GGX(cNdotH, alpha_ggx); + float G = G_GGX_2cos(cNdotL, alpha_ggx) * G_GGX_2cos(cNdotV, alpha_ggx); +#endif + // F + vec3 f0 = F0(metallic, specular, diffuse_color); + float cLdotH5 = SchlickFresnel(cLdotH); + vec3 F = mix(vec3(cLdotH5), vec3(1.0), f0); + + vec3 specular_brdf_NL = cNdotL * D * F * G; + + specular_light += specular_brdf_NL * light_color * shadow_attenuation * specular_blob_intensity * attenuation; +#endif + +#if defined(LIGHT_CLEARCOAT_USED) + +#if !defined(SPECULAR_SCHLICK_GGX) + float cLdotH5 = SchlickFresnel(cLdotH); +#endif + float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_gloss)); + float Fr = mix(.04, 1.0, cLdotH5); + float Gr = G_GGX_2cos(cNdotL, .25) * G_GGX_2cos(cNdotV, .25); + + float clearcoat_specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; + + specular_light += clearcoat_specular_brdf_NL * light_color * shadow_attenuation * specular_blob_intensity * attenuation; +#endif + } + +#ifdef USE_SHADOW_TO_OPACITY + alpha = min(alpha, clamp(1.0 - length(shadow_attenuation * attenuation), 0.0, 1.0)); +#endif + +#endif //defined(USE_LIGHT_SHADER_CODE) +} + +#ifndef USE_NO_SHADOWS + +// Produces cheap white noise, optimized for window-space +// Comes from: https://www.shadertoy.com/view/4djSRW +// Copyright: Dave Hoskins, MIT License +float quick_hash(vec2 pos) { + vec3 p3 = fract(vec3(pos.xyx) * .1031); + p3 += dot(p3, p3.yzx + 33.33); + return fract((p3.x + p3.y) * p3.z); +} + +float sample_directional_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, vec4 coord) { + vec2 pos = coord.xy; + float depth = coord.z; + + //if only one sample is taken, take it from the center + if (scene_data.directional_soft_shadow_samples == 1) { + return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0)); + } + + mat2 disk_rotation; + { + float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; + float sr = sin(r); + float cr = cos(r); + disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); + } + + float avg = 0.0; + + for (uint i = 0; i < scene_data.directional_soft_shadow_samples; i++) { + avg += textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos + shadow_pixel_size * (disk_rotation * scene_data.directional_soft_shadow_kernel[i].xy), depth, 1.0)); + } + + return avg * (1.0 / float(scene_data.directional_soft_shadow_samples)); +} + +float sample_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, vec4 coord) { + vec2 pos = coord.xy; + float depth = coord.z; + + //if only one sample is taken, take it from the center + if (scene_data.soft_shadow_samples == 1) { + return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0)); + } + + mat2 disk_rotation; + { + float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; + float sr = sin(r); + float cr = cos(r); + disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); + } + + float avg = 0.0; + + for (uint i = 0; i < scene_data.soft_shadow_samples; i++) { + avg += textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos + shadow_pixel_size * (disk_rotation * scene_data.soft_shadow_kernel[i].xy), depth, 1.0)); + } + + return avg * (1.0 / float(scene_data.soft_shadow_samples)); +} + +float sample_directional_soft_shadow(texture2D shadow, vec3 pssm_coord, vec2 tex_scale) { + //find blocker + float blocker_count = 0.0; + float blocker_average = 0.0; + + mat2 disk_rotation; + { + float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; + float sr = sin(r); + float cr = cos(r); + disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); + } + + for (uint i = 0; i < scene_data.directional_penumbra_shadow_samples; i++) { + vec2 suv = pssm_coord.xy + (disk_rotation * scene_data.directional_penumbra_shadow_kernel[i].xy) * tex_scale; + float d = textureLod(sampler2D(shadow, material_samplers[SAMPLER_LINEAR_CLAMP]), suv, 0.0).r; + if (d < pssm_coord.z) { + blocker_average += d; + blocker_count += 1.0; + } + } + + if (blocker_count > 0.0) { + //blockers found, do soft shadow + blocker_average /= blocker_count; + float penumbra = (pssm_coord.z - blocker_average) / blocker_average; + tex_scale *= penumbra; + + float s = 0.0; + for (uint i = 0; i < scene_data.directional_penumbra_shadow_samples; i++) { + vec2 suv = pssm_coord.xy + (disk_rotation * scene_data.directional_penumbra_shadow_kernel[i].xy) * tex_scale; + s += textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(suv, pssm_coord.z, 1.0)); + } + + return s / float(scene_data.directional_penumbra_shadow_samples); + + } else { + //no blockers found, so no shadow + return 1.0; + } +} + +#endif //USE_NO_SHADOWS + +void light_process_omni(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 vertex_ddx, vec3 vertex_ddy, vec3 albedo, float roughness, float metallic, float specular, float p_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + vec3 backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + vec4 transmittance_color, + float transmittance_depth, + float transmittance_curve, + float transmittance_boost, +#endif +#ifdef LIGHT_RIM_USED + float rim, float rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + float clearcoat, float clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + vec3 binormal, vec3 tangent, float anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + inout float alpha, +#endif + inout vec3 diffuse_light, inout vec3 specular_light) { + vec3 light_rel_vec = lights.data[idx].position - vertex; + float light_length = length(light_rel_vec); + float normalized_distance = light_length * lights.data[idx].inv_radius; + vec2 attenuation_energy = unpackHalf2x16(lights.data[idx].attenuation_energy); + float omni_attenuation = pow(max(1.0 - normalized_distance, 0.0), attenuation_energy.x); + float light_attenuation = omni_attenuation; + vec3 shadow_attenuation = vec3(1.0); + vec4 color_specular = unpackUnorm4x8(lights.data[idx].color_specular); + color_specular.rgb *= attenuation_energy.y; + float size_A = 0.0; + + if (lights.data[idx].size > 0.0) { + float t = lights.data[idx].size / max(0.001, light_length); + size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); + } + +#ifdef LIGHT_TRANSMITTANCE_USED + float transmittance_z = transmittance_depth; //no transmittance by default +#endif + +#ifndef USE_NO_SHADOWS + vec4 shadow_color_enabled = unpackUnorm4x8(lights.data[idx].shadow_color_enabled); + if (shadow_color_enabled.w > 0.5) { + // there is a shadowmap + + vec4 v = vec4(vertex, 1.0); + + vec4 splane = (lights.data[idx].shadow_matrix * v); + float shadow_len = length(splane.xyz); //need to remember shadow len from here + + { + vec3 nofs = normal_interp * lights.data[idx].shadow_normal_bias / lights.data[idx].inv_radius; + nofs *= (1.0 - max(0.0, dot(normalize(light_rel_vec), normalize(normal_interp)))); + v.xyz += nofs; + splane = (lights.data[idx].shadow_matrix * v); + } + + float shadow; + + if (lights.data[idx].soft_shadow_size > 0.0) { + //soft shadow + + //find blocker + + float blocker_count = 0.0; + float blocker_average = 0.0; + + mat2 disk_rotation; + { + float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; + float sr = sin(r); + float cr = cos(r); + disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); + } + + vec3 normal = normalize(splane.xyz); + vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0); + vec3 tangent = normalize(cross(v0, normal)); + vec3 bitangent = normalize(cross(tangent, normal)); + float z_norm = shadow_len * lights.data[idx].inv_radius; + + tangent *= lights.data[idx].soft_shadow_size * lights.data[idx].soft_shadow_scale; + bitangent *= lights.data[idx].soft_shadow_size * lights.data[idx].soft_shadow_scale; + + for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { + vec2 disk = disk_rotation * scene_data.penumbra_shadow_kernel[i].xy; + + vec3 pos = splane.xyz + tangent * disk.x + bitangent * disk.y; + + pos = normalize(pos); + vec4 uv_rect = lights.data[idx].atlas_rect; + + if (pos.z >= 0.0) { + pos.z += 1.0; + uv_rect.y += uv_rect.w; + } else { + pos.z = 1.0 - pos.z; + } + + pos.xy /= pos.z; + + pos.xy = pos.xy * 0.5 + 0.5; + pos.xy = uv_rect.xy + pos.xy * uv_rect.zw; + + float d = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), pos.xy, 0.0).r; + if (d < z_norm) { + blocker_average += d; + blocker_count += 1.0; + } + } + + if (blocker_count > 0.0) { + //blockers found, do soft shadow + blocker_average /= blocker_count; + float penumbra = (z_norm - blocker_average) / blocker_average; + tangent *= penumbra; + bitangent *= penumbra; + + z_norm -= lights.data[idx].inv_radius * lights.data[idx].shadow_bias; + + shadow = 0.0; + for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { + vec2 disk = disk_rotation * scene_data.penumbra_shadow_kernel[i].xy; + vec3 pos = splane.xyz + tangent * disk.x + bitangent * disk.y; + + pos = normalize(pos); + vec4 uv_rect = lights.data[idx].atlas_rect; + + if (pos.z >= 0.0) { + pos.z += 1.0; + uv_rect.y += uv_rect.w; + } else { + pos.z = 1.0 - pos.z; + } + + pos.xy /= pos.z; + + pos.xy = pos.xy * 0.5 + 0.5; + pos.xy = uv_rect.xy + pos.xy * uv_rect.zw; + shadow += textureProj(sampler2DShadow(shadow_atlas, shadow_sampler), vec4(pos.xy, z_norm, 1.0)); + } + + shadow /= float(scene_data.penumbra_shadow_samples); + + } else { + //no blockers found, so no shadow + shadow = 1.0; + } + } else { + splane.xyz = normalize(splane.xyz); + vec4 clamp_rect = lights.data[idx].atlas_rect; + + if (splane.z >= 0.0) { + splane.z += 1.0; + + clamp_rect.y += clamp_rect.w; + + } else { + splane.z = 1.0 - splane.z; + } + + splane.xy /= splane.z; + + splane.xy = splane.xy * 0.5 + 0.5; + splane.z = (shadow_len - lights.data[idx].shadow_bias) * lights.data[idx].inv_radius; + splane.xy = clamp_rect.xy + splane.xy * clamp_rect.zw; + splane.w = 1.0; //needed? i think it should be 1 already + shadow = sample_pcf_shadow(shadow_atlas, lights.data[idx].soft_shadow_scale * scene_data.shadow_atlas_pixel_size, splane); + } + +#ifdef LIGHT_TRANSMITTANCE_USED + { + vec4 clamp_rect = lights.data[idx].atlas_rect; + + //redo shadowmapping, but shrink the model a bit to avoid arctifacts + splane = (lights.data[idx].shadow_matrix * vec4(vertex - normalize(normal_interp) * lights.data[idx].transmittance_bias, 1.0)); + + shadow_len = length(splane.xyz); + splane = normalize(splane.xyz); + + if (splane.z >= 0.0) { + splane.z += 1.0; + + } else { + splane.z = 1.0 - splane.z; + } + + splane.xy /= splane.z; + splane.xy = splane.xy * 0.5 + 0.5; + splane.z = shadow_len * lights.data[idx].inv_radius; + splane.xy = clamp_rect.xy + splane.xy * clamp_rect.zw; + splane.w = 1.0; //needed? i think it should be 1 already + + float shadow_z = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), splane.xy, 0.0).r; + transmittance_z = (splane.z - shadow_z) / lights.data[idx].inv_radius; + } +#endif + + vec3 no_shadow = vec3(1.0); + + if (lights.data[idx].projector_rect != vec4(0.0)) { + vec3 local_v = (lights.data[idx].shadow_matrix * vec4(vertex, 1.0)).xyz; + local_v = normalize(local_v); + + vec4 atlas_rect = lights.data[idx].projector_rect; + + if (local_v.z >= 0.0) { + local_v.z += 1.0; + atlas_rect.y += atlas_rect.w; + + } else { + local_v.z = 1.0 - local_v.z; + } + + local_v.xy /= local_v.z; + local_v.xy = local_v.xy * 0.5 + 0.5; + vec2 proj_uv = local_v.xy * atlas_rect.zw; + + vec2 proj_uv_ddx; + vec2 proj_uv_ddy; + { + vec3 local_v_ddx = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddx, 1.0)).xyz; + local_v_ddx = normalize(local_v_ddx); + + if (local_v_ddx.z >= 0.0) { + local_v_ddx.z += 1.0; + } else { + local_v_ddx.z = 1.0 - local_v_ddx.z; + } + + local_v_ddx.xy /= local_v_ddx.z; + local_v_ddx.xy = local_v_ddx.xy * 0.5 + 0.5; + + proj_uv_ddx = local_v_ddx.xy * atlas_rect.zw - proj_uv; + + vec3 local_v_ddy = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddy, 1.0)).xyz; + local_v_ddy = normalize(local_v_ddy); + + if (local_v_ddy.z >= 0.0) { + local_v_ddy.z += 1.0; + } else { + local_v_ddy.z = 1.0 - local_v_ddy.z; + } + + local_v_ddy.xy /= local_v_ddy.z; + local_v_ddy.xy = local_v_ddy.xy * 0.5 + 0.5; + + proj_uv_ddy = local_v_ddy.xy * atlas_rect.zw - proj_uv; + } + + vec4 proj = textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), proj_uv + atlas_rect.xy, proj_uv_ddx, proj_uv_ddy); + no_shadow = mix(no_shadow, proj.rgb, proj.a); + } + + shadow_attenuation = mix(shadow_color_enabled.rgb, no_shadow, shadow); + } +#endif //USE_NO_SHADOWS + + light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color_specular.rgb, light_attenuation, shadow_attenuation, albedo, roughness, metallic, specular, color_specular.a * p_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + transmittance_color, + transmittance_depth, + transmittance_curve, + transmittance_boost, + transmittance_z, +#endif +#ifdef LIGHT_RIM_USED + rim * omni_attenuation, rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + binormal, tangent, anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + alpha, +#endif + diffuse_light, + specular_light); +} + +void light_process_spot(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 vertex_ddx, vec3 vertex_ddy, vec3 albedo, float roughness, float metallic, float specular, float p_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + vec3 backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + vec4 transmittance_color, + float transmittance_depth, + float transmittance_curve, + float transmittance_boost, +#endif +#ifdef LIGHT_RIM_USED + float rim, float rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + float clearcoat, float clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + vec3 binormal, vec3 tangent, float anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + inout float alpha, +#endif + inout vec3 diffuse_light, + inout vec3 specular_light) { + vec3 light_rel_vec = lights.data[idx].position - vertex; + float light_length = length(light_rel_vec); + float normalized_distance = light_length * lights.data[idx].inv_radius; + vec2 attenuation_energy = unpackHalf2x16(lights.data[idx].attenuation_energy); + float spot_attenuation = pow(max(1.0 - normalized_distance, 0.001), attenuation_energy.x); + vec3 spot_dir = lights.data[idx].direction; + vec2 spot_att_angle = unpackHalf2x16(lights.data[idx].cone_attenuation_angle); + float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_att_angle.y); + float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_att_angle.y)); + spot_attenuation *= 1.0 - pow(spot_rim, spot_att_angle.x); + float light_attenuation = spot_attenuation; + vec3 shadow_attenuation = vec3(1.0); + vec4 color_specular = unpackUnorm4x8(lights.data[idx].color_specular); + color_specular.rgb *= attenuation_energy.y; + + float size_A = 0.0; + + if (lights.data[idx].size > 0.0) { + float t = lights.data[idx].size / max(0.001, light_length); + size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); + } +/* + if (lights.data[idx].atlas_rect!=vec4(0.0)) { + //use projector texture + } + */ +#ifdef LIGHT_TRANSMITTANCE_USED + float transmittance_z = transmittance_depth; +#endif + +#ifndef USE_NO_SHADOWS + vec4 shadow_color_enabled = unpackUnorm4x8(lights.data[idx].shadow_color_enabled); + if (shadow_color_enabled.w > 0.5) { + //there is a shadowmap + vec4 v = vec4(vertex, 1.0); + + v.xyz -= spot_dir * lights.data[idx].shadow_bias; + + float z_norm = dot(spot_dir, -light_rel_vec) * lights.data[idx].inv_radius; + + float depth_bias_scale = 1.0 / (max(0.0001, z_norm)); //the closer to the light origin, the more you have to offset to reach 1px in the map + vec3 normal_bias = normalize(normal_interp) * (1.0 - max(0.0, dot(spot_dir, -normalize(normal_interp)))) * lights.data[idx].shadow_normal_bias * depth_bias_scale; + normal_bias -= spot_dir * dot(spot_dir, normal_bias); //only XY, no Z + v.xyz += normal_bias; + + //adjust with bias + z_norm = dot(spot_dir, v.xyz - lights.data[idx].position) * lights.data[idx].inv_radius; + + float shadow; + + vec4 splane = (lights.data[idx].shadow_matrix * v); + splane /= splane.w; + + if (lights.data[idx].soft_shadow_size > 0.0) { + //soft shadow + + //find blocker + + vec2 shadow_uv = splane.xy * lights.data[idx].atlas_rect.zw + lights.data[idx].atlas_rect.xy; + + float blocker_count = 0.0; + float blocker_average = 0.0; + + mat2 disk_rotation; + { + float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; + float sr = sin(r); + float cr = cos(r); + disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); + } + + float uv_size = lights.data[idx].soft_shadow_size * z_norm * lights.data[idx].soft_shadow_scale; + vec2 clamp_max = lights.data[idx].atlas_rect.xy + lights.data[idx].atlas_rect.zw; + for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { + vec2 suv = shadow_uv + (disk_rotation * scene_data.penumbra_shadow_kernel[i].xy) * uv_size; + suv = clamp(suv, lights.data[idx].atlas_rect.xy, clamp_max); + float d = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), suv, 0.0).r; + if (d < z_norm) { + blocker_average += d; + blocker_count += 1.0; + } + } + + if (blocker_count > 0.0) { + //blockers found, do soft shadow + blocker_average /= blocker_count; + float penumbra = (z_norm - blocker_average) / blocker_average; + uv_size *= penumbra; + + shadow = 0.0; + for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { + vec2 suv = shadow_uv + (disk_rotation * scene_data.penumbra_shadow_kernel[i].xy) * uv_size; + suv = clamp(suv, lights.data[idx].atlas_rect.xy, clamp_max); + shadow += textureProj(sampler2DShadow(shadow_atlas, shadow_sampler), vec4(suv, z_norm, 1.0)); + } + + shadow /= float(scene_data.penumbra_shadow_samples); + + } else { + //no blockers found, so no shadow + shadow = 1.0; + } + + } else { + //hard shadow + vec4 shadow_uv = vec4(splane.xy * lights.data[idx].atlas_rect.zw + lights.data[idx].atlas_rect.xy, z_norm, 1.0); + + shadow = sample_pcf_shadow(shadow_atlas, lights.data[idx].soft_shadow_scale * scene_data.shadow_atlas_pixel_size, shadow_uv); + } + + vec3 no_shadow = vec3(1.0); + + if (lights.data[idx].projector_rect != vec4(0.0)) { + splane = (lights.data[idx].shadow_matrix * vec4(vertex, 1.0)); + splane /= splane.w; + + vec2 proj_uv = splane.xy * lights.data[idx].projector_rect.zw; + + //ensure we have proper mipmaps + vec4 splane_ddx = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddx, 1.0)); + splane_ddx /= splane_ddx.w; + vec2 proj_uv_ddx = splane_ddx.xy * lights.data[idx].projector_rect.zw - proj_uv; + + vec4 splane_ddy = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddy, 1.0)); + splane_ddy /= splane_ddy.w; + vec2 proj_uv_ddy = splane_ddy.xy * lights.data[idx].projector_rect.zw - proj_uv; + + vec4 proj = textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), proj_uv + lights.data[idx].projector_rect.xy, proj_uv_ddx, proj_uv_ddy); + no_shadow = mix(no_shadow, proj.rgb, proj.a); + } + + shadow_attenuation = mix(shadow_color_enabled.rgb, no_shadow, shadow); + +#ifdef LIGHT_TRANSMITTANCE_USED + { + splane = (lights.data[idx].shadow_matrix * vec4(vertex - normalize(normal_interp) * lights.data[idx].transmittance_bias, 1.0)); + splane /= splane.w; + splane.xy = splane.xy * lights.data[idx].atlas_rect.zw + lights.data[idx].atlas_rect.xy; + + float shadow_z = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), splane.xy, 0.0).r; + //reconstruct depth + shadow_z /= lights.data[idx].inv_radius; + //distance to light plane + float z = dot(spot_dir, -light_rel_vec); + transmittance_z = z - shadow_z; + } +#endif //LIGHT_TRANSMITTANCE_USED + } + +#endif //USE_NO_SHADOWS + + light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color_specular.rgb, light_attenuation, shadow_attenuation, albedo, roughness, metallic, specular, color_specular.a * p_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + transmittance_color, + transmittance_depth, + transmittance_curve, + transmittance_boost, + transmittance_z, +#endif +#ifdef LIGHT_RIM_USED + rim * spot_attenuation, rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + binormal, tangent, anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + alpha, +#endif + diffuse_light, specular_light); +} + +void reflection_process(uint ref_index, vec3 vertex, vec3 normal, float roughness, vec3 ambient_light, vec3 specular_light, inout vec4 ambient_accum, inout vec4 reflection_accum) { + vec3 box_extents = reflections.data[ref_index].box_extents; + vec3 local_pos = (reflections.data[ref_index].local_matrix * vec4(vertex, 1.0)).xyz; + + if (any(greaterThan(abs(local_pos), box_extents))) { //out of the reflection box + return; + } + + vec3 ref_vec = normalize(reflect(vertex, normal)); + + vec3 inner_pos = abs(local_pos / box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + //make blend more rounded + blend = mix(length(inner_pos), blend, blend); + blend *= blend; + blend = max(0.0, 1.0 - blend); + + if (reflections.data[ref_index].params.x > 0.0) { // compute reflection + + vec3 local_ref_vec = (reflections.data[ref_index].local_matrix * vec4(ref_vec, 0.0)).xyz; + + if (reflections.data[ref_index].params.w > 0.5) { //box project + + vec3 nrdir = normalize(local_ref_vec); + vec3 rbmax = (box_extents - local_pos) / nrdir; + vec3 rbmin = (-box_extents - local_pos) / nrdir; + + vec3 rbminmax = mix(rbmin, rbmax, greaterThan(nrdir, vec3(0.0, 0.0, 0.0))); + + float fa = min(min(rbminmax.x, rbminmax.y), rbminmax.z); + vec3 posonbox = local_pos + nrdir * fa; + local_ref_vec = posonbox - reflections.data[ref_index].box_offset; + } + + vec4 reflection; + + reflection.rgb = textureLod(samplerCubeArray(reflection_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(local_ref_vec, reflections.data[ref_index].index), roughness * MAX_ROUGHNESS_LOD).rgb; + + if (reflections.data[ref_index].params.z < 0.5) { + reflection.rgb = mix(specular_light, reflection.rgb, blend); + } + + reflection.rgb *= reflections.data[ref_index].params.x; + reflection.a = blend; + reflection.rgb *= reflection.a; + + reflection_accum += reflection; + } + + switch (reflections.data[ref_index].ambient_mode) { + case REFLECTION_AMBIENT_DISABLED: { + //do nothing + } break; + case REFLECTION_AMBIENT_ENVIRONMENT: { + //do nothing + vec3 local_amb_vec = (reflections.data[ref_index].local_matrix * vec4(normal, 0.0)).xyz; + + vec4 ambient_out; + + ambient_out.rgb = textureLod(samplerCubeArray(reflection_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(local_amb_vec, reflections.data[ref_index].index), MAX_ROUGHNESS_LOD).rgb; + ambient_out.a = blend; + if (reflections.data[ref_index].params.z < 0.5) { //interior + ambient_out.rgb = mix(ambient_light, ambient_out.rgb, blend); + } + + ambient_out.rgb *= ambient_out.a; + ambient_accum += ambient_out; + } break; + case REFLECTION_AMBIENT_COLOR: { + vec4 ambient_out; + ambient_out.a = blend; + ambient_out.rgb = reflections.data[ref_index].ambient; + if (reflections.data[ref_index].params.z < 0.5) { + ambient_out.rgb = mix(ambient_light, ambient_out.rgb, blend); + } + ambient_out.rgb *= ambient_out.a; + ambient_accum += ambient_out; + } break; + } +} + +#ifdef USE_FORWARD_GI + +//standard voxel cone trace +vec4 voxel_cone_trace(texture3D probe, vec3 cell_size, vec3 pos, vec3 direction, float tan_half_angle, float max_distance, float p_bias) { + float dist = p_bias; + vec4 color = vec4(0.0); + + while (dist < max_distance && color.a < 0.95) { + float diameter = max(1.0, 2.0 * tan_half_angle * dist); + vec3 uvw_pos = (pos + dist * direction) * cell_size; + float half_diameter = diameter * 0.5; + //check if outside, then break + if (any(greaterThan(abs(uvw_pos - 0.5), vec3(0.5f + half_diameter * cell_size)))) { + break; + } + vec4 scolor = textureLod(sampler3D(probe, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uvw_pos, log2(diameter)); + float a = (1.0 - color.a); + color += a * scolor; + dist += half_diameter; + } + + return color; +} + +vec4 voxel_cone_trace_45_degrees(texture3D probe, vec3 cell_size, vec3 pos, vec3 direction, float tan_half_angle, float max_distance, float p_bias) { + float dist = p_bias; + vec4 color = vec4(0.0); + float radius = max(0.5, tan_half_angle * dist); + float lod_level = log2(radius * 2.0); + + while (dist < max_distance && color.a < 0.95) { + vec3 uvw_pos = (pos + dist * direction) * cell_size; + + //check if outside, then break + if (any(greaterThan(abs(uvw_pos - 0.5), vec3(0.5f + radius * cell_size)))) { + break; + } + vec4 scolor = textureLod(sampler3D(probe, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uvw_pos, lod_level); + lod_level += 1.0; + + float a = (1.0 - color.a); + scolor *= a; + color += scolor; + dist += radius; + radius = max(0.5, tan_half_angle * dist); + } + + return color; +} + +void gi_probe_compute(uint index, vec3 position, vec3 normal, vec3 ref_vec, mat3 normal_xform, float roughness, vec3 ambient, vec3 environment, inout vec4 out_spec, inout vec4 out_diff) { + position = (gi_probes.data[index].xform * vec4(position, 1.0)).xyz; + ref_vec = normalize((gi_probes.data[index].xform * vec4(ref_vec, 0.0)).xyz); + normal = normalize((gi_probes.data[index].xform * vec4(normal, 0.0)).xyz); + + position += normal * gi_probes.data[index].normal_bias; + + //this causes corrupted pixels, i have no idea why.. + if (any(bvec2(any(lessThan(position, vec3(0.0))), any(greaterThan(position, gi_probes.data[index].bounds))))) { + return; + } + + vec3 blendv = abs(position / gi_probes.data[index].bounds * 2.0 - 1.0); + float blend = clamp(1.0 - max(blendv.x, max(blendv.y, blendv.z)), 0.0, 1.0); + //float blend=1.0; + + float max_distance = length(gi_probes.data[index].bounds); + vec3 cell_size = 1.0 / gi_probes.data[index].bounds; + + //radiance + +#define MAX_CONE_DIRS 4 + + vec3 cone_dirs[MAX_CONE_DIRS] = vec3[]( + vec3(0.707107, 0.0, 0.707107), + vec3(0.0, 0.707107, 0.707107), + vec3(-0.707107, 0.0, 0.707107), + vec3(0.0, -0.707107, 0.707107)); + + float cone_weights[MAX_CONE_DIRS] = float[](0.25, 0.25, 0.25, 0.25); + float cone_angle_tan = 0.98269; + + vec3 light = vec3(0.0); + + for (int i = 0; i < MAX_CONE_DIRS; i++) { + vec3 dir = normalize((gi_probes.data[index].xform * vec4(normal_xform * cone_dirs[i], 0.0)).xyz); + + vec4 cone_light = voxel_cone_trace_45_degrees(gi_probe_textures[index], cell_size, position, dir, cone_angle_tan, max_distance, gi_probes.data[index].bias); + + if (gi_probes.data[index].blend_ambient) { + cone_light.rgb = mix(ambient, cone_light.rgb, min(1.0, cone_light.a / 0.95)); + } + + light += cone_weights[i] * cone_light.rgb; + } + + light *= gi_probes.data[index].dynamic_range; + out_diff += vec4(light * blend, blend); + + //irradiance + vec4 irr_light = voxel_cone_trace(gi_probe_textures[index], cell_size, position, ref_vec, tan(roughness * 0.5 * M_PI * 0.99), max_distance, gi_probes.data[index].bias); + if (gi_probes.data[index].blend_ambient) { + irr_light.rgb = mix(environment, irr_light.rgb, min(1.0, irr_light.a / 0.95)); + } + irr_light.rgb *= gi_probes.data[index].dynamic_range; + //irr_light=vec3(0.0); + + out_spec += vec4(irr_light.rgb * blend, blend); +} + +vec2 octahedron_wrap(vec2 v) { + vec2 signVal; + signVal.x = v.x >= 0.0 ? 1.0 : -1.0; + signVal.y = v.y >= 0.0 ? 1.0 : -1.0; + return (1.0 - abs(v.yx)) * signVal; +} + +vec2 octahedron_encode(vec3 n) { + // https://twitter.com/Stubbesaurus/status/937994790553227264 + n /= (abs(n.x) + abs(n.y) + abs(n.z)); + n.xy = n.z >= 0.0 ? n.xy : octahedron_wrap(n.xy); + n.xy = n.xy * 0.5 + 0.5; + return n.xy; +} + +void sdfgi_process(uint cascade, vec3 cascade_pos, vec3 cam_pos, vec3 cam_normal, vec3 cam_specular_normal, bool use_specular, float roughness, out vec3 diffuse_light, out vec3 specular_light, out float blend) { + cascade_pos += cam_normal * sdfgi.normal_bias; + + vec3 base_pos = floor(cascade_pos); + //cascade_pos += mix(vec3(0.0),vec3(0.01),lessThan(abs(cascade_pos-base_pos),vec3(0.01))) * cam_normal; + ivec3 probe_base_pos = ivec3(base_pos); + + vec4 diffuse_accum = vec4(0.0); + vec3 specular_accum; + + ivec3 tex_pos = ivec3(probe_base_pos.xy, int(cascade)); + tex_pos.x += probe_base_pos.z * sdfgi.probe_axis_size; + tex_pos.xy = tex_pos.xy * (SDFGI_OCT_SIZE + 2) + ivec2(1); + + vec3 diffuse_posf = (vec3(tex_pos) + vec3(octahedron_encode(cam_normal) * float(SDFGI_OCT_SIZE), 0.0)) * sdfgi.lightprobe_tex_pixel_size; + + vec3 specular_posf; + + if (use_specular) { + specular_accum = vec3(0.0); + specular_posf = (vec3(tex_pos) + vec3(octahedron_encode(cam_specular_normal) * float(SDFGI_OCT_SIZE), 0.0)) * sdfgi.lightprobe_tex_pixel_size; + } + + vec4 light_accum = vec4(0.0); + float weight_accum = 0.0; + + for (uint j = 0; j < 8; j++) { + ivec3 offset = (ivec3(j) >> ivec3(0, 1, 2)) & ivec3(1, 1, 1); + ivec3 probe_posi = probe_base_pos; + probe_posi += offset; + + // Compute weight + + vec3 probe_pos = vec3(probe_posi); + vec3 probe_to_pos = cascade_pos - probe_pos; + vec3 probe_dir = normalize(-probe_to_pos); + + vec3 trilinear = vec3(1.0) - abs(probe_to_pos); + float weight = trilinear.x * trilinear.y * trilinear.z * max(0.005, dot(cam_normal, probe_dir)); + + // Compute lightprobe occlusion + + if (sdfgi.use_occlusion) { + ivec3 occ_indexv = abs((sdfgi.cascades[cascade].probe_world_offset + probe_posi) & ivec3(1, 1, 1)) * ivec3(1, 2, 4); + vec4 occ_mask = mix(vec4(0.0), vec4(1.0), equal(ivec4(occ_indexv.x | occ_indexv.y), ivec4(0, 1, 2, 3))); + + vec3 occ_pos = clamp(cascade_pos, probe_pos - sdfgi.occlusion_clamp, probe_pos + sdfgi.occlusion_clamp) * sdfgi.probe_to_uvw; + occ_pos.z += float(cascade); + if (occ_indexv.z != 0) { //z bit is on, means index is >=4, so make it switch to the other half of textures + occ_pos.x += 1.0; + } + + occ_pos *= sdfgi.occlusion_renormalize; + float occlusion = dot(textureLod(sampler3D(sdfgi_occlusion_cascades, material_samplers[SAMPLER_LINEAR_CLAMP]), occ_pos, 0.0), occ_mask); + + weight *= max(occlusion, 0.01); + } + + // Compute lightprobe texture position + + vec3 diffuse; + vec3 pos_uvw = diffuse_posf; + pos_uvw.xy += vec2(offset.xy) * sdfgi.lightprobe_uv_offset.xy; + pos_uvw.x += float(offset.z) * sdfgi.lightprobe_uv_offset.z; + diffuse = textureLod(sampler2DArray(sdfgi_lightprobe_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), pos_uvw, 0.0).rgb; + + diffuse_accum += vec4(diffuse * weight, weight); + + if (use_specular) { + vec3 specular = vec3(0.0); + vec3 pos_uvw = specular_posf; + pos_uvw.xy += vec2(offset.xy) * sdfgi.lightprobe_uv_offset.xy; + pos_uvw.x += float(offset.z) * sdfgi.lightprobe_uv_offset.z; + if (roughness < 0.99) { + specular = textureLod(sampler2DArray(sdfgi_lightprobe_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), pos_uvw + vec3(0, 0, float(sdfgi.max_cascades)), 0.0).rgb; + } + if (roughness > 0.5) { + specular = mix(specular, textureLod(sampler2DArray(sdfgi_lightprobe_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), pos_uvw, 0.0).rgb, (roughness - 0.5) * 2.0); + } + + specular_accum += specular * weight; + } + } + + if (diffuse_accum.a > 0.0) { + diffuse_accum.rgb /= diffuse_accum.a; + } + + diffuse_light = diffuse_accum.rgb; + + if (use_specular) { + if (diffuse_accum.a > 0.0) { + specular_accum /= diffuse_accum.a; + } + + specular_light = specular_accum; + } + + { + //process blend + float blend_from = (float(sdfgi.probe_axis_size - 1) / 2.0) - 2.5; + float blend_to = blend_from + 2.0; + + vec3 inner_pos = cam_pos * sdfgi.cascades[cascade].to_probe; + + float len = length(inner_pos); + + inner_pos = abs(normalize(inner_pos)); + len *= max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + + if (len >= blend_from) { + blend = smoothstep(blend_from, blend_to, len); + } else { + blend = 0.0; + } + } +} + +#endif //USE_FORWARD_GI + +#endif //!defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) + +#ifndef MODE_RENDER_DEPTH + +#ifndef LOW_END_MODE + +vec4 volumetric_fog_process(vec2 screen_uv, float z) { + vec3 fog_pos = vec3(screen_uv, z * scene_data.volumetric_fog_inv_length); + if (fog_pos.z < 0.0) { + return vec4(0.0); + } else if (fog_pos.z < 1.0) { + fog_pos.z = pow(fog_pos.z, scene_data.volumetric_fog_detail_spread); + } + + return texture(sampler3D(volumetric_fog_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), fog_pos); +} +#endif + +vec4 fog_process(vec3 vertex) { + vec3 fog_color = scene_data.fog_light_color; + + if (scene_data.fog_aerial_perspective > 0.0) { + vec3 sky_fog_color = vec3(0.0); + vec3 cube_view = scene_data.radiance_inverse_xform * vertex; + // mip_level always reads from the second mipmap and higher so the fog is always slightly blurred + float mip_level = mix(1.0 / MAX_ROUGHNESS_LOD, 1.0, 1.0 - (abs(vertex.z) - scene_data.z_near) / (scene_data.z_far - scene_data.z_near)); +#ifdef USE_RADIANCE_CUBEMAP_ARRAY + float lod, blend; + blend = modf(mip_level * MAX_ROUGHNESS_LOD, lod); + sky_fog_color = texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(cube_view, lod)).rgb; + sky_fog_color = mix(sky_fog_color, texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(cube_view, lod + 1)).rgb, blend); +#else + sky_fog_color = textureLod(samplerCube(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), cube_view, mip_level * MAX_ROUGHNESS_LOD).rgb; +#endif //USE_RADIANCE_CUBEMAP_ARRAY + fog_color = mix(fog_color, sky_fog_color, scene_data.fog_aerial_perspective); + } + + if (scene_data.fog_sun_scatter > 0.001) { + vec4 sun_scatter = vec4(0.0); + float sun_total = 0.0; + vec3 view = normalize(vertex); + + for (uint i = 0; i < scene_data.directional_light_count; i++) { + vec3 light_color = directional_lights.data[i].color * directional_lights.data[i].energy; + float light_amount = pow(max(dot(view, directional_lights.data[i].direction), 0.0), 8.0); + fog_color += light_color * light_amount * scene_data.fog_sun_scatter; + } + } + + float fog_amount = 1.0 - exp(vertex.z * scene_data.fog_density); + + if (abs(scene_data.fog_height_density) > 0.001) { + float y = (scene_data.camera_matrix * vec4(vertex, 1.0)).y; + + float y_dist = scene_data.fog_height - y; + + float vfog_amount = clamp(exp(y_dist * scene_data.fog_height_density), 0.0, 1.0); + + fog_amount = max(vfog_amount, fog_amount); + } + + return vec4(fog_color, fog_amount); +} + +#endif + +void main() { +#ifdef MODE_DUAL_PARABOLOID + + if (dp_clip > 0.0) + discard; +#endif + + //lay out everything, whathever is unused is optimized away anyway + vec3 vertex = vertex_interp; + vec3 view = -normalize(vertex_interp); + vec3 albedo = vec3(1.0); + vec3 backlight = vec3(0.0); + vec4 transmittance_color = vec4(0.0); + float transmittance_depth = 0.0; + float transmittance_curve = 1.0; + float transmittance_boost = 0.0; + float metallic = 0.0; + float specular = 0.5; + vec3 emission = vec3(0.0); + float roughness = 1.0; + float rim = 0.0; + float rim_tint = 0.0; + float clearcoat = 0.0; + float clearcoat_gloss = 0.0; + float anisotropy = 0.0; + vec2 anisotropy_flow = vec2(1.0, 0.0); +#if defined(CUSTOM_FOG_USED) + vec4 custom_fog = vec4(0.0); +#endif +#if defined(CUSTOM_RADIANCE_USED) + vec4 custom_radiance = vec4(0.0); +#endif +#if defined(CUSTOM_IRRADIANCE_USED) + vec4 custom_irradiance = vec4(0.0); +#endif + +#if defined(AO_USED) + float ao = 1.0; + float ao_light_affect = 0.0; +#endif + + float alpha = 1.0; + +#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) + vec3 binormal = normalize(binormal_interp); + vec3 tangent = normalize(tangent_interp); +#else + vec3 binormal = vec3(0.0); + vec3 tangent = vec3(0.0); +#endif + vec3 normal = normalize(normal_interp); + +#if defined(DO_SIDE_CHECK) + if (!gl_FrontFacing) { + normal = -normal; + } +#endif + + vec2 uv = uv_interp; + +#if defined(UV2_USED) || defined(USE_LIGHTMAP) + vec2 uv2 = uv2_interp; +#endif + +#if defined(COLOR_USED) + vec4 color = color_interp; +#endif + +#if defined(NORMALMAP_USED) + + vec3 normalmap = vec3(0.5); +#endif + + float normaldepth = 1.0; + + vec2 screen_uv = gl_FragCoord.xy * scene_data.screen_pixel_size + scene_data.screen_pixel_size * 0.5; //account for center + + float sss_strength = 0.0; + +#ifdef ALPHA_SCISSOR_USED + float alpha_scissor_threshold = 1.0; +#endif // ALPHA_SCISSOR_USED + +#ifdef ALPHA_HASH_USED + float alpha_hash_scale = 1.0; +#endif // ALPHA_HASH_USED + +#ifdef ALPHA_ANTIALIASING_EDGE_USED + float alpha_antialiasing_edge = 0.0; + vec2 alpha_texture_coordinate = vec2(0.0, 0.0); +#endif // ALPHA_ANTIALIASING_EDGE_USED + + { + /* clang-format off */ + +FRAGMENT_SHADER_CODE + + /* clang-format on */ + } + +#ifdef LIGHT_TRANSMITTANCE_USED +#ifdef SSS_MODE_SKIN + transmittance_color.a = sss_strength; +#else + transmittance_color.a *= sss_strength; +#endif +#endif + +#ifndef USE_SHADOW_TO_OPACITY + +#ifdef ALPHA_SCISSOR_USED + if (alpha < alpha_scissor_threshold) { + discard; + } +#endif // ALPHA_SCISSOR_USED + +// alpha hash can be used in unison with alpha antialiasing +#ifdef ALPHA_HASH_USED + if (alpha < compute_alpha_hash_threshold(vertex, alpha_hash_scale)) { + discard; + } +#endif // ALPHA_HASH_USED + +// If we are not edge antialiasing, we need to remove the output alpha channel from scissor and hash +#if (defined(ALPHA_SCISSOR_USED) || defined(ALPHA_HASH_USED)) && !defined(ALPHA_ANTIALIASING_EDGE_USED) + alpha = 1.0; +#endif + +#ifdef ALPHA_ANTIALIASING_EDGE_USED +// If alpha scissor is used, we must further the edge threshold, otherwise we wont get any edge feather +#ifdef ALPHA_SCISSOR_USED + alpha_antialiasing_edge = clamp(alpha_scissor_threshold + alpha_antialiasing_edge, 0.0, 1.0); +#endif + alpha = compute_alpha_antialiasing_edge(alpha, alpha_texture_coordinate, alpha_antialiasing_edge); +#endif // ALPHA_ANTIALIASING_EDGE_USED + +#ifdef USE_OPAQUE_PREPASS + if (alpha < opaque_prepass_threshold) { + discard; + } +#endif // USE_OPAQUE_PREPASS + +#endif // !USE_SHADOW_TO_OPACITY + +#ifdef NORMALMAP_USED + + normalmap.xy = normalmap.xy * 2.0 - 1.0; + normalmap.z = sqrt(max(0.0, 1.0 - dot(normalmap.xy, normalmap.xy))); //always ignore Z, as it can be RG packed, Z may be pos/neg, etc. + + normal = normalize(mix(normal, tangent * normalmap.x + binormal * normalmap.y + normal * normalmap.z, normaldepth)); + +#endif + +#ifdef LIGHT_ANISOTROPY_USED + + if (anisotropy > 0.01) { + //rotation matrix + mat3 rot = mat3(tangent, binormal, normal); + //make local to space + tangent = normalize(rot * vec3(anisotropy_flow.x, anisotropy_flow.y, 0.0)); + binormal = normalize(rot * vec3(-anisotropy_flow.y, anisotropy_flow.x, 0.0)); + } + +#endif + +#ifdef ENABLE_CLIP_ALPHA + if (albedo.a < 0.99) { + //used for doublepass and shadowmapping + discard; + } +#endif + /////////////////////// DECALS //////////////////////////////// + +#ifndef MODE_RENDER_DEPTH + + uvec4 cluster_cell = texture(usampler3D(cluster_texture, material_samplers[SAMPLER_NEAREST_CLAMP]), vec3(screen_uv, (abs(vertex.z) - scene_data.z_near) / (scene_data.z_far - scene_data.z_near))); + //used for interpolating anything cluster related + vec3 vertex_ddx = dFdx(vertex); + vec3 vertex_ddy = dFdy(vertex); + + { // process decals + + uint decal_count = cluster_cell.w >> CLUSTER_COUNTER_SHIFT; + uint decal_pointer = cluster_cell.w & CLUSTER_POINTER_MASK; + + //do outside for performance and avoiding arctifacts + + for (uint i = 0; i < decal_count; i++) { + uint decal_index = cluster_data.indices[decal_pointer + i]; + if (!bool(decals.data[decal_index].mask & instances.data[instance_index].layer_mask)) { + continue; //not masked + } + + vec3 uv_local = (decals.data[decal_index].xform * vec4(vertex, 1.0)).xyz; + if (any(lessThan(uv_local, vec3(0.0, -1.0, 0.0))) || any(greaterThan(uv_local, vec3(1.0)))) { + continue; //out of decal + } + + //we need ddx/ddy for mipmaps, so simulate them + vec2 ddx = (decals.data[decal_index].xform * vec4(vertex_ddx, 0.0)).xz; + vec2 ddy = (decals.data[decal_index].xform * vec4(vertex_ddy, 0.0)).xz; + + float fade = pow(1.0 - (uv_local.y > 0.0 ? uv_local.y : -uv_local.y), uv_local.y > 0.0 ? decals.data[decal_index].upper_fade : decals.data[decal_index].lower_fade); + + if (decals.data[decal_index].normal_fade > 0.0) { + fade *= smoothstep(decals.data[decal_index].normal_fade, 1.0, dot(normal_interp, decals.data[decal_index].normal) * 0.5 + 0.5); + } + + if (decals.data[decal_index].albedo_rect != vec4(0.0)) { + //has albedo + vec4 decal_albedo = textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].albedo_rect.zw + decals.data[decal_index].albedo_rect.xy, ddx * decals.data[decal_index].albedo_rect.zw, ddy * decals.data[decal_index].albedo_rect.zw); + decal_albedo *= decals.data[decal_index].modulate; + decal_albedo.a *= fade; + albedo = mix(albedo, decal_albedo.rgb, decal_albedo.a * decals.data[decal_index].albedo_mix); + + if (decals.data[decal_index].normal_rect != vec4(0.0)) { + vec3 decal_normal = textureGrad(sampler2D(decal_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].normal_rect.zw + decals.data[decal_index].normal_rect.xy, ddx * decals.data[decal_index].normal_rect.zw, ddy * decals.data[decal_index].normal_rect.zw).xyz; + decal_normal.xy = decal_normal.xy * vec2(2.0, -2.0) - vec2(1.0, -1.0); //users prefer flipped y normal maps in most authoring software + decal_normal.z = sqrt(max(0.0, 1.0 - dot(decal_normal.xy, decal_normal.xy))); + //convert to view space, use xzy because y is up + decal_normal = (decals.data[decal_index].normal_xform * decal_normal.xzy).xyz; + + normal = normalize(mix(normal, decal_normal, decal_albedo.a)); + } + + if (decals.data[decal_index].orm_rect != vec4(0.0)) { + vec3 decal_orm = textureGrad(sampler2D(decal_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].orm_rect.zw + decals.data[decal_index].orm_rect.xy, ddx * decals.data[decal_index].orm_rect.zw, ddy * decals.data[decal_index].orm_rect.zw).xyz; +#if defined(AO_USED) + ao = mix(ao, decal_orm.r, decal_albedo.a); +#endif + roughness = mix(roughness, decal_orm.g, decal_albedo.a); + metallic = mix(metallic, decal_orm.b, decal_albedo.a); + } + } + + if (decals.data[decal_index].emission_rect != vec4(0.0)) { + //emission is additive, so its independent from albedo + emission += textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].emission_rect.zw + decals.data[decal_index].emission_rect.xy, ddx * decals.data[decal_index].emission_rect.zw, ddy * decals.data[decal_index].emission_rect.zw).xyz * decals.data[decal_index].emission_energy * fade; + } + } + } + +#endif //not render depth + /////////////////////// LIGHTING ////////////////////////////// + + if (scene_data.roughness_limiter_enabled) { + //http://www.jp.square-enix.com/tech/library/pdf/ImprovedGeometricSpecularAA.pdf + float roughness2 = roughness * roughness; + vec3 dndu = dFdx(normal), dndv = dFdx(normal); + float variance = scene_data.roughness_limiter_amount * (dot(dndu, dndu) + dot(dndv, dndv)); + float kernelRoughness2 = min(2.0 * variance, scene_data.roughness_limiter_limit); //limit effect + float filteredRoughness2 = min(1.0, roughness2 + kernelRoughness2); + roughness = sqrt(filteredRoughness2); + } + //apply energy conservation + + vec3 specular_light = vec3(0.0, 0.0, 0.0); + vec3 diffuse_light = vec3(0.0, 0.0, 0.0); + vec3 ambient_light = vec3(0.0, 0.0, 0.0); + +#if !defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) + + if (scene_data.use_reflection_cubemap) { + vec3 ref_vec = reflect(-view, normal); + ref_vec = scene_data.radiance_inverse_xform * ref_vec; +#ifdef USE_RADIANCE_CUBEMAP_ARRAY + + float lod, blend; + blend = modf(roughness * MAX_ROUGHNESS_LOD, lod); + specular_light = texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(ref_vec, lod)).rgb; + specular_light = mix(specular_light, texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(ref_vec, lod + 1)).rgb, blend); + +#else + specular_light = textureLod(samplerCube(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), ref_vec, roughness * MAX_ROUGHNESS_LOD).rgb; + +#endif //USE_RADIANCE_CUBEMAP_ARRAY + specular_light *= scene_data.ambient_light_color_energy.a; + } + +#if defined(CUSTOM_RADIANCE_USED) + specular_light = mix(specular_light, custom_radiance.rgb, custom_radiance.a); +#endif + +#ifndef USE_LIGHTMAP + //lightmap overrides everything + if (scene_data.use_ambient_light) { + ambient_light = scene_data.ambient_light_color_energy.rgb; + + if (scene_data.use_ambient_cubemap) { + vec3 ambient_dir = scene_data.radiance_inverse_xform * normal; +#ifdef USE_RADIANCE_CUBEMAP_ARRAY + vec3 cubemap_ambient = texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(ambient_dir, MAX_ROUGHNESS_LOD)).rgb; +#else + vec3 cubemap_ambient = textureLod(samplerCube(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), ambient_dir, MAX_ROUGHNESS_LOD).rgb; +#endif //USE_RADIANCE_CUBEMAP_ARRAY + + ambient_light = mix(ambient_light, cubemap_ambient * scene_data.ambient_light_color_energy.a, scene_data.ambient_color_sky_mix); + } + } +#endif // USE_LIGHTMAP +#if defined(CUSTOM_IRRADIANCE_USED) + ambient_light = mix(specular_light, custom_irradiance.rgb, custom_irradiance.a); +#endif +#endif //!defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) + + //radiance + + float specular_blob_intensity = 1.0; + +#if defined(SPECULAR_TOON) + specular_blob_intensity *= specular * 2.0; +#endif + +#if !defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) + +#ifdef USE_LIGHTMAP + + //lightmap + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE)) { //has lightmap capture + uint index = instances.data[instance_index].gi_offset; + + vec3 wnormal = mat3(scene_data.camera_matrix) * normal; + const float c1 = 0.429043; + const float c2 = 0.511664; + const float c3 = 0.743125; + const float c4 = 0.886227; + const float c5 = 0.247708; + ambient_light += (c1 * lightmap_captures.data[index].sh[8].rgb * (wnormal.x * wnormal.x - wnormal.y * wnormal.y) + + c3 * lightmap_captures.data[index].sh[6].rgb * wnormal.z * wnormal.z + + c4 * lightmap_captures.data[index].sh[0].rgb - + c5 * lightmap_captures.data[index].sh[6].rgb + + 2.0 * c1 * lightmap_captures.data[index].sh[4].rgb * wnormal.x * wnormal.y + + 2.0 * c1 * lightmap_captures.data[index].sh[7].rgb * wnormal.x * wnormal.z + + 2.0 * c1 * lightmap_captures.data[index].sh[5].rgb * wnormal.y * wnormal.z + + 2.0 * c2 * lightmap_captures.data[index].sh[3].rgb * wnormal.x + + 2.0 * c2 * lightmap_captures.data[index].sh[1].rgb * wnormal.y + + 2.0 * c2 * lightmap_captures.data[index].sh[2].rgb * wnormal.z); + + } else if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_LIGHTMAP)) { // has actual lightmap + bool uses_sh = bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_SH_LIGHTMAP); + uint ofs = instances.data[instance_index].gi_offset & 0xFFF; + vec3 uvw; + uvw.xy = uv2 * instances.data[instance_index].lightmap_uv_scale.zw + instances.data[instance_index].lightmap_uv_scale.xy; + uvw.z = float((instances.data[instance_index].gi_offset >> 12) & 0xFF); + + if (uses_sh) { + uvw.z *= 4.0; //SH textures use 4 times more data + vec3 lm_light_l0 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 0.0), 0.0).rgb; + vec3 lm_light_l1n1 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 1.0), 0.0).rgb; + vec3 lm_light_l1_0 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 2.0), 0.0).rgb; + vec3 lm_light_l1p1 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 3.0), 0.0).rgb; + + uint idx = instances.data[instance_index].gi_offset >> 20; + vec3 n = normalize(lightmaps.data[idx].normal_xform * normal); + + ambient_light += lm_light_l0 * 0.282095f; + ambient_light += lm_light_l1n1 * 0.32573 * n.y; + ambient_light += lm_light_l1_0 * 0.32573 * n.z; + ambient_light += lm_light_l1p1 * 0.32573 * n.x; + if (metallic > 0.01) { // since the more direct bounced light is lost, we can kind of fake it with this trick + vec3 r = reflect(normalize(-vertex), normal); + specular_light += lm_light_l1n1 * 0.32573 * r.y; + specular_light += lm_light_l1_0 * 0.32573 * r.z; + specular_light += lm_light_l1p1 * 0.32573 * r.x; + } + + } else { + ambient_light += textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw, 0.0).rgb; + } + } +#elif defined(USE_FORWARD_GI) + + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_SDFGI)) { //has lightmap capture + + //make vertex orientation the world one, but still align to camera + vec3 cam_pos = mat3(scene_data.camera_matrix) * vertex; + vec3 cam_normal = mat3(scene_data.camera_matrix) * normal; + vec3 cam_reflection = mat3(scene_data.camera_matrix) * reflect(-view, normal); + + //apply y-mult + cam_pos.y *= sdfgi.y_mult; + cam_normal.y *= sdfgi.y_mult; + cam_normal = normalize(cam_normal); + cam_reflection.y *= sdfgi.y_mult; + cam_normal = normalize(cam_normal); + cam_reflection = normalize(cam_reflection); + + vec4 light_accum = vec4(0.0); + float weight_accum = 0.0; + + vec4 light_blend_accum = vec4(0.0); + float weight_blend_accum = 0.0; + + float blend = -1.0; + + // helper constants, compute once + + uint cascade = 0xFFFFFFFF; + vec3 cascade_pos; + vec3 cascade_normal; + + for (uint i = 0; i < sdfgi.max_cascades; i++) { + cascade_pos = (cam_pos - sdfgi.cascades[i].position) * sdfgi.cascades[i].to_probe; + + if (any(lessThan(cascade_pos, vec3(0.0))) || any(greaterThanEqual(cascade_pos, sdfgi.cascade_probe_size))) { + continue; //skip cascade + } + + cascade = i; + break; + } + + if (cascade < SDFGI_MAX_CASCADES) { + bool use_specular = true; + float blend; + vec3 diffuse, specular; + sdfgi_process(cascade, cascade_pos, cam_pos, cam_normal, cam_reflection, use_specular, roughness, diffuse, specular, blend); + + if (blend > 0.0) { + //blend + if (cascade == sdfgi.max_cascades - 1) { + diffuse = mix(diffuse, ambient_light, blend); + if (use_specular) { + specular = mix(specular, specular_light, blend); + } + } else { + vec3 diffuse2, specular2; + float blend2; + cascade_pos = (cam_pos - sdfgi.cascades[cascade + 1].position) * sdfgi.cascades[cascade + 1].to_probe; + sdfgi_process(cascade + 1, cascade_pos, cam_pos, cam_normal, cam_reflection, use_specular, roughness, diffuse2, specular2, blend2); + diffuse = mix(diffuse, diffuse2, blend); + if (use_specular) { + specular = mix(specular, specular2, blend); + } + } + } + + ambient_light = diffuse; + if (use_specular) { + specular_light = specular; + } + } + } + + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes + + uint index1 = instances.data[instance_index].gi_offset & 0xFFFF; + vec3 ref_vec = normalize(reflect(normalize(vertex), normal)); + //find arbitrary tangent and bitangent, then build a matrix + vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0); + vec3 tangent = normalize(cross(v0, normal)); + vec3 bitangent = normalize(cross(tangent, normal)); + mat3 normal_mat = mat3(tangent, bitangent, normal); + + vec4 amb_accum = vec4(0.0); + vec4 spec_accum = vec4(0.0); + gi_probe_compute(index1, vertex, normal, ref_vec, normal_mat, roughness * roughness, ambient_light, specular_light, spec_accum, amb_accum); + + uint index2 = instances.data[instance_index].gi_offset >> 16; + + if (index2 != 0xFFFF) { + gi_probe_compute(index2, vertex, normal, ref_vec, normal_mat, roughness * roughness, ambient_light, specular_light, spec_accum, amb_accum); + } + + if (amb_accum.a > 0.0) { + amb_accum.rgb /= amb_accum.a; + } + + if (spec_accum.a > 0.0) { + spec_accum.rgb /= spec_accum.a; + } + + specular_light = spec_accum.rgb; + ambient_light = amb_accum.rgb; + } +#elif !defined(LOW_END_MODE) + + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GI_BUFFERS)) { //use GI buffers + + ivec2 coord; + + if (scene_data.gi_upscale_for_msaa) { + ivec2 base_coord = ivec2(gl_FragCoord.xy); + ivec2 closest_coord = base_coord; + float closest_ang = dot(normal, texelFetch(sampler2D(normal_roughness_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), base_coord, 0).xyz * 2.0 - 1.0); + + for (int i = 0; i < 4; i++) { + const ivec2 neighbours[4] = ivec2[](ivec2(-1, 0), ivec2(1, 0), ivec2(0, -1), ivec2(0, 1)); + ivec2 neighbour_coord = base_coord + neighbours[i]; + float neighbour_ang = dot(normal, texelFetch(sampler2D(normal_roughness_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), neighbour_coord, 0).xyz * 2.0 - 1.0); + if (neighbour_ang > closest_ang) { + closest_ang = neighbour_ang; + closest_coord = neighbour_coord; + } + } + + coord = closest_coord; + + } else { + coord = ivec2(gl_FragCoord.xy); + } + + vec4 buffer_ambient = texelFetch(sampler2D(ambient_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), coord, 0); + vec4 buffer_reflection = texelFetch(sampler2D(reflection_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), coord, 0); + + ambient_light = mix(ambient_light, buffer_ambient.rgb, buffer_ambient.a); + specular_light = mix(specular_light, buffer_reflection.rgb, buffer_reflection.a); + } +#endif + + { // process reflections + + vec4 reflection_accum = vec4(0.0, 0.0, 0.0, 0.0); + vec4 ambient_accum = vec4(0.0, 0.0, 0.0, 0.0); + + uint reflection_probe_count = cluster_cell.z >> CLUSTER_COUNTER_SHIFT; + uint reflection_probe_pointer = cluster_cell.z & CLUSTER_POINTER_MASK; + + for (uint i = 0; i < reflection_probe_count; i++) { + uint ref_index = cluster_data.indices[reflection_probe_pointer + i]; + reflection_process(ref_index, vertex, normal, roughness, ambient_light, specular_light, ambient_accum, reflection_accum); + } + + if (reflection_accum.a > 0.0) { + specular_light = reflection_accum.rgb / reflection_accum.a; + } + +#if !defined(USE_LIGHTMAP) + if (ambient_accum.a > 0.0) { + ambient_light = ambient_accum.rgb / ambient_accum.a; + } +#endif + } + + { +#if defined(DIFFUSE_TOON) + //simplify for toon, as + specular_light *= specular * metallic * albedo * 2.0; +#else + + // scales the specular reflections, needs to be be computed before lighting happens, + // but after environment, GI, and reflection probes are added + // Environment brdf approximation (Lazarov 2013) + // see https://www.unrealengine.com/en-US/blog/physically-based-shading-on-mobile + const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); + const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); + vec4 r = roughness * c0 + c1; + float ndotv = clamp(dot(normal, view), 0.0, 1.0); + float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y; + vec2 env = vec2(-1.04, 1.04) * a004 + r.zw; + + vec3 f0 = F0(metallic, specular, albedo); + specular_light *= env.x * f0 + env.y; +#endif + } + + { //directional light + + for (uint i = 0; i < scene_data.directional_light_count; i++) { + if (!bool(directional_lights.data[i].mask & instances.data[instance_index].layer_mask)) { + continue; //not masked + } + + vec3 shadow_attenuation = vec3(1.0); + +#ifdef LIGHT_TRANSMITTANCE_USED + float transmittance_z = transmittance_depth; +#endif + + if (directional_lights.data[i].shadow_enabled) { + float depth_z = -vertex.z; + + vec4 pssm_coord; + vec3 shadow_color = vec3(0.0); + vec3 light_dir = directional_lights.data[i].direction; + +#define BIAS_FUNC(m_var, m_idx) \ + m_var.xyz += light_dir * directional_lights.data[i].shadow_bias[m_idx]; \ + vec3 normal_bias = normalize(normal_interp) * (1.0 - max(0.0, dot(light_dir, -normalize(normal_interp)))) * directional_lights.data[i].shadow_normal_bias[m_idx]; \ + normal_bias -= light_dir * dot(light_dir, normal_bias); \ + m_var.xyz += normal_bias; + + float shadow = 0.0; + + if (depth_z < directional_lights.data[i].shadow_split_offsets.x) { + vec4 v = vec4(vertex, 1.0); + + BIAS_FUNC(v, 0) + + pssm_coord = (directional_lights.data[i].shadow_matrix1 * v); + pssm_coord /= pssm_coord.w; + + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.x; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale1 * test_radius; + shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + shadow_color = directional_lights.data[i].shadow_color1.rgb; + +#ifdef LIGHT_TRANSMITTANCE_USED + { + vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.x, 1.0); + vec4 trans_coord = directional_lights.data[i].shadow_matrix1 * trans_vertex; + trans_coord /= trans_coord.w; + + float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; + shadow_z *= directional_lights.data[i].shadow_z_range.x; + float z = trans_coord.z * directional_lights.data[i].shadow_z_range.x; + + transmittance_z = z - shadow_z; + } +#endif + } else if (depth_z < directional_lights.data[i].shadow_split_offsets.y) { + vec4 v = vec4(vertex, 1.0); + + BIAS_FUNC(v, 1) + + pssm_coord = (directional_lights.data[i].shadow_matrix2 * v); + pssm_coord /= pssm_coord.w; + + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.y; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale2 * test_radius; + shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + shadow_color = directional_lights.data[i].shadow_color2.rgb; +#ifdef LIGHT_TRANSMITTANCE_USED + { + vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.y, 1.0); + vec4 trans_coord = directional_lights.data[i].shadow_matrix2 * trans_vertex; + trans_coord /= trans_coord.w; + + float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; + shadow_z *= directional_lights.data[i].shadow_z_range.y; + float z = trans_coord.z * directional_lights.data[i].shadow_z_range.y; + + transmittance_z = z - shadow_z; + } +#endif + } else if (depth_z < directional_lights.data[i].shadow_split_offsets.z) { + vec4 v = vec4(vertex, 1.0); + + BIAS_FUNC(v, 2) + + pssm_coord = (directional_lights.data[i].shadow_matrix3 * v); + pssm_coord /= pssm_coord.w; + + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.z; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale3 * test_radius; + shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + shadow_color = directional_lights.data[i].shadow_color3.rgb; +#ifdef LIGHT_TRANSMITTANCE_USED + { + vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.z, 1.0); + vec4 trans_coord = directional_lights.data[i].shadow_matrix3 * trans_vertex; + trans_coord /= trans_coord.w; + + float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; + shadow_z *= directional_lights.data[i].shadow_z_range.z; + float z = trans_coord.z * directional_lights.data[i].shadow_z_range.z; + + transmittance_z = z - shadow_z; + } +#endif + + } else { + vec4 v = vec4(vertex, 1.0); + + BIAS_FUNC(v, 3) + + pssm_coord = (directional_lights.data[i].shadow_matrix4 * v); + pssm_coord /= pssm_coord.w; + + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.w; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale4 * test_radius; + shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + shadow_color = directional_lights.data[i].shadow_color4.rgb; + +#ifdef LIGHT_TRANSMITTANCE_USED + { + vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.w, 1.0); + vec4 trans_coord = directional_lights.data[i].shadow_matrix4 * trans_vertex; + trans_coord /= trans_coord.w; + + float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; + shadow_z *= directional_lights.data[i].shadow_z_range.w; + float z = trans_coord.z * directional_lights.data[i].shadow_z_range.w; + + transmittance_z = z - shadow_z; + } +#endif + } + + if (directional_lights.data[i].blend_splits) { + vec3 shadow_color_blend = vec3(0.0); + float pssm_blend; + float shadow2; + + if (depth_z < directional_lights.data[i].shadow_split_offsets.x) { + vec4 v = vec4(vertex, 1.0); + BIAS_FUNC(v, 1) + pssm_coord = (directional_lights.data[i].shadow_matrix2 * v); + pssm_coord /= pssm_coord.w; + + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.y; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale2 * test_radius; + shadow2 = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow2 = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + pssm_blend = smoothstep(0.0, directional_lights.data[i].shadow_split_offsets.x, depth_z); + shadow_color_blend = directional_lights.data[i].shadow_color2.rgb; + } else if (depth_z < directional_lights.data[i].shadow_split_offsets.y) { + vec4 v = vec4(vertex, 1.0); + BIAS_FUNC(v, 2) + pssm_coord = (directional_lights.data[i].shadow_matrix3 * v); + pssm_coord /= pssm_coord.w; + + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.z; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale3 * test_radius; + shadow2 = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow2 = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + pssm_blend = smoothstep(directional_lights.data[i].shadow_split_offsets.x, directional_lights.data[i].shadow_split_offsets.y, depth_z); + + shadow_color_blend = directional_lights.data[i].shadow_color3.rgb; + } else if (depth_z < directional_lights.data[i].shadow_split_offsets.z) { + vec4 v = vec4(vertex, 1.0); + BIAS_FUNC(v, 3) + pssm_coord = (directional_lights.data[i].shadow_matrix4 * v); + pssm_coord /= pssm_coord.w; + if (directional_lights.data[i].softshadow_angle > 0) { + float range_pos = dot(directional_lights.data[i].direction, v.xyz); + float range_begin = directional_lights.data[i].shadow_range_begin.w; + float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; + vec2 tex_scale = directional_lights.data[i].uv_scale4 * test_radius; + shadow2 = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); + } else { + shadow2 = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); + } + + pssm_blend = smoothstep(directional_lights.data[i].shadow_split_offsets.y, directional_lights.data[i].shadow_split_offsets.z, depth_z); + shadow_color_blend = directional_lights.data[i].shadow_color4.rgb; + } else { + pssm_blend = 0.0; //if no blend, same coord will be used (divide by z will result in same value, and already cached) + } + + pssm_blend = sqrt(pssm_blend); + + shadow = mix(shadow, shadow2, pssm_blend); + shadow_color = mix(shadow_color, shadow_color_blend, pssm_blend); + } + + shadow = mix(shadow, 1.0, smoothstep(directional_lights.data[i].fade_from, directional_lights.data[i].fade_to, vertex.z)); //done with negative values for performance + + shadow_attenuation = mix(shadow_color, vec3(1.0), shadow); + +#undef BIAS_FUNC + } + + light_compute(normal, directional_lights.data[i].direction, normalize(view), directional_lights.data[i].size, directional_lights.data[i].color * directional_lights.data[i].energy, 1.0, shadow_attenuation, albedo, roughness, metallic, specular, directional_lights.data[i].specular * specular_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + transmittance_color, + transmittance_depth, + transmittance_curve, + transmittance_boost, + transmittance_z, +#endif +#ifdef LIGHT_RIM_USED + rim, rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + binormal, tangent, anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + alpha, +#endif + diffuse_light, + specular_light); + } + } + + { //omni lights + + uint omni_light_count = cluster_cell.x >> CLUSTER_COUNTER_SHIFT; + uint omni_light_pointer = cluster_cell.x & CLUSTER_POINTER_MASK; + + for (uint i = 0; i < omni_light_count; i++) { + uint light_index = cluster_data.indices[omni_light_pointer + i]; + + if (!bool(lights.data[light_index].mask & instances.data[instance_index].layer_mask)) { + continue; //not masked + } + + light_process_omni(light_index, vertex, view, normal, vertex_ddx, vertex_ddy, albedo, roughness, metallic, specular, specular_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + transmittance_color, + transmittance_depth, + transmittance_curve, + transmittance_boost, +#endif +#ifdef LIGHT_RIM_USED + rim, + rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + tangent, binormal, anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + alpha, +#endif + diffuse_light, specular_light); + } + } + + { //spot lights + uint spot_light_count = cluster_cell.y >> CLUSTER_COUNTER_SHIFT; + uint spot_light_pointer = cluster_cell.y & CLUSTER_POINTER_MASK; + + for (uint i = 0; i < spot_light_count; i++) { + uint light_index = cluster_data.indices[spot_light_pointer + i]; + + if (!bool(lights.data[light_index].mask & instances.data[instance_index].layer_mask)) { + continue; //not masked + } + + light_process_spot(light_index, vertex, view, normal, vertex_ddx, vertex_ddy, albedo, roughness, metallic, specular, specular_blob_intensity, +#ifdef LIGHT_BACKLIGHT_USED + backlight, +#endif +#ifdef LIGHT_TRANSMITTANCE_USED + transmittance_color, + transmittance_depth, + transmittance_curve, + transmittance_boost, +#endif +#ifdef LIGHT_RIM_USED + rim, + rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_gloss, +#endif +#ifdef LIGHT_ANISOTROPY_USED + tangent, binormal, anisotropy, +#endif +#ifdef USE_SHADOW_TO_OPACITY + alpha, +#endif + diffuse_light, specular_light); + } + } + +#ifdef USE_SHADOW_TO_OPACITY + alpha = min(alpha, clamp(length(ambient_light), 0.0, 1.0)); + +#if defined(ALPHA_SCISSOR_USED) + if (alpha < alpha_scissor) { + discard; + } +#endif // ALPHA_SCISSOR_USED + +#ifdef USE_OPAQUE_PREPASS + + if (alpha < opaque_prepass_threshold) { + discard; + } + +#endif // USE_OPAQUE_PREPASS + +#endif // USE_SHADOW_TO_OPACITY + +#endif //!defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) + +#ifdef MODE_RENDER_DEPTH + +#ifdef MODE_RENDER_SDF + + { + vec3 local_pos = (scene_data.sdf_to_bounds * vec4(vertex, 1.0)).xyz; + ivec3 grid_pos = scene_data.sdf_offset + ivec3(local_pos * vec3(scene_data.sdf_size)); + + uint albedo16 = 0x1; //solid flag + albedo16 |= clamp(uint(albedo.r * 31.0), 0, 31) << 11; + albedo16 |= clamp(uint(albedo.g * 31.0), 0, 31) << 6; + albedo16 |= clamp(uint(albedo.b * 31.0), 0, 31) << 1; + + imageStore(albedo_volume_grid, grid_pos, uvec4(albedo16)); + + uint facing_bits = 0; + const vec3 aniso_dir[6] = vec3[]( + vec3(1, 0, 0), + vec3(0, 1, 0), + vec3(0, 0, 1), + vec3(-1, 0, 0), + vec3(0, -1, 0), + vec3(0, 0, -1)); + + vec3 cam_normal = mat3(scene_data.camera_matrix) * normalize(normal_interp); + + float closest_dist = -1e20; + + for (uint i = 0; i < 6; i++) { + float d = dot(cam_normal, aniso_dir[i]); + if (d > closest_dist) { + closest_dist = d; + facing_bits = (1 << i); + } + } + + imageAtomicOr(geom_facing_grid, grid_pos, facing_bits); //store facing bits + + if (length(emission) > 0.001) { + float lumas[6]; + vec3 light_total = vec3(0); + + for (int i = 0; i < 6; i++) { + float strength = max(0.0, dot(cam_normal, aniso_dir[i])); + vec3 light = emission * strength; + light_total += light; + lumas[i] = max(light.r, max(light.g, light.b)); + } + + float luma_total = max(light_total.r, max(light_total.g, light_total.b)); + + uint light_aniso = 0; + + for (int i = 0; i < 6; i++) { + light_aniso |= min(31, uint((lumas[i] / luma_total) * 31.0)) << (i * 5); + } + + //compress to RGBE9995 to save space + + const float pow2to9 = 512.0f; + const float B = 15.0f; + const float N = 9.0f; + const float LN2 = 0.6931471805599453094172321215; + + float cRed = clamp(light_total.r, 0.0, 65408.0); + float cGreen = clamp(light_total.g, 0.0, 65408.0); + float cBlue = clamp(light_total.b, 0.0, 65408.0); + + float cMax = max(cRed, max(cGreen, cBlue)); + + float expp = max(-B - 1.0f, floor(log(cMax) / LN2)) + 1.0f + B; + + float sMax = floor((cMax / pow(2.0f, expp - B - N)) + 0.5f); + + float exps = expp + 1.0f; + + if (0.0 <= sMax && sMax < pow2to9) { + exps = expp; + } + + float sRed = floor((cRed / pow(2.0f, exps - B - N)) + 0.5f); + float sGreen = floor((cGreen / pow(2.0f, exps - B - N)) + 0.5f); + float sBlue = floor((cBlue / pow(2.0f, exps - B - N)) + 0.5f); + //store as 8985 to have 2 extra neighbour bits + uint light_rgbe = ((uint(sRed) & 0x1FF) >> 1) | ((uint(sGreen) & 0x1FF) << 8) | (((uint(sBlue) & 0x1FF) >> 1) << 17) | ((uint(exps) & 0x1F) << 25); + + imageStore(emission_grid, grid_pos, uvec4(light_rgbe)); + imageStore(emission_aniso_grid, grid_pos, uvec4(light_aniso)); + } + } + +#endif + +#ifdef MODE_RENDER_MATERIAL + + albedo_output_buffer.rgb = albedo; + albedo_output_buffer.a = alpha; + + normal_output_buffer.rgb = normal * 0.5 + 0.5; + normal_output_buffer.a = 0.0; + depth_output_buffer.r = -vertex.z; + +#if defined(AO_USED) + orm_output_buffer.r = ao; +#else + orm_output_buffer.r = 0.0; +#endif + orm_output_buffer.g = roughness; + orm_output_buffer.b = metallic; + orm_output_buffer.a = sss_strength; + + emission_output_buffer.rgb = emission; + emission_output_buffer.a = 0.0; +#endif + +#ifdef MODE_RENDER_NORMAL_ROUGHNESS + normal_roughness_output_buffer = vec4(normal * 0.5 + 0.5, roughness); + +#ifdef MODE_RENDER_GIPROBE + if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes + uint index1 = instances.data[instance_index].gi_offset & 0xFFFF; + uint index2 = instances.data[instance_index].gi_offset >> 16; + giprobe_buffer.x = index1 & 0xFF; + giprobe_buffer.y = index2 & 0xFF; + } else { + giprobe_buffer.x = 0xFF; + giprobe_buffer.y = 0xFF; + } +#endif + +#endif //MODE_RENDER_NORMAL + +//nothing happens, so a tree-ssa optimizer will result in no fragment shader :) +#else + + specular_light *= scene_data.reflection_multiplier; + ambient_light *= albedo; //ambient must be multiplied by albedo at the end + +//ambient occlusion +#if defined(AO_USED) + +#ifndef LOW_END_MODE + if (scene_data.ssao_enabled && scene_data.ssao_ao_affect > 0.0) { + float ssao = texture(sampler2D(ao_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), screen_uv).r; + ao = mix(ao, min(ao, ssao), scene_data.ssao_ao_affect); + ao_light_affect = mix(ao_light_affect, max(ao_light_affect, scene_data.ssao_light_affect), scene_data.ssao_ao_affect); + } +#endif //LOW_END_MODE + + ambient_light = mix(scene_data.ao_color.rgb, ambient_light, ao); + ao_light_affect = mix(1.0, ao, ao_light_affect); + specular_light = mix(scene_data.ao_color.rgb, specular_light, ao_light_affect); + diffuse_light = mix(scene_data.ao_color.rgb, diffuse_light, ao_light_affect); +#else + +#ifndef LOW_END_MODE + if (scene_data.ssao_enabled) { + float ao = texture(sampler2D(ao_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), screen_uv).r; + ambient_light = mix(scene_data.ao_color.rgb, ambient_light, ao); + float ao_light_affect = mix(1.0, ao, scene_data.ssao_light_affect); + specular_light = mix(scene_data.ao_color.rgb, specular_light, ao_light_affect); + diffuse_light = mix(scene_data.ao_color.rgb, diffuse_light, ao_light_affect); + } +#endif //LOW_END_MODE + +#endif // AO_USED + + // base color remapping + diffuse_light *= 1.0 - metallic; // TODO: avoid all diffuse and ambient light calculations when metallic == 1 up to this point + ambient_light *= 1.0 - metallic; + +#ifdef MODE_MULTIPLE_RENDER_TARGETS + +#ifdef MODE_UNSHADED + diffuse_buffer = vec4(albedo.rgb, 0.0); + specular_buffer = vec4(0.0); + +#else + +#ifdef SSS_MODE_SKIN + sss_strength = -sss_strength; +#endif + diffuse_buffer = vec4(emission + diffuse_light + ambient_light, sss_strength); + specular_buffer = vec4(specular_light, metallic); +#endif + + // Draw "fixed" fog before volumetric fog to ensure volumetric fog can appear in front of the sky. + if (scene_data.fog_enabled) { + vec4 fog = fog_process(vertex); + diffuse_buffer.rgb = mix(diffuse_buffer.rgb, fog.rgb, fog.a); + specular_buffer.rgb = mix(specular_buffer.rgb, vec3(0.0), fog.a); + } + +#ifndef LOW_END_MODE + if (scene_data.volumetric_fog_enabled) { + vec4 fog = volumetric_fog_process(screen_uv, -vertex.z); + diffuse_buffer.rgb = mix(diffuse_buffer.rgb, fog.rgb, fog.a); + specular_buffer.rgb = mix(specular_buffer.rgb, vec3(0.0), fog.a); + } +#endif // LOW_END_MODE + +#if defined(CUSTOM_FOG_USED) + diffuse_buffer.rgb = mix(diffuse_buffer.rgb, custom_fog.rgb, custom_fog.a); + specular_buffer.rgb = mix(specular_buffer.rgb, vec3(0.0), custom_fog.a); +#endif //CUSTOM_FOG_USED + +#else //MODE_MULTIPLE_RENDER_TARGETS + +#ifdef MODE_UNSHADED + frag_color = vec4(albedo, alpha); +#else + frag_color = vec4(emission + ambient_light + diffuse_light + specular_light, alpha); + //frag_color = vec4(1.0); +#endif //USE_NO_SHADING + + // Draw "fixed" fog before volumetric fog to ensure volumetric fog can appear in front of the sky. + if (scene_data.fog_enabled) { + vec4 fog = fog_process(vertex); + frag_color.rgb = mix(frag_color.rgb, fog.rgb, fog.a); + } +#ifndef LOW_END_MODE + if (scene_data.volumetric_fog_enabled) { + vec4 fog = volumetric_fog_process(screen_uv, -vertex.z); + frag_color.rgb = mix(frag_color.rgb, fog.rgb, fog.a); + } +#endif + +#if defined(CUSTOM_FOG_USED) + frag_color.rgb = mix(frag_color.rgb, custom_fog.rgb, custom_fog.a); +#endif //CUSTOM_FOG_USED + +#endif //MODE_MULTIPLE_RENDER_TARGETS + +#endif //MODE_RENDER_DEPTH +} diff --git a/servers/rendering/renderer_rd/shaders/scene_forward_inc.glsl b/servers/rendering/renderer_rd/shaders/scene_forward_inc.glsl new file mode 100644 index 0000000000..d18581c1b3 --- /dev/null +++ b/servers/rendering/renderer_rd/shaders/scene_forward_inc.glsl @@ -0,0 +1,332 @@ +#define M_PI 3.14159265359 +#define ROUGHNESS_MAX_LOD 5 + +#define MAX_GI_PROBES 8 + +#include "cluster_data_inc.glsl" + +layout(push_constant, binding = 0, std430) uniform DrawCall { + uint instance_index; + uint pad; //16 bits minimum size + vec2 bake_uv2_offset; //used for bake to uv2, ignored otherwise +} +draw_call; + +/* Set 0 Scene data that never changes, ever */ + +#define SAMPLER_NEAREST_CLAMP 0 +#define SAMPLER_LINEAR_CLAMP 1 +#define SAMPLER_NEAREST_WITH_MIPMAPS_CLAMP 2 +#define SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP 3 +#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_CLAMP 4 +#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_CLAMP 5 +#define SAMPLER_NEAREST_REPEAT 6 +#define SAMPLER_LINEAR_REPEAT 7 +#define SAMPLER_NEAREST_WITH_MIPMAPS_REPEAT 8 +#define SAMPLER_LINEAR_WITH_MIPMAPS_REPEAT 9 +#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_REPEAT 10 +#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_REPEAT 11 + +layout(set = 0, binding = 1) uniform sampler material_samplers[12]; + +layout(set = 0, binding = 2) uniform sampler shadow_sampler; + +#define SDFGI_MAX_CASCADES 8 + +layout(set = 0, binding = 3, std140) uniform SceneData { + mat4 projection_matrix; + mat4 inv_projection_matrix; + + mat4 camera_matrix; + mat4 inv_camera_matrix; + + vec2 viewport_size; + vec2 screen_pixel_size; + + //use vec4s because std140 doesnt play nice with vec2s, z and w are wasted + vec4 directional_penumbra_shadow_kernel[32]; + vec4 directional_soft_shadow_kernel[32]; + vec4 penumbra_shadow_kernel[32]; + vec4 soft_shadow_kernel[32]; + + uint directional_penumbra_shadow_samples; + uint directional_soft_shadow_samples; + uint penumbra_shadow_samples; + uint soft_shadow_samples; + + vec4 ambient_light_color_energy; + + float ambient_color_sky_mix; + bool use_ambient_light; + bool use_ambient_cubemap; + bool use_reflection_cubemap; + + mat3 radiance_inverse_xform; + + vec2 shadow_atlas_pixel_size; + vec2 directional_shadow_pixel_size; + + uint directional_light_count; + float dual_paraboloid_side; + float z_far; + float z_near; + + bool ssao_enabled; + float ssao_light_affect; + float ssao_ao_affect; + bool roughness_limiter_enabled; + + float roughness_limiter_amount; + float roughness_limiter_limit; + uvec2 roughness_limiter_pad; + + vec4 ao_color; + + mat4 sdf_to_bounds; + + ivec3 sdf_offset; + bool material_uv2_mode; + + ivec3 sdf_size; + bool gi_upscale_for_msaa; + + bool volumetric_fog_enabled; + float volumetric_fog_inv_length; + float volumetric_fog_detail_spread; + uint volumetric_fog_pad; + + bool fog_enabled; + float fog_density; + float fog_height; + float fog_height_density; + + vec3 fog_light_color; + float fog_sun_scatter; + + float fog_aerial_perspective; + + float time; + float reflection_multiplier; // one normally, zero when rendering reflections + + bool pancake_shadows; +} + +scene_data; + +#define INSTANCE_FLAGS_USE_GI_BUFFERS (1 << 6) +#define INSTANCE_FLAGS_USE_SDFGI (1 << 7) +#define INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE (1 << 8) +#define INSTANCE_FLAGS_USE_LIGHTMAP (1 << 9) +#define INSTANCE_FLAGS_USE_SH_LIGHTMAP (1 << 10) +#define INSTANCE_FLAGS_USE_GIPROBE (1 << 11) +#define INSTANCE_FLAGS_MULTIMESH (1 << 12) +#define INSTANCE_FLAGS_MULTIMESH_FORMAT_2D (1 << 13) +#define INSTANCE_FLAGS_MULTIMESH_HAS_COLOR (1 << 14) +#define INSTANCE_FLAGS_MULTIMESH_HAS_CUSTOM_DATA (1 << 15) +#define INSTANCE_FLAGS_MULTIMESH_STRIDE_SHIFT 16 +//3 bits of stride +#define INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK 0x7 + +#define INSTANCE_FLAGS_SKELETON (1 << 19) + +struct InstanceData { + mat4 transform; + mat4 normal_transform; + uint flags; + uint instance_uniforms_ofs; //base offset in global buffer for instance variables + uint gi_offset; //GI information when using lightmapping (VCT or lightmap index) + uint layer_mask; + vec4 lightmap_uv_scale; +}; + +layout(set = 0, binding = 4, std430) restrict readonly buffer Instances { + InstanceData data[]; +} +instances; + +layout(set = 0, binding = 5, std430) restrict readonly buffer Lights { + LightData data[]; +} +lights; + +layout(set = 0, binding = 6) buffer restrict readonly ReflectionProbeData { + ReflectionData data[]; +} +reflections; + +layout(set = 0, binding = 7, std140) uniform DirectionalLights { + DirectionalLightData data[MAX_DIRECTIONAL_LIGHT_DATA_STRUCTS]; +} +directional_lights; + +#define LIGHTMAP_FLAG_USE_DIRECTION 1 +#define LIGHTMAP_FLAG_USE_SPECULAR_DIRECTION 2 + +struct Lightmap { + mat3 normal_xform; +}; + +layout(set = 0, binding = 10, std140) restrict readonly buffer Lightmaps { + Lightmap data[]; +} +lightmaps; + +layout(set = 0, binding = 11) uniform texture2DArray lightmap_textures[MAX_LIGHTMAP_TEXTURES]; + +struct LightmapCapture { + vec4 sh[9]; +}; + +layout(set = 0, binding = 12, std140) restrict readonly buffer LightmapCaptures { + LightmapCapture data[]; +} +lightmap_captures; + +layout(set = 0, binding = 13) uniform texture2D decal_atlas; +layout(set = 0, binding = 14) uniform texture2D decal_atlas_srgb; + +layout(set = 0, binding = 15, std430) restrict readonly buffer Decals { + DecalData data[]; +} +decals; + +layout(set = 0, binding = 16) uniform utexture3D cluster_texture; + +layout(set = 0, binding = 17, std430) restrict readonly buffer ClusterData { + uint indices[]; +} +cluster_data; + +layout(set = 0, binding = 18) uniform texture2D directional_shadow_atlas; + +layout(set = 0, binding = 19, std430) restrict readonly buffer GlobalVariableData { + vec4 data[]; +} +global_variables; + +#ifndef LOW_END_MODE + +struct SDFGIProbeCascadeData { + vec3 position; + float to_probe; + ivec3 probe_world_offset; + float to_cell; // 1/bounds * grid_size +}; + +layout(set = 0, binding = 20, std140) uniform SDFGI { + vec3 grid_size; + uint max_cascades; + + bool use_occlusion; + int probe_axis_size; + float probe_to_uvw; + float normal_bias; + + vec3 lightprobe_tex_pixel_size; + float energy; + + vec3 lightprobe_uv_offset; + float y_mult; + + vec3 occlusion_clamp; + uint pad3; + + vec3 occlusion_renormalize; + uint pad4; + + vec3 cascade_probe_size; + uint pad5; + + SDFGIProbeCascadeData cascades[SDFGI_MAX_CASCADES]; +} +sdfgi; + +#endif //LOW_END_MODE + +// decal atlas + +/* Set 1, Radiance */ + +#ifdef USE_RADIANCE_CUBEMAP_ARRAY + +layout(set = 1, binding = 0) uniform textureCubeArray radiance_cubemap; + +#else + +layout(set = 1, binding = 0) uniform textureCube radiance_cubemap; + +#endif + +/* Set 2, Reflection and Shadow Atlases (view dependent) */ + +layout(set = 1, binding = 1) uniform textureCubeArray reflection_atlas; + +layout(set = 1, binding = 2) uniform texture2D shadow_atlas; + +#ifndef LOW_END_MODE +layout(set = 1, binding = 3) uniform texture3D gi_probe_textures[MAX_GI_PROBES]; +#endif + +/* Set 3, Render Buffers */ + +#ifdef MODE_RENDER_SDF + +layout(r16ui, set = 1, binding = 4) uniform restrict writeonly uimage3D albedo_volume_grid; +layout(r32ui, set = 1, binding = 5) uniform restrict writeonly uimage3D emission_grid; +layout(r32ui, set = 1, binding = 6) uniform restrict writeonly uimage3D emission_aniso_grid; +layout(r32ui, set = 1, binding = 7) uniform restrict uimage3D geom_facing_grid; + +//still need to be present for shaders that use it, so remap them to something +#define depth_buffer shadow_atlas +#define color_buffer shadow_atlas +#define normal_roughness_buffer shadow_atlas + +#else + +layout(set = 1, binding = 4) uniform texture2D depth_buffer; +layout(set = 1, binding = 5) uniform texture2D color_buffer; + +#ifndef LOW_END_MODE + +layout(set = 1, binding = 6) uniform texture2D normal_roughness_buffer; +layout(set = 1, binding = 7) uniform texture2D ao_buffer; +layout(set = 1, binding = 8) uniform texture2D ambient_buffer; +layout(set = 1, binding = 9) uniform texture2D reflection_buffer; +layout(set = 1, binding = 10) uniform texture2DArray sdfgi_lightprobe_texture; +layout(set = 1, binding = 11) uniform texture3D sdfgi_occlusion_cascades; + +struct GIProbeData { + mat4 xform; + vec3 bounds; + float dynamic_range; + + float bias; + float normal_bias; + bool blend_ambient; + uint texture_slot; + + float anisotropy_strength; + float ambient_occlusion; + float ambient_occlusion_size; + uint mipmaps; +}; + +layout(set = 1, binding = 12, std140) uniform GIProbes { + GIProbeData data[MAX_GI_PROBES]; +} +gi_probes; + +layout(set = 1, binding = 13) uniform texture3D volumetric_fog_texture; + +#endif // LOW_END_MODE + +#endif + +/* Set 4 Skeleton & Instancing (Multimesh) */ + +layout(set = 2, binding = 0, std430) restrict readonly buffer Transforms { + vec4 data[]; +} +transforms; + +/* Set 5 User Material */ diff --git a/servers/rendering/renderer_rd/shaders/scene_high_end.glsl b/servers/rendering/renderer_rd/shaders/scene_high_end.glsl deleted file mode 100644 index 5d87dec79f..0000000000 --- a/servers/rendering/renderer_rd/shaders/scene_high_end.glsl +++ /dev/null @@ -1,2912 +0,0 @@ -#[vertex] - -#version 450 - -VERSION_DEFINES - -#include "scene_high_end_inc.glsl" - -/* INPUT ATTRIBS */ - -layout(location = 0) in vec3 vertex_attrib; -layout(location = 1) in vec3 normal_attrib; -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) -layout(location = 2) in vec4 tangent_attrib; -#endif - -#if defined(COLOR_USED) -layout(location = 3) in vec4 color_attrib; -#endif - -layout(location = 4) in vec2 uv_attrib; - -#if defined(UV2_USED) || defined(USE_LIGHTMAP) || defined(MODE_RENDER_MATERIAL) -layout(location = 5) in vec2 uv2_attrib; -#endif - -#if defined(CUSTOM0_USED) -layout(location = 6) in vec4 custom0_attrib; -#endif - -#if defined(CUSTOM1_USED) -layout(location = 7) in vec4 custom1_attrib; -#endif - -#if defined(CUSTOM2_USED) -layout(location = 8) in vec4 custom2_attrib; -#endif - -#if defined(CUSTOM3_USED) -layout(location = 9) in vec4 custom3_attrib; -#endif - -#if defined(BONES_USED) -layout(location = 10) in uvec4 bone_attrib; -#endif - -#if defined(WEIGHTS_USED) -layout(location = 11) in vec4 weight_attrib; -#endif - -/* Varyings */ - -layout(location = 0) out vec3 vertex_interp; -layout(location = 1) out vec3 normal_interp; - -#if defined(COLOR_USED) -layout(location = 2) out vec4 color_interp; -#endif - -layout(location = 3) out vec2 uv_interp; - -#if defined(UV2_USED) || defined(USE_LIGHTMAP) -layout(location = 4) out vec2 uv2_interp; -#endif - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) -layout(location = 5) out vec3 tangent_interp; -layout(location = 6) out vec3 binormal_interp; -#endif - -#ifdef USE_MATERIAL_UNIFORMS -layout(set = MATERIAL_UNIFORM_SET, binding = 0, std140) uniform MaterialUniforms{ - /* clang-format off */ -MATERIAL_UNIFORMS - /* clang-format on */ -} material; -#endif - -/* clang-format off */ - -VERTEX_SHADER_GLOBALS - -/* clang-format on */ - -invariant gl_Position; - -layout(location = 7) flat out uint instance_index; - -#ifdef MODE_DUAL_PARABOLOID - -layout(location = 8) out float dp_clip; - -#endif - -void main() { - instance_index = draw_call.instance_index; - vec4 instance_custom = vec4(0.0); -#if defined(COLOR_USED) - color_interp = color_attrib; -#endif - - mat4 world_matrix = instances.data[instance_index].transform; - mat3 world_normal_matrix = mat3(instances.data[instance_index].normal_transform); - - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH)) { - //multimesh, instances are for it - uint offset = (instances.data[instance_index].flags >> INSTANCE_FLAGS_MULTIMESH_STRIDE_SHIFT) & INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK; - offset *= gl_InstanceIndex; - - mat4 matrix; - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_FORMAT_2D)) { - matrix = mat4(transforms.data[offset + 0], transforms.data[offset + 1], vec4(0.0, 0.0, 1.0, 0.0), vec4(0.0, 0.0, 0.0, 1.0)); - offset += 2; - } else { - matrix = mat4(transforms.data[offset + 0], transforms.data[offset + 1], transforms.data[offset + 2], vec4(0.0, 0.0, 0.0, 1.0)); - offset += 3; - } - - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_HAS_COLOR)) { -#ifdef COLOR_USED - color_interp *= transforms.data[offset]; -#endif - offset += 1; - } - - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_MULTIMESH_HAS_CUSTOM_DATA)) { - instance_custom = transforms.data[offset]; - } - - //transpose - matrix = transpose(matrix); - world_matrix = world_matrix * matrix; - world_normal_matrix = world_normal_matrix * mat3(matrix); - - } else { - //not a multimesh, instances are for multiple draw calls - instance_index += gl_InstanceIndex; - } - - vec3 vertex = vertex_attrib; - vec3 normal = normal_attrib * 2.0 - 1.0; - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - vec3 tangent = tangent_attrib.xyz * 2.0 - 1.0; - float binormalf = tangent_attrib.a * 2.0 - 1.0; - vec3 binormal = normalize(cross(normal, tangent) * binormalf); -#endif - -#if 0 - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_SKELETON)) { - //multimesh, instances are for it - - uvec2 bones_01 = uvec2(bone_attrib.x & 0xFFFF, bone_attrib.x >> 16) * 3; - uvec2 bones_23 = uvec2(bone_attrib.y & 0xFFFF, bone_attrib.y >> 16) * 3; - vec2 weights_01 = unpackUnorm2x16(bone_attrib.z); - vec2 weights_23 = unpackUnorm2x16(bone_attrib.w); - - mat4 m = mat4(transforms.data[bones_01.x], transforms.data[bones_01.x + 1], transforms.data[bones_01.x + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_01.x; - m += mat4(transforms.data[bones_01.y], transforms.data[bones_01.y + 1], transforms.data[bones_01.y + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_01.y; - m += mat4(transforms.data[bones_23.x], transforms.data[bones_23.x + 1], transforms.data[bones_23.x + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_23.x; - m += mat4(transforms.data[bones_23.y], transforms.data[bones_23.y + 1], transforms.data[bones_23.y + 2], vec4(0.0, 0.0, 0.0, 1.0)) * weights_23.y; - - //reverse order because its transposed - vertex = (vec4(vertex, 1.0) * m).xyz; - normal = (vec4(normal, 0.0) * m).xyz; - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - - tangent = (vec4(tangent, 0.0) * m).xyz; - binormal = (vec4(binormal, 0.0) * m).xyz; -#endif - } -#endif - uv_interp = uv_attrib; - -#if defined(UV2_USED) || defined(USE_LIGHTMAP) - uv2_interp = uv2_attrib; -#endif - -#ifdef USE_OVERRIDE_POSITION - vec4 position; -#endif - - mat4 projection_matrix = scene_data.projection_matrix; - -//using world coordinates -#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - - vertex = (world_matrix * vec4(vertex, 1.0)).xyz; - - normal = world_normal_matrix * normal; - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - - tangent = world_normal_matrix * tangent; - binormal = world_normal_matrix * binormal; - -#endif -#endif - - float roughness = 1.0; - - mat4 modelview = scene_data.inv_camera_matrix * world_matrix; - mat3 modelview_normal = mat3(scene_data.inv_camera_matrix) * world_normal_matrix; - - { - /* clang-format off */ - -VERTEX_SHADER_CODE - - /* clang-format on */ - } - -// using local coordinates (default) -#if !defined(SKIP_TRANSFORM_USED) && !defined(VERTEX_WORLD_COORDS_USED) - - vertex = (modelview * vec4(vertex, 1.0)).xyz; - normal = modelview_normal * normal; -#endif - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - - binormal = modelview_normal * binormal; - tangent = modelview_normal * tangent; -#endif - -//using world coordinates -#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - - vertex = (scene_data.inv_camera_matrix * vec4(vertex, 1.0)).xyz; - normal = mat3(scene_data.inverse_normal_matrix) * normal; - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - - binormal = mat3(scene_data.camera_inverse_binormal_matrix) * binormal; - tangent = mat3(scene_data.camera_inverse_tangent_matrix) * tangent; -#endif -#endif - - vertex_interp = vertex; - normal_interp = normal; - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - tangent_interp = tangent; - binormal_interp = binormal; -#endif - -#ifdef MODE_RENDER_DEPTH - -#ifdef MODE_DUAL_PARABOLOID - - vertex_interp.z *= scene_data.dual_paraboloid_side; - normal_interp.z *= scene_data.dual_paraboloid_side; - - dp_clip = vertex_interp.z; //this attempts to avoid noise caused by objects sent to the other parabolloid side due to bias - - //for dual paraboloid shadow mapping, this is the fastest but least correct way, as it curves straight edges - - vec3 vtx = vertex_interp; - float distance = length(vtx); - vtx = normalize(vtx); - vtx.xy /= 1.0 - vtx.z; - vtx.z = (distance / scene_data.z_far); - vtx.z = vtx.z * 2.0 - 1.0; - vertex_interp = vtx; - -#endif - -#endif //MODE_RENDER_DEPTH - -#ifdef USE_OVERRIDE_POSITION - gl_Position = position; -#else - gl_Position = projection_matrix * vec4(vertex_interp, 1.0); -#endif - -#ifdef MODE_RENDER_DEPTH - if (scene_data.pancake_shadows) { - if (gl_Position.z <= 0.00001) { - gl_Position.z = 0.00001; - } - } -#endif -#ifdef MODE_RENDER_MATERIAL - if (scene_data.material_uv2_mode) { - gl_Position.xy = (uv2_attrib.xy + draw_call.bake_uv2_offset) * 2.0 - 1.0; - gl_Position.z = 0.00001; - gl_Position.w = 1.0; - } -#endif -} - -#[fragment] - -#version 450 - -VERSION_DEFINES - -#include "scene_high_end_inc.glsl" - -/* Varyings */ - -layout(location = 0) in vec3 vertex_interp; -layout(location = 1) in vec3 normal_interp; - -#if defined(COLOR_USED) -layout(location = 2) in vec4 color_interp; -#endif - -layout(location = 3) in vec2 uv_interp; - -#if defined(UV2_USED) || defined(USE_LIGHTMAP) -layout(location = 4) in vec2 uv2_interp; -#endif - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) -layout(location = 5) in vec3 tangent_interp; -layout(location = 6) in vec3 binormal_interp; -#endif - -layout(location = 7) flat in uint instance_index; - -#ifdef MODE_DUAL_PARABOLOID - -layout(location = 8) in float dp_clip; - -#endif - -//defines to keep compatibility with vertex - -#define world_matrix instances.data[instance_index].transform -#define world_normal_matrix instances.data[instance_index].normal_transform -#define projection_matrix scene_data.projection_matrix - -#if defined(ENABLE_SSS) && defined(ENABLE_TRANSMITTANCE) -//both required for transmittance to be enabled -#define LIGHT_TRANSMITTANCE_USED -#endif - -#ifdef USE_MATERIAL_UNIFORMS -layout(set = MATERIAL_UNIFORM_SET, binding = 0, std140) uniform MaterialUniforms{ - /* clang-format off */ -MATERIAL_UNIFORMS - /* clang-format on */ -} material; -#endif - -/* clang-format off */ - -FRAGMENT_SHADER_GLOBALS - -/* clang-format on */ - -#ifdef MODE_RENDER_DEPTH - -#ifdef MODE_RENDER_MATERIAL - -layout(location = 0) out vec4 albedo_output_buffer; -layout(location = 1) out vec4 normal_output_buffer; -layout(location = 2) out vec4 orm_output_buffer; -layout(location = 3) out vec4 emission_output_buffer; -layout(location = 4) out float depth_output_buffer; - -#endif - -#ifdef MODE_RENDER_NORMAL_ROUGHNESS -layout(location = 0) out vec4 normal_roughness_output_buffer; - -#ifdef MODE_RENDER_GIPROBE -layout(location = 1) out uvec2 giprobe_buffer; -#endif - -#endif //MODE_RENDER_NORMAL -#else // RENDER DEPTH - -#ifdef MODE_MULTIPLE_RENDER_TARGETS - -layout(location = 0) out vec4 diffuse_buffer; //diffuse (rgb) and roughness -layout(location = 1) out vec4 specular_buffer; //specular and SSS (subsurface scatter) -#else - -layout(location = 0) out vec4 frag_color; -#endif - -#endif // RENDER DEPTH - -#ifdef ALPHA_HASH_USED - -float hash_2d(vec2 p) { - return fract(1.0e4 * sin(17.0 * p.x + 0.1 * p.y) * - (0.1 + abs(sin(13.0 * p.y + p.x)))); -} - -float hash_3d(vec3 p) { - return hash_2d(vec2(hash_2d(p.xy), p.z)); -} - -float compute_alpha_hash_threshold(vec3 pos, float hash_scale) { - vec3 dx = dFdx(pos); - vec3 dy = dFdx(pos); - float delta_max_sqr = max(length(dx), length(dy)); - float pix_scale = 1.0 / (hash_scale * delta_max_sqr); - - vec2 pix_scales = - vec2(exp2(floor(log2(pix_scale))), exp2(ceil(log2(pix_scale)))); - - vec2 a_thresh = vec2(hash_3d(floor(pix_scales.x * pos.xyz)), - hash_3d(floor(pix_scales.y * pos.xyz))); - - float lerp_factor = fract(log2(pix_scale)); - - float a_interp = (1.0 - lerp_factor) * a_thresh.x + lerp_factor * a_thresh.y; - - float min_lerp = min(lerp_factor, 1.0 - lerp_factor); - - vec3 cases = vec3(a_interp * a_interp / (2.0 * min_lerp * (1.0 - min_lerp)), - (a_interp - 0.5 * min_lerp) / (1.0 - min_lerp), - 1.0 - ((1.0 - a_interp) * (1.0 - a_interp) / - (2.0 * min_lerp * (1.0 - min_lerp)))); - - float alpha_hash_threshold = - (lerp_factor < (1.0 - min_lerp)) ? ((lerp_factor < min_lerp) ? cases.x : cases.y) : cases.z; - - return clamp(alpha_hash_threshold, 0.0, 1.0); -} - -#endif // ALPHA_HASH_USED - -#ifdef ALPHA_ANTIALIASING_EDGE_USED - -float calc_mip_level(vec2 texture_coord) { - vec2 dx = dFdx(texture_coord); - vec2 dy = dFdy(texture_coord); - float delta_max_sqr = max(dot(dx, dx), dot(dy, dy)); - return max(0.0, 0.5 * log2(delta_max_sqr)); -} - -float compute_alpha_antialiasing_edge(float input_alpha, vec2 texture_coord, float alpha_edge) { - input_alpha *= 1.0 + max(0, calc_mip_level(texture_coord)) * 0.25; // 0.25 mip scale, magic number - input_alpha = (input_alpha - alpha_edge) / max(fwidth(input_alpha), 0.0001) + 0.5; - return clamp(input_alpha, 0.0, 1.0); -} - -#endif // ALPHA_ANTIALIASING_USED - -// This returns the G_GGX function divided by 2 cos_theta_m, where in practice cos_theta_m is either N.L or N.V. -// We're dividing this factor off because the overall term we'll end up looks like -// (see, for example, the first unnumbered equation in B. Burley, "Physically Based Shading at Disney", SIGGRAPH 2012): -// -// F(L.V) D(N.H) G(N.L) G(N.V) / (4 N.L N.V) -// -// We're basically regouping this as -// -// F(L.V) D(N.H) [G(N.L)/(2 N.L)] [G(N.V) / (2 N.V)] -// -// and thus, this function implements the [G(N.m)/(2 N.m)] part with m = L or V. -// -// The contents of the D and G (G1) functions (GGX) are taken from -// E. Heitz, "Understanding the Masking-Shadowing Function in Microfacet-Based BRDFs", J. Comp. Graph. Tech. 3 (2) (2014). -// Eqns 71-72 and 85-86 (see also Eqns 43 and 80). - -#if !defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) - -float G_GGX_2cos(float cos_theta_m, float alpha) { - // Schlick's approximation - // C. Schlick, "An Inexpensive BRDF Model for Physically-based Rendering", Computer Graphics Forum. 13 (3): 233 (1994) - // Eq. (19), although see Heitz (2014) the about the problems with his derivation. - // It nevertheless approximates GGX well with k = alpha/2. - float k = 0.5 * alpha; - return 0.5 / (cos_theta_m * (1.0 - k) + k); - - // float cos2 = cos_theta_m * cos_theta_m; - // float sin2 = (1.0 - cos2); - // return 1.0 / (cos_theta_m + sqrt(cos2 + alpha * alpha * sin2)); -} - -float D_GGX(float cos_theta_m, float alpha) { - float alpha2 = alpha * alpha; - float d = 1.0 + (alpha2 - 1.0) * cos_theta_m * cos_theta_m; - return alpha2 / (M_PI * d * d); -} - -float G_GGX_anisotropic_2cos(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { - float cos2 = cos_theta_m * cos_theta_m; - float sin2 = (1.0 - cos2); - float s_x = alpha_x * cos_phi; - float s_y = alpha_y * sin_phi; - return 1.0 / max(cos_theta_m + sqrt(cos2 + (s_x * s_x + s_y * s_y) * sin2), 0.001); -} - -float D_GGX_anisotropic(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { - float cos2 = cos_theta_m * cos_theta_m; - float sin2 = (1.0 - cos2); - float r_x = cos_phi / alpha_x; - float r_y = sin_phi / alpha_y; - float d = cos2 + sin2 * (r_x * r_x + r_y * r_y); - return 1.0 / max(M_PI * alpha_x * alpha_y * d * d, 0.001); -} - -float SchlickFresnel(float u) { - float m = 1.0 - u; - float m2 = m * m; - return m2 * m2 * m; // pow(m,5) -} - -float GTR1(float NdotH, float a) { - if (a >= 1.0) - return 1.0 / M_PI; - float a2 = a * a; - float t = 1.0 + (a2 - 1.0) * NdotH * NdotH; - return (a2 - 1.0) / (M_PI * log(a2) * t); -} - -vec3 F0(float metallic, float specular, vec3 albedo) { - float dielectric = 0.16 * specular * specular; - // use albedo * metallic as colored specular reflectance at 0 angle for metallic materials; - // see https://google.github.io/filament/Filament.md.html - return mix(vec3(dielectric), albedo, vec3(metallic)); -} - -void light_compute(vec3 N, vec3 L, vec3 V, float A, vec3 light_color, float attenuation, vec3 shadow_attenuation, vec3 diffuse_color, float roughness, float metallic, float specular, float specular_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - vec3 backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - vec4 transmittance_color, - float transmittance_depth, - float transmittance_curve, - float transmittance_boost, - float transmittance_z, -#endif -#ifdef LIGHT_RIM_USED - float rim, float rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - float clearcoat, float clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - vec3 B, vec3 T, float anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - inout float alpha, -#endif - inout vec3 diffuse_light, inout vec3 specular_light) { - -#if defined(USE_LIGHT_SHADER_CODE) - // light is written by the light shader - - vec3 normal = N; - vec3 albedo = diffuse_color; - vec3 light = L; - vec3 view = V; - - /* clang-format off */ - -LIGHT_SHADER_CODE - - /* clang-format on */ - -#else - float NdotL = min(A + dot(N, L), 1.0); - float cNdotL = max(NdotL, 0.0); // clamped NdotL - float NdotV = dot(N, V); - float cNdotV = max(NdotV, 0.0); - -#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) - vec3 H = normalize(V + L); -#endif - -#if defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) - float cNdotH = clamp(A + dot(N, H), 0.0, 1.0); -#endif - -#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) - float cLdotH = clamp(A + dot(L, H), 0.0, 1.0); -#endif - - if (metallic < 1.0) { -#if defined(DIFFUSE_OREN_NAYAR) - vec3 diffuse_brdf_NL; -#else - float diffuse_brdf_NL; // BRDF times N.L for calculating diffuse radiance -#endif - -#if defined(DIFFUSE_LAMBERT_WRAP) - // energy conserving lambert wrap shader - diffuse_brdf_NL = max(0.0, (NdotL + roughness) / ((1.0 + roughness) * (1.0 + roughness))); - -#elif defined(DIFFUSE_OREN_NAYAR) - - { - // see http://mimosa-pudica.net/improved-oren-nayar.html - float LdotV = dot(L, V); - - float s = LdotV - NdotL * NdotV; - float t = mix(1.0, max(NdotL, NdotV), step(0.0, s)); - - float sigma2 = roughness * roughness; // TODO: this needs checking - vec3 A = 1.0 + sigma2 * (-0.5 / (sigma2 + 0.33) + 0.17 * diffuse_color / (sigma2 + 0.13)); - float B = 0.45 * sigma2 / (sigma2 + 0.09); - - diffuse_brdf_NL = cNdotL * (A + vec3(B) * s / t) * (1.0 / M_PI); - } - -#elif defined(DIFFUSE_TOON) - - diffuse_brdf_NL = smoothstep(-roughness, max(roughness, 0.01), NdotL); - -#elif defined(DIFFUSE_BURLEY) - - { - float FD90_minus_1 = 2.0 * cLdotH * cLdotH * roughness - 0.5; - float FdV = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotV); - float FdL = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotL); - diffuse_brdf_NL = (1.0 / M_PI) * FdV * FdL * cNdotL; - /* - float energyBias = mix(roughness, 0.0, 0.5); - float energyFactor = mix(roughness, 1.0, 1.0 / 1.51); - float fd90 = energyBias + 2.0 * VoH * VoH * roughness; - float f0 = 1.0; - float lightScatter = f0 + (fd90 - f0) * pow(1.0 - cNdotL, 5.0); - float viewScatter = f0 + (fd90 - f0) * pow(1.0 - cNdotV, 5.0); - - diffuse_brdf_NL = lightScatter * viewScatter * energyFactor; - */ - } -#else - // lambert - diffuse_brdf_NL = cNdotL * (1.0 / M_PI); -#endif - - diffuse_light += light_color * diffuse_color * shadow_attenuation * diffuse_brdf_NL * attenuation; - -#if defined(LIGHT_BACKLIGHT_USED) - diffuse_light += light_color * diffuse_color * (vec3(1.0 / M_PI) - diffuse_brdf_NL) * backlight * attenuation; -#endif - -#if defined(LIGHT_RIM_USED) - float rim_light = pow(max(0.0, 1.0 - cNdotV), max(0.0, (1.0 - roughness) * 16.0)); - diffuse_light += rim_light * rim * mix(vec3(1.0), diffuse_color, rim_tint) * light_color; -#endif - -#ifdef LIGHT_TRANSMITTANCE_USED - -#ifdef SSS_MODE_SKIN - - { - float scale = 8.25 / transmittance_depth; - float d = scale * abs(transmittance_z); - float dd = -d * d; - vec3 profile = vec3(0.233, 0.455, 0.649) * exp(dd / 0.0064) + - vec3(0.1, 0.336, 0.344) * exp(dd / 0.0484) + - vec3(0.118, 0.198, 0.0) * exp(dd / 0.187) + - vec3(0.113, 0.007, 0.007) * exp(dd / 0.567) + - vec3(0.358, 0.004, 0.0) * exp(dd / 1.99) + - vec3(0.078, 0.0, 0.0) * exp(dd / 7.41); - - diffuse_light += profile * transmittance_color.a * diffuse_color * light_color * clamp(transmittance_boost - NdotL, 0.0, 1.0) * (1.0 / M_PI) * attenuation; - } -#else - - if (transmittance_depth > 0.0) { - float fade = clamp(abs(transmittance_z / transmittance_depth), 0.0, 1.0); - - fade = pow(max(0.0, 1.0 - fade), transmittance_curve); - fade *= clamp(transmittance_boost - NdotL, 0.0, 1.0); - - diffuse_light += diffuse_color * transmittance_color.rgb * light_color * (1.0 / M_PI) * transmittance_color.a * fade * attenuation; - } - -#endif //SSS_MODE_SKIN - -#endif //LIGHT_TRANSMITTANCE_USED - } - - if (roughness > 0.0) { // FIXME: roughness == 0 should not disable specular light entirely - - // D - -#if defined(SPECULAR_BLINN) - - //normalized blinn - float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; - float blinn = pow(cNdotH, shininess) * cNdotL; - blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); - float intensity = blinn; - - specular_light += light_color * shadow_attenuation * intensity * specular_blob_intensity * attenuation; - -#elif defined(SPECULAR_PHONG) - - vec3 R = normalize(-reflect(L, N)); - float cRdotV = clamp(A + dot(R, V), 0.0, 1.0); - float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; - float phong = pow(cRdotV, shininess); - phong *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); - float intensity = (phong) / max(4.0 * cNdotV * cNdotL, 0.75); - - specular_light += light_color * shadow_attenuation * intensity * specular_blob_intensity * attenuation; - -#elif defined(SPECULAR_TOON) - - vec3 R = normalize(-reflect(L, N)); - float RdotV = dot(R, V); - float mid = 1.0 - roughness; - mid *= mid; - float intensity = smoothstep(mid - roughness * 0.5, mid + roughness * 0.5, RdotV) * mid; - diffuse_light += light_color * shadow_attenuation * intensity * specular_blob_intensity * attenuation; // write to diffuse_light, as in toon shading you generally want no reflection - -#elif defined(SPECULAR_DISABLED) - // none.. - -#elif defined(SPECULAR_SCHLICK_GGX) - // shlick+ggx as default - -#if defined(LIGHT_ANISOTROPY_USED) - - float alpha_ggx = roughness * roughness; - float aspect = sqrt(1.0 - anisotropy * 0.9); - float ax = alpha_ggx / aspect; - float ay = alpha_ggx * aspect; - float XdotH = dot(T, H); - float YdotH = dot(B, H); - float D = D_GGX_anisotropic(cNdotH, ax, ay, XdotH, YdotH); - float G = G_GGX_anisotropic_2cos(cNdotL, ax, ay, XdotH, YdotH) * G_GGX_anisotropic_2cos(cNdotV, ax, ay, XdotH, YdotH); - -#else - float alpha_ggx = roughness * roughness; - float D = D_GGX(cNdotH, alpha_ggx); - float G = G_GGX_2cos(cNdotL, alpha_ggx) * G_GGX_2cos(cNdotV, alpha_ggx); -#endif - // F - vec3 f0 = F0(metallic, specular, diffuse_color); - float cLdotH5 = SchlickFresnel(cLdotH); - vec3 F = mix(vec3(cLdotH5), vec3(1.0), f0); - - vec3 specular_brdf_NL = cNdotL * D * F * G; - - specular_light += specular_brdf_NL * light_color * shadow_attenuation * specular_blob_intensity * attenuation; -#endif - -#if defined(LIGHT_CLEARCOAT_USED) - -#if !defined(SPECULAR_SCHLICK_GGX) - float cLdotH5 = SchlickFresnel(cLdotH); -#endif - float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_gloss)); - float Fr = mix(.04, 1.0, cLdotH5); - float Gr = G_GGX_2cos(cNdotL, .25) * G_GGX_2cos(cNdotV, .25); - - float clearcoat_specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; - - specular_light += clearcoat_specular_brdf_NL * light_color * shadow_attenuation * specular_blob_intensity * attenuation; -#endif - } - -#ifdef USE_SHADOW_TO_OPACITY - alpha = min(alpha, clamp(1.0 - length(shadow_attenuation * attenuation), 0.0, 1.0)); -#endif - -#endif //defined(USE_LIGHT_SHADER_CODE) -} - -#ifndef USE_NO_SHADOWS - -// Produces cheap white noise, optimized for window-space -// Comes from: https://www.shadertoy.com/view/4djSRW -// Copyright: Dave Hoskins, MIT License -float quick_hash(vec2 pos) { - vec3 p3 = fract(vec3(pos.xyx) * .1031); - p3 += dot(p3, p3.yzx + 33.33); - return fract((p3.x + p3.y) * p3.z); -} - -float sample_directional_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, vec4 coord) { - vec2 pos = coord.xy; - float depth = coord.z; - - //if only one sample is taken, take it from the center - if (scene_data.directional_soft_shadow_samples == 1) { - return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0)); - } - - mat2 disk_rotation; - { - float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; - float sr = sin(r); - float cr = cos(r); - disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); - } - - float avg = 0.0; - - for (uint i = 0; i < scene_data.directional_soft_shadow_samples; i++) { - avg += textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos + shadow_pixel_size * (disk_rotation * scene_data.directional_soft_shadow_kernel[i].xy), depth, 1.0)); - } - - return avg * (1.0 / float(scene_data.directional_soft_shadow_samples)); -} - -float sample_pcf_shadow(texture2D shadow, vec2 shadow_pixel_size, vec4 coord) { - vec2 pos = coord.xy; - float depth = coord.z; - - //if only one sample is taken, take it from the center - if (scene_data.soft_shadow_samples == 1) { - return textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos, depth, 1.0)); - } - - mat2 disk_rotation; - { - float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; - float sr = sin(r); - float cr = cos(r); - disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); - } - - float avg = 0.0; - - for (uint i = 0; i < scene_data.soft_shadow_samples; i++) { - avg += textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(pos + shadow_pixel_size * (disk_rotation * scene_data.soft_shadow_kernel[i].xy), depth, 1.0)); - } - - return avg * (1.0 / float(scene_data.soft_shadow_samples)); -} - -float sample_directional_soft_shadow(texture2D shadow, vec3 pssm_coord, vec2 tex_scale) { - //find blocker - float blocker_count = 0.0; - float blocker_average = 0.0; - - mat2 disk_rotation; - { - float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; - float sr = sin(r); - float cr = cos(r); - disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); - } - - for (uint i = 0; i < scene_data.directional_penumbra_shadow_samples; i++) { - vec2 suv = pssm_coord.xy + (disk_rotation * scene_data.directional_penumbra_shadow_kernel[i].xy) * tex_scale; - float d = textureLod(sampler2D(shadow, material_samplers[SAMPLER_LINEAR_CLAMP]), suv, 0.0).r; - if (d < pssm_coord.z) { - blocker_average += d; - blocker_count += 1.0; - } - } - - if (blocker_count > 0.0) { - //blockers found, do soft shadow - blocker_average /= blocker_count; - float penumbra = (pssm_coord.z - blocker_average) / blocker_average; - tex_scale *= penumbra; - - float s = 0.0; - for (uint i = 0; i < scene_data.directional_penumbra_shadow_samples; i++) { - vec2 suv = pssm_coord.xy + (disk_rotation * scene_data.directional_penumbra_shadow_kernel[i].xy) * tex_scale; - s += textureProj(sampler2DShadow(shadow, shadow_sampler), vec4(suv, pssm_coord.z, 1.0)); - } - - return s / float(scene_data.directional_penumbra_shadow_samples); - - } else { - //no blockers found, so no shadow - return 1.0; - } -} - -#endif //USE_NO_SHADOWS - -void light_process_omni(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 vertex_ddx, vec3 vertex_ddy, vec3 albedo, float roughness, float metallic, float specular, float p_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - vec3 backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - vec4 transmittance_color, - float transmittance_depth, - float transmittance_curve, - float transmittance_boost, -#endif -#ifdef LIGHT_RIM_USED - float rim, float rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - float clearcoat, float clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - vec3 binormal, vec3 tangent, float anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - inout float alpha, -#endif - inout vec3 diffuse_light, inout vec3 specular_light) { - vec3 light_rel_vec = lights.data[idx].position - vertex; - float light_length = length(light_rel_vec); - float normalized_distance = light_length * lights.data[idx].inv_radius; - vec2 attenuation_energy = unpackHalf2x16(lights.data[idx].attenuation_energy); - float omni_attenuation = pow(max(1.0 - normalized_distance, 0.0), attenuation_energy.x); - float light_attenuation = omni_attenuation; - vec3 shadow_attenuation = vec3(1.0); - vec4 color_specular = unpackUnorm4x8(lights.data[idx].color_specular); - color_specular.rgb *= attenuation_energy.y; - float size_A = 0.0; - - if (lights.data[idx].size > 0.0) { - float t = lights.data[idx].size / max(0.001, light_length); - size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); - } - -#ifdef LIGHT_TRANSMITTANCE_USED - float transmittance_z = transmittance_depth; //no transmittance by default -#endif - -#ifndef USE_NO_SHADOWS - vec4 shadow_color_enabled = unpackUnorm4x8(lights.data[idx].shadow_color_enabled); - if (shadow_color_enabled.w > 0.5) { - // there is a shadowmap - - vec4 v = vec4(vertex, 1.0); - - vec4 splane = (lights.data[idx].shadow_matrix * v); - float shadow_len = length(splane.xyz); //need to remember shadow len from here - - { - vec3 nofs = normal_interp * lights.data[idx].shadow_normal_bias / lights.data[idx].inv_radius; - nofs *= (1.0 - max(0.0, dot(normalize(light_rel_vec), normalize(normal_interp)))); - v.xyz += nofs; - splane = (lights.data[idx].shadow_matrix * v); - } - - float shadow; - - if (lights.data[idx].soft_shadow_size > 0.0) { - //soft shadow - - //find blocker - - float blocker_count = 0.0; - float blocker_average = 0.0; - - mat2 disk_rotation; - { - float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; - float sr = sin(r); - float cr = cos(r); - disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); - } - - vec3 normal = normalize(splane.xyz); - vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0); - vec3 tangent = normalize(cross(v0, normal)); - vec3 bitangent = normalize(cross(tangent, normal)); - float z_norm = shadow_len * lights.data[idx].inv_radius; - - tangent *= lights.data[idx].soft_shadow_size * lights.data[idx].soft_shadow_scale; - bitangent *= lights.data[idx].soft_shadow_size * lights.data[idx].soft_shadow_scale; - - for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { - vec2 disk = disk_rotation * scene_data.penumbra_shadow_kernel[i].xy; - - vec3 pos = splane.xyz + tangent * disk.x + bitangent * disk.y; - - pos = normalize(pos); - vec4 uv_rect = lights.data[idx].atlas_rect; - - if (pos.z >= 0.0) { - pos.z += 1.0; - uv_rect.y += uv_rect.w; - } else { - pos.z = 1.0 - pos.z; - } - - pos.xy /= pos.z; - - pos.xy = pos.xy * 0.5 + 0.5; - pos.xy = uv_rect.xy + pos.xy * uv_rect.zw; - - float d = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), pos.xy, 0.0).r; - if (d < z_norm) { - blocker_average += d; - blocker_count += 1.0; - } - } - - if (blocker_count > 0.0) { - //blockers found, do soft shadow - blocker_average /= blocker_count; - float penumbra = (z_norm - blocker_average) / blocker_average; - tangent *= penumbra; - bitangent *= penumbra; - - z_norm -= lights.data[idx].inv_radius * lights.data[idx].shadow_bias; - - shadow = 0.0; - for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { - vec2 disk = disk_rotation * scene_data.penumbra_shadow_kernel[i].xy; - vec3 pos = splane.xyz + tangent * disk.x + bitangent * disk.y; - - pos = normalize(pos); - vec4 uv_rect = lights.data[idx].atlas_rect; - - if (pos.z >= 0.0) { - pos.z += 1.0; - uv_rect.y += uv_rect.w; - } else { - pos.z = 1.0 - pos.z; - } - - pos.xy /= pos.z; - - pos.xy = pos.xy * 0.5 + 0.5; - pos.xy = uv_rect.xy + pos.xy * uv_rect.zw; - shadow += textureProj(sampler2DShadow(shadow_atlas, shadow_sampler), vec4(pos.xy, z_norm, 1.0)); - } - - shadow /= float(scene_data.penumbra_shadow_samples); - - } else { - //no blockers found, so no shadow - shadow = 1.0; - } - } else { - splane.xyz = normalize(splane.xyz); - vec4 clamp_rect = lights.data[idx].atlas_rect; - - if (splane.z >= 0.0) { - splane.z += 1.0; - - clamp_rect.y += clamp_rect.w; - - } else { - splane.z = 1.0 - splane.z; - } - - splane.xy /= splane.z; - - splane.xy = splane.xy * 0.5 + 0.5; - splane.z = (shadow_len - lights.data[idx].shadow_bias) * lights.data[idx].inv_radius; - splane.xy = clamp_rect.xy + splane.xy * clamp_rect.zw; - splane.w = 1.0; //needed? i think it should be 1 already - shadow = sample_pcf_shadow(shadow_atlas, lights.data[idx].soft_shadow_scale * scene_data.shadow_atlas_pixel_size, splane); - } - -#ifdef LIGHT_TRANSMITTANCE_USED - { - vec4 clamp_rect = lights.data[idx].atlas_rect; - - //redo shadowmapping, but shrink the model a bit to avoid arctifacts - splane = (lights.data[idx].shadow_matrix * vec4(vertex - normalize(normal_interp) * lights.data[idx].transmittance_bias, 1.0)); - - shadow_len = length(splane.xyz); - splane = normalize(splane.xyz); - - if (splane.z >= 0.0) { - splane.z += 1.0; - - } else { - splane.z = 1.0 - splane.z; - } - - splane.xy /= splane.z; - splane.xy = splane.xy * 0.5 + 0.5; - splane.z = shadow_len * lights.data[idx].inv_radius; - splane.xy = clamp_rect.xy + splane.xy * clamp_rect.zw; - splane.w = 1.0; //needed? i think it should be 1 already - - float shadow_z = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), splane.xy, 0.0).r; - transmittance_z = (splane.z - shadow_z) / lights.data[idx].inv_radius; - } -#endif - - vec3 no_shadow = vec3(1.0); - - if (lights.data[idx].projector_rect != vec4(0.0)) { - vec3 local_v = (lights.data[idx].shadow_matrix * vec4(vertex, 1.0)).xyz; - local_v = normalize(local_v); - - vec4 atlas_rect = lights.data[idx].projector_rect; - - if (local_v.z >= 0.0) { - local_v.z += 1.0; - atlas_rect.y += atlas_rect.w; - - } else { - local_v.z = 1.0 - local_v.z; - } - - local_v.xy /= local_v.z; - local_v.xy = local_v.xy * 0.5 + 0.5; - vec2 proj_uv = local_v.xy * atlas_rect.zw; - - vec2 proj_uv_ddx; - vec2 proj_uv_ddy; - { - vec3 local_v_ddx = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddx, 1.0)).xyz; - local_v_ddx = normalize(local_v_ddx); - - if (local_v_ddx.z >= 0.0) { - local_v_ddx.z += 1.0; - } else { - local_v_ddx.z = 1.0 - local_v_ddx.z; - } - - local_v_ddx.xy /= local_v_ddx.z; - local_v_ddx.xy = local_v_ddx.xy * 0.5 + 0.5; - - proj_uv_ddx = local_v_ddx.xy * atlas_rect.zw - proj_uv; - - vec3 local_v_ddy = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddy, 1.0)).xyz; - local_v_ddy = normalize(local_v_ddy); - - if (local_v_ddy.z >= 0.0) { - local_v_ddy.z += 1.0; - } else { - local_v_ddy.z = 1.0 - local_v_ddy.z; - } - - local_v_ddy.xy /= local_v_ddy.z; - local_v_ddy.xy = local_v_ddy.xy * 0.5 + 0.5; - - proj_uv_ddy = local_v_ddy.xy * atlas_rect.zw - proj_uv; - } - - vec4 proj = textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), proj_uv + atlas_rect.xy, proj_uv_ddx, proj_uv_ddy); - no_shadow = mix(no_shadow, proj.rgb, proj.a); - } - - shadow_attenuation = mix(shadow_color_enabled.rgb, no_shadow, shadow); - } -#endif //USE_NO_SHADOWS - - light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color_specular.rgb, light_attenuation, shadow_attenuation, albedo, roughness, metallic, specular, color_specular.a * p_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - transmittance_color, - transmittance_depth, - transmittance_curve, - transmittance_boost, - transmittance_z, -#endif -#ifdef LIGHT_RIM_USED - rim * omni_attenuation, rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - clearcoat, clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - binormal, tangent, anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - alpha, -#endif - diffuse_light, - specular_light); -} - -void light_process_spot(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 vertex_ddx, vec3 vertex_ddy, vec3 albedo, float roughness, float metallic, float specular, float p_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - vec3 backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - vec4 transmittance_color, - float transmittance_depth, - float transmittance_curve, - float transmittance_boost, -#endif -#ifdef LIGHT_RIM_USED - float rim, float rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - float clearcoat, float clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - vec3 binormal, vec3 tangent, float anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - inout float alpha, -#endif - inout vec3 diffuse_light, - inout vec3 specular_light) { - vec3 light_rel_vec = lights.data[idx].position - vertex; - float light_length = length(light_rel_vec); - float normalized_distance = light_length * lights.data[idx].inv_radius; - vec2 attenuation_energy = unpackHalf2x16(lights.data[idx].attenuation_energy); - float spot_attenuation = pow(max(1.0 - normalized_distance, 0.001), attenuation_energy.x); - vec3 spot_dir = lights.data[idx].direction; - vec2 spot_att_angle = unpackHalf2x16(lights.data[idx].cone_attenuation_angle); - float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_att_angle.y); - float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_att_angle.y)); - spot_attenuation *= 1.0 - pow(spot_rim, spot_att_angle.x); - float light_attenuation = spot_attenuation; - vec3 shadow_attenuation = vec3(1.0); - vec4 color_specular = unpackUnorm4x8(lights.data[idx].color_specular); - color_specular.rgb *= attenuation_energy.y; - - float size_A = 0.0; - - if (lights.data[idx].size > 0.0) { - float t = lights.data[idx].size / max(0.001, light_length); - size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); - } -/* - if (lights.data[idx].atlas_rect!=vec4(0.0)) { - //use projector texture - } - */ -#ifdef LIGHT_TRANSMITTANCE_USED - float transmittance_z = transmittance_depth; -#endif - -#ifndef USE_NO_SHADOWS - vec4 shadow_color_enabled = unpackUnorm4x8(lights.data[idx].shadow_color_enabled); - if (shadow_color_enabled.w > 0.5) { - //there is a shadowmap - vec4 v = vec4(vertex, 1.0); - - v.xyz -= spot_dir * lights.data[idx].shadow_bias; - - float z_norm = dot(spot_dir, -light_rel_vec) * lights.data[idx].inv_radius; - - float depth_bias_scale = 1.0 / (max(0.0001, z_norm)); //the closer to the light origin, the more you have to offset to reach 1px in the map - vec3 normal_bias = normalize(normal_interp) * (1.0 - max(0.0, dot(spot_dir, -normalize(normal_interp)))) * lights.data[idx].shadow_normal_bias * depth_bias_scale; - normal_bias -= spot_dir * dot(spot_dir, normal_bias); //only XY, no Z - v.xyz += normal_bias; - - //adjust with bias - z_norm = dot(spot_dir, v.xyz - lights.data[idx].position) * lights.data[idx].inv_radius; - - float shadow; - - vec4 splane = (lights.data[idx].shadow_matrix * v); - splane /= splane.w; - - if (lights.data[idx].soft_shadow_size > 0.0) { - //soft shadow - - //find blocker - - vec2 shadow_uv = splane.xy * lights.data[idx].atlas_rect.zw + lights.data[idx].atlas_rect.xy; - - float blocker_count = 0.0; - float blocker_average = 0.0; - - mat2 disk_rotation; - { - float r = quick_hash(gl_FragCoord.xy) * 2.0 * M_PI; - float sr = sin(r); - float cr = cos(r); - disk_rotation = mat2(vec2(cr, -sr), vec2(sr, cr)); - } - - float uv_size = lights.data[idx].soft_shadow_size * z_norm * lights.data[idx].soft_shadow_scale; - vec2 clamp_max = lights.data[idx].atlas_rect.xy + lights.data[idx].atlas_rect.zw; - for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { - vec2 suv = shadow_uv + (disk_rotation * scene_data.penumbra_shadow_kernel[i].xy) * uv_size; - suv = clamp(suv, lights.data[idx].atlas_rect.xy, clamp_max); - float d = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), suv, 0.0).r; - if (d < z_norm) { - blocker_average += d; - blocker_count += 1.0; - } - } - - if (blocker_count > 0.0) { - //blockers found, do soft shadow - blocker_average /= blocker_count; - float penumbra = (z_norm - blocker_average) / blocker_average; - uv_size *= penumbra; - - shadow = 0.0; - for (uint i = 0; i < scene_data.penumbra_shadow_samples; i++) { - vec2 suv = shadow_uv + (disk_rotation * scene_data.penumbra_shadow_kernel[i].xy) * uv_size; - suv = clamp(suv, lights.data[idx].atlas_rect.xy, clamp_max); - shadow += textureProj(sampler2DShadow(shadow_atlas, shadow_sampler), vec4(suv, z_norm, 1.0)); - } - - shadow /= float(scene_data.penumbra_shadow_samples); - - } else { - //no blockers found, so no shadow - shadow = 1.0; - } - - } else { - //hard shadow - vec4 shadow_uv = vec4(splane.xy * lights.data[idx].atlas_rect.zw + lights.data[idx].atlas_rect.xy, z_norm, 1.0); - - shadow = sample_pcf_shadow(shadow_atlas, lights.data[idx].soft_shadow_scale * scene_data.shadow_atlas_pixel_size, shadow_uv); - } - - vec3 no_shadow = vec3(1.0); - - if (lights.data[idx].projector_rect != vec4(0.0)) { - splane = (lights.data[idx].shadow_matrix * vec4(vertex, 1.0)); - splane /= splane.w; - - vec2 proj_uv = splane.xy * lights.data[idx].projector_rect.zw; - - //ensure we have proper mipmaps - vec4 splane_ddx = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddx, 1.0)); - splane_ddx /= splane_ddx.w; - vec2 proj_uv_ddx = splane_ddx.xy * lights.data[idx].projector_rect.zw - proj_uv; - - vec4 splane_ddy = (lights.data[idx].shadow_matrix * vec4(vertex + vertex_ddy, 1.0)); - splane_ddy /= splane_ddy.w; - vec2 proj_uv_ddy = splane_ddy.xy * lights.data[idx].projector_rect.zw - proj_uv; - - vec4 proj = textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), proj_uv + lights.data[idx].projector_rect.xy, proj_uv_ddx, proj_uv_ddy); - no_shadow = mix(no_shadow, proj.rgb, proj.a); - } - - shadow_attenuation = mix(shadow_color_enabled.rgb, no_shadow, shadow); - -#ifdef LIGHT_TRANSMITTANCE_USED - { - splane = (lights.data[idx].shadow_matrix * vec4(vertex - normalize(normal_interp) * lights.data[idx].transmittance_bias, 1.0)); - splane /= splane.w; - splane.xy = splane.xy * lights.data[idx].atlas_rect.zw + lights.data[idx].atlas_rect.xy; - - float shadow_z = textureLod(sampler2D(shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), splane.xy, 0.0).r; - //reconstruct depth - shadow_z /= lights.data[idx].inv_radius; - //distance to light plane - float z = dot(spot_dir, -light_rel_vec); - transmittance_z = z - shadow_z; - } -#endif //LIGHT_TRANSMITTANCE_USED - } - -#endif //USE_NO_SHADOWS - - light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color_specular.rgb, light_attenuation, shadow_attenuation, albedo, roughness, metallic, specular, color_specular.a * p_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - transmittance_color, - transmittance_depth, - transmittance_curve, - transmittance_boost, - transmittance_z, -#endif -#ifdef LIGHT_RIM_USED - rim * spot_attenuation, rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - clearcoat, clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - binormal, tangent, anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - alpha, -#endif - diffuse_light, specular_light); -} - -void reflection_process(uint ref_index, vec3 vertex, vec3 normal, float roughness, vec3 ambient_light, vec3 specular_light, inout vec4 ambient_accum, inout vec4 reflection_accum) { - vec3 box_extents = reflections.data[ref_index].box_extents; - vec3 local_pos = (reflections.data[ref_index].local_matrix * vec4(vertex, 1.0)).xyz; - - if (any(greaterThan(abs(local_pos), box_extents))) { //out of the reflection box - return; - } - - vec3 ref_vec = normalize(reflect(vertex, normal)); - - vec3 inner_pos = abs(local_pos / box_extents); - float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); - //make blend more rounded - blend = mix(length(inner_pos), blend, blend); - blend *= blend; - blend = max(0.0, 1.0 - blend); - - if (reflections.data[ref_index].params.x > 0.0) { // compute reflection - - vec3 local_ref_vec = (reflections.data[ref_index].local_matrix * vec4(ref_vec, 0.0)).xyz; - - if (reflections.data[ref_index].params.w > 0.5) { //box project - - vec3 nrdir = normalize(local_ref_vec); - vec3 rbmax = (box_extents - local_pos) / nrdir; - vec3 rbmin = (-box_extents - local_pos) / nrdir; - - vec3 rbminmax = mix(rbmin, rbmax, greaterThan(nrdir, vec3(0.0, 0.0, 0.0))); - - float fa = min(min(rbminmax.x, rbminmax.y), rbminmax.z); - vec3 posonbox = local_pos + nrdir * fa; - local_ref_vec = posonbox - reflections.data[ref_index].box_offset; - } - - vec4 reflection; - - reflection.rgb = textureLod(samplerCubeArray(reflection_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(local_ref_vec, reflections.data[ref_index].index), roughness * MAX_ROUGHNESS_LOD).rgb; - - if (reflections.data[ref_index].params.z < 0.5) { - reflection.rgb = mix(specular_light, reflection.rgb, blend); - } - - reflection.rgb *= reflections.data[ref_index].params.x; - reflection.a = blend; - reflection.rgb *= reflection.a; - - reflection_accum += reflection; - } - - switch (reflections.data[ref_index].ambient_mode) { - case REFLECTION_AMBIENT_DISABLED: { - //do nothing - } break; - case REFLECTION_AMBIENT_ENVIRONMENT: { - //do nothing - vec3 local_amb_vec = (reflections.data[ref_index].local_matrix * vec4(normal, 0.0)).xyz; - - vec4 ambient_out; - - ambient_out.rgb = textureLod(samplerCubeArray(reflection_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(local_amb_vec, reflections.data[ref_index].index), MAX_ROUGHNESS_LOD).rgb; - ambient_out.a = blend; - if (reflections.data[ref_index].params.z < 0.5) { //interior - ambient_out.rgb = mix(ambient_light, ambient_out.rgb, blend); - } - - ambient_out.rgb *= ambient_out.a; - ambient_accum += ambient_out; - } break; - case REFLECTION_AMBIENT_COLOR: { - vec4 ambient_out; - ambient_out.a = blend; - ambient_out.rgb = reflections.data[ref_index].ambient; - if (reflections.data[ref_index].params.z < 0.5) { - ambient_out.rgb = mix(ambient_light, ambient_out.rgb, blend); - } - ambient_out.rgb *= ambient_out.a; - ambient_accum += ambient_out; - } break; - } -} - -#ifdef USE_FORWARD_GI - -//standard voxel cone trace -vec4 voxel_cone_trace(texture3D probe, vec3 cell_size, vec3 pos, vec3 direction, float tan_half_angle, float max_distance, float p_bias) { - float dist = p_bias; - vec4 color = vec4(0.0); - - while (dist < max_distance && color.a < 0.95) { - float diameter = max(1.0, 2.0 * tan_half_angle * dist); - vec3 uvw_pos = (pos + dist * direction) * cell_size; - float half_diameter = diameter * 0.5; - //check if outside, then break - if (any(greaterThan(abs(uvw_pos - 0.5), vec3(0.5f + half_diameter * cell_size)))) { - break; - } - vec4 scolor = textureLod(sampler3D(probe, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uvw_pos, log2(diameter)); - float a = (1.0 - color.a); - color += a * scolor; - dist += half_diameter; - } - - return color; -} - -vec4 voxel_cone_trace_45_degrees(texture3D probe, vec3 cell_size, vec3 pos, vec3 direction, float tan_half_angle, float max_distance, float p_bias) { - float dist = p_bias; - vec4 color = vec4(0.0); - float radius = max(0.5, tan_half_angle * dist); - float lod_level = log2(radius * 2.0); - - while (dist < max_distance && color.a < 0.95) { - vec3 uvw_pos = (pos + dist * direction) * cell_size; - - //check if outside, then break - if (any(greaterThan(abs(uvw_pos - 0.5), vec3(0.5f + radius * cell_size)))) { - break; - } - vec4 scolor = textureLod(sampler3D(probe, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uvw_pos, lod_level); - lod_level += 1.0; - - float a = (1.0 - color.a); - scolor *= a; - color += scolor; - dist += radius; - radius = max(0.5, tan_half_angle * dist); - } - - return color; -} - -void gi_probe_compute(uint index, vec3 position, vec3 normal, vec3 ref_vec, mat3 normal_xform, float roughness, vec3 ambient, vec3 environment, inout vec4 out_spec, inout vec4 out_diff) { - position = (gi_probes.data[index].xform * vec4(position, 1.0)).xyz; - ref_vec = normalize((gi_probes.data[index].xform * vec4(ref_vec, 0.0)).xyz); - normal = normalize((gi_probes.data[index].xform * vec4(normal, 0.0)).xyz); - - position += normal * gi_probes.data[index].normal_bias; - - //this causes corrupted pixels, i have no idea why.. - if (any(bvec2(any(lessThan(position, vec3(0.0))), any(greaterThan(position, gi_probes.data[index].bounds))))) { - return; - } - - vec3 blendv = abs(position / gi_probes.data[index].bounds * 2.0 - 1.0); - float blend = clamp(1.0 - max(blendv.x, max(blendv.y, blendv.z)), 0.0, 1.0); - //float blend=1.0; - - float max_distance = length(gi_probes.data[index].bounds); - vec3 cell_size = 1.0 / gi_probes.data[index].bounds; - - //radiance - -#define MAX_CONE_DIRS 4 - - vec3 cone_dirs[MAX_CONE_DIRS] = vec3[]( - vec3(0.707107, 0.0, 0.707107), - vec3(0.0, 0.707107, 0.707107), - vec3(-0.707107, 0.0, 0.707107), - vec3(0.0, -0.707107, 0.707107)); - - float cone_weights[MAX_CONE_DIRS] = float[](0.25, 0.25, 0.25, 0.25); - float cone_angle_tan = 0.98269; - - vec3 light = vec3(0.0); - - for (int i = 0; i < MAX_CONE_DIRS; i++) { - vec3 dir = normalize((gi_probes.data[index].xform * vec4(normal_xform * cone_dirs[i], 0.0)).xyz); - - vec4 cone_light = voxel_cone_trace_45_degrees(gi_probe_textures[index], cell_size, position, dir, cone_angle_tan, max_distance, gi_probes.data[index].bias); - - if (gi_probes.data[index].blend_ambient) { - cone_light.rgb = mix(ambient, cone_light.rgb, min(1.0, cone_light.a / 0.95)); - } - - light += cone_weights[i] * cone_light.rgb; - } - - light *= gi_probes.data[index].dynamic_range; - out_diff += vec4(light * blend, blend); - - //irradiance - vec4 irr_light = voxel_cone_trace(gi_probe_textures[index], cell_size, position, ref_vec, tan(roughness * 0.5 * M_PI * 0.99), max_distance, gi_probes.data[index].bias); - if (gi_probes.data[index].blend_ambient) { - irr_light.rgb = mix(environment, irr_light.rgb, min(1.0, irr_light.a / 0.95)); - } - irr_light.rgb *= gi_probes.data[index].dynamic_range; - //irr_light=vec3(0.0); - - out_spec += vec4(irr_light.rgb * blend, blend); -} - -#endif //USE_FORWARD_GI - -vec2 octahedron_wrap(vec2 v) { - vec2 signVal; - signVal.x = v.x >= 0.0 ? 1.0 : -1.0; - signVal.y = v.y >= 0.0 ? 1.0 : -1.0; - return (1.0 - abs(v.yx)) * signVal; -} - -vec2 octahedron_encode(vec3 n) { - // https://twitter.com/Stubbesaurus/status/937994790553227264 - n /= (abs(n.x) + abs(n.y) + abs(n.z)); - n.xy = n.z >= 0.0 ? n.xy : octahedron_wrap(n.xy); - n.xy = n.xy * 0.5 + 0.5; - return n.xy; -} - -void sdfgi_process(uint cascade, vec3 cascade_pos, vec3 cam_pos, vec3 cam_normal, vec3 cam_specular_normal, bool use_specular, float roughness, out vec3 diffuse_light, out vec3 specular_light, out float blend) { - cascade_pos += cam_normal * sdfgi.normal_bias; - - vec3 base_pos = floor(cascade_pos); - //cascade_pos += mix(vec3(0.0),vec3(0.01),lessThan(abs(cascade_pos-base_pos),vec3(0.01))) * cam_normal; - ivec3 probe_base_pos = ivec3(base_pos); - - vec4 diffuse_accum = vec4(0.0); - vec3 specular_accum; - - ivec3 tex_pos = ivec3(probe_base_pos.xy, int(cascade)); - tex_pos.x += probe_base_pos.z * sdfgi.probe_axis_size; - tex_pos.xy = tex_pos.xy * (SDFGI_OCT_SIZE + 2) + ivec2(1); - - vec3 diffuse_posf = (vec3(tex_pos) + vec3(octahedron_encode(cam_normal) * float(SDFGI_OCT_SIZE), 0.0)) * sdfgi.lightprobe_tex_pixel_size; - - vec3 specular_posf; - - if (use_specular) { - specular_accum = vec3(0.0); - specular_posf = (vec3(tex_pos) + vec3(octahedron_encode(cam_specular_normal) * float(SDFGI_OCT_SIZE), 0.0)) * sdfgi.lightprobe_tex_pixel_size; - } - - vec4 light_accum = vec4(0.0); - float weight_accum = 0.0; - - for (uint j = 0; j < 8; j++) { - ivec3 offset = (ivec3(j) >> ivec3(0, 1, 2)) & ivec3(1, 1, 1); - ivec3 probe_posi = probe_base_pos; - probe_posi += offset; - - // Compute weight - - vec3 probe_pos = vec3(probe_posi); - vec3 probe_to_pos = cascade_pos - probe_pos; - vec3 probe_dir = normalize(-probe_to_pos); - - vec3 trilinear = vec3(1.0) - abs(probe_to_pos); - float weight = trilinear.x * trilinear.y * trilinear.z * max(0.005, dot(cam_normal, probe_dir)); - - // Compute lightprobe occlusion - - if (sdfgi.use_occlusion) { - ivec3 occ_indexv = abs((sdfgi.cascades[cascade].probe_world_offset + probe_posi) & ivec3(1, 1, 1)) * ivec3(1, 2, 4); - vec4 occ_mask = mix(vec4(0.0), vec4(1.0), equal(ivec4(occ_indexv.x | occ_indexv.y), ivec4(0, 1, 2, 3))); - - vec3 occ_pos = clamp(cascade_pos, probe_pos - sdfgi.occlusion_clamp, probe_pos + sdfgi.occlusion_clamp) * sdfgi.probe_to_uvw; - occ_pos.z += float(cascade); - if (occ_indexv.z != 0) { //z bit is on, means index is >=4, so make it switch to the other half of textures - occ_pos.x += 1.0; - } - - occ_pos *= sdfgi.occlusion_renormalize; - float occlusion = dot(textureLod(sampler3D(sdfgi_occlusion_cascades, material_samplers[SAMPLER_LINEAR_CLAMP]), occ_pos, 0.0), occ_mask); - - weight *= max(occlusion, 0.01); - } - - // Compute lightprobe texture position - - vec3 diffuse; - vec3 pos_uvw = diffuse_posf; - pos_uvw.xy += vec2(offset.xy) * sdfgi.lightprobe_uv_offset.xy; - pos_uvw.x += float(offset.z) * sdfgi.lightprobe_uv_offset.z; - diffuse = textureLod(sampler2DArray(sdfgi_lightprobe_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), pos_uvw, 0.0).rgb; - - diffuse_accum += vec4(diffuse * weight, weight); - - if (use_specular) { - vec3 specular = vec3(0.0); - vec3 pos_uvw = specular_posf; - pos_uvw.xy += vec2(offset.xy) * sdfgi.lightprobe_uv_offset.xy; - pos_uvw.x += float(offset.z) * sdfgi.lightprobe_uv_offset.z; - if (roughness < 0.99) { - specular = textureLod(sampler2DArray(sdfgi_lightprobe_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), pos_uvw + vec3(0, 0, float(sdfgi.max_cascades)), 0.0).rgb; - } - if (roughness > 0.5) { - specular = mix(specular, textureLod(sampler2DArray(sdfgi_lightprobe_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), pos_uvw, 0.0).rgb, (roughness - 0.5) * 2.0); - } - - specular_accum += specular * weight; - } - } - - if (diffuse_accum.a > 0.0) { - diffuse_accum.rgb /= diffuse_accum.a; - } - - diffuse_light = diffuse_accum.rgb; - - if (use_specular) { - if (diffuse_accum.a > 0.0) { - specular_accum /= diffuse_accum.a; - } - - specular_light = specular_accum; - } - - { - //process blend - float blend_from = (float(sdfgi.probe_axis_size - 1) / 2.0) - 2.5; - float blend_to = blend_from + 2.0; - - vec3 inner_pos = cam_pos * sdfgi.cascades[cascade].to_probe; - - float len = length(inner_pos); - - inner_pos = abs(normalize(inner_pos)); - len *= max(inner_pos.x, max(inner_pos.y, inner_pos.z)); - - if (len >= blend_from) { - blend = smoothstep(blend_from, blend_to, len); - } else { - blend = 0.0; - } - } -} - -#endif //!defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) - -#ifndef MODE_RENDER_DEPTH - -vec4 volumetric_fog_process(vec2 screen_uv, float z) { - vec3 fog_pos = vec3(screen_uv, z * scene_data.volumetric_fog_inv_length); - if (fog_pos.z < 0.0) { - return vec4(0.0); - } else if (fog_pos.z < 1.0) { - fog_pos.z = pow(fog_pos.z, scene_data.volumetric_fog_detail_spread); - } - - return texture(sampler3D(volumetric_fog_texture, material_samplers[SAMPLER_LINEAR_CLAMP]), fog_pos); -} - -vec4 fog_process(vec3 vertex) { - vec3 fog_color = scene_data.fog_light_color; - - if (scene_data.fog_aerial_perspective > 0.0) { - vec3 sky_fog_color = vec3(0.0); - vec3 cube_view = scene_data.radiance_inverse_xform * vertex; - // mip_level always reads from the second mipmap and higher so the fog is always slightly blurred - float mip_level = mix(1.0 / MAX_ROUGHNESS_LOD, 1.0, 1.0 - (abs(vertex.z) - scene_data.z_near) / (scene_data.z_far - scene_data.z_near)); -#ifdef USE_RADIANCE_CUBEMAP_ARRAY - float lod, blend; - blend = modf(mip_level * MAX_ROUGHNESS_LOD, lod); - sky_fog_color = texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(cube_view, lod)).rgb; - sky_fog_color = mix(sky_fog_color, texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(cube_view, lod + 1)).rgb, blend); -#else - sky_fog_color = textureLod(samplerCube(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), cube_view, mip_level * MAX_ROUGHNESS_LOD).rgb; -#endif //USE_RADIANCE_CUBEMAP_ARRAY - fog_color = mix(fog_color, sky_fog_color, scene_data.fog_aerial_perspective); - } - - if (scene_data.fog_sun_scatter > 0.001) { - vec4 sun_scatter = vec4(0.0); - float sun_total = 0.0; - vec3 view = normalize(vertex); - - for (uint i = 0; i < scene_data.directional_light_count; i++) { - vec3 light_color = directional_lights.data[i].color * directional_lights.data[i].energy; - float light_amount = pow(max(dot(view, directional_lights.data[i].direction), 0.0), 8.0); - fog_color += light_color * light_amount * scene_data.fog_sun_scatter; - } - } - - float fog_amount = 1.0 - exp(vertex.z * scene_data.fog_density); - - if (abs(scene_data.fog_height_density) > 0.001) { - float y = (scene_data.camera_matrix * vec4(vertex, 1.0)).y; - - float y_dist = scene_data.fog_height - y; - - float vfog_amount = clamp(exp(y_dist * scene_data.fog_height_density), 0.0, 1.0); - - fog_amount = max(vfog_amount, fog_amount); - } - - return vec4(fog_color, fog_amount); -} - -#endif - -void main() { -#ifdef MODE_DUAL_PARABOLOID - - if (dp_clip > 0.0) - discard; -#endif - - //lay out everything, whathever is unused is optimized away anyway - vec3 vertex = vertex_interp; - vec3 view = -normalize(vertex_interp); - vec3 albedo = vec3(1.0); - vec3 backlight = vec3(0.0); - vec4 transmittance_color = vec4(0.0); - float transmittance_depth = 0.0; - float transmittance_curve = 1.0; - float transmittance_boost = 0.0; - float metallic = 0.0; - float specular = 0.5; - vec3 emission = vec3(0.0); - float roughness = 1.0; - float rim = 0.0; - float rim_tint = 0.0; - float clearcoat = 0.0; - float clearcoat_gloss = 0.0; - float anisotropy = 0.0; - vec2 anisotropy_flow = vec2(1.0, 0.0); -#if defined(CUSTOM_FOG_USED) - vec4 custom_fog = vec4(0.0); -#endif -#if defined(CUSTOM_RADIANCE_USED) - vec4 custom_radiance = vec4(0.0); -#endif -#if defined(CUSTOM_IRRADIANCE_USED) - vec4 custom_irradiance = vec4(0.0); -#endif - -#if defined(AO_USED) - float ao = 1.0; - float ao_light_affect = 0.0; -#endif - - float alpha = 1.0; - -#if defined(TANGENT_USED) || defined(NORMALMAP_USED) || defined(LIGHT_ANISOTROPY_USED) - vec3 binormal = normalize(binormal_interp); - vec3 tangent = normalize(tangent_interp); -#else - vec3 binormal = vec3(0.0); - vec3 tangent = vec3(0.0); -#endif - vec3 normal = normalize(normal_interp); - -#if defined(DO_SIDE_CHECK) - if (!gl_FrontFacing) { - normal = -normal; - } -#endif - - vec2 uv = uv_interp; - -#if defined(UV2_USED) || defined(USE_LIGHTMAP) - vec2 uv2 = uv2_interp; -#endif - -#if defined(COLOR_USED) - vec4 color = color_interp; -#endif - -#if defined(NORMALMAP_USED) - - vec3 normalmap = vec3(0.5); -#endif - - float normaldepth = 1.0; - - vec2 screen_uv = gl_FragCoord.xy * scene_data.screen_pixel_size + scene_data.screen_pixel_size * 0.5; //account for center - - float sss_strength = 0.0; - -#ifdef ALPHA_SCISSOR_USED - float alpha_scissor_threshold = 1.0; -#endif // ALPHA_SCISSOR_USED - -#ifdef ALPHA_HASH_USED - float alpha_hash_scale = 1.0; -#endif // ALPHA_HASH_USED - -#ifdef ALPHA_ANTIALIASING_EDGE_USED - float alpha_antialiasing_edge = 0.0; - vec2 alpha_texture_coordinate = vec2(0.0, 0.0); -#endif // ALPHA_ANTIALIASING_EDGE_USED - - { - /* clang-format off */ - -FRAGMENT_SHADER_CODE - - /* clang-format on */ - } - -#ifdef LIGHT_TRANSMITTANCE_USED -#ifdef SSS_MODE_SKIN - transmittance_color.a = sss_strength; -#else - transmittance_color.a *= sss_strength; -#endif -#endif - -#ifndef USE_SHADOW_TO_OPACITY - -#ifdef ALPHA_SCISSOR_USED - if (alpha < alpha_scissor_threshold) { - discard; - } -#endif // ALPHA_SCISSOR_USED - -// alpha hash can be used in unison with alpha antialiasing -#ifdef ALPHA_HASH_USED - if (alpha < compute_alpha_hash_threshold(vertex, alpha_hash_scale)) { - discard; - } -#endif // ALPHA_HASH_USED - -// If we are not edge antialiasing, we need to remove the output alpha channel from scissor and hash -#if (defined(ALPHA_SCISSOR_USED) || defined(ALPHA_HASH_USED)) && !defined(ALPHA_ANTIALIASING_EDGE_USED) - alpha = 1.0; -#endif - -#ifdef ALPHA_ANTIALIASING_EDGE_USED -// If alpha scissor is used, we must further the edge threshold, otherwise we wont get any edge feather -#ifdef ALPHA_SCISSOR_USED - alpha_antialiasing_edge = clamp(alpha_scissor_threshold + alpha_antialiasing_edge, 0.0, 1.0); -#endif - alpha = compute_alpha_antialiasing_edge(alpha, alpha_texture_coordinate, alpha_antialiasing_edge); -#endif // ALPHA_ANTIALIASING_EDGE_USED - -#ifdef USE_OPAQUE_PREPASS - if (alpha < opaque_prepass_threshold) { - discard; - } -#endif // USE_OPAQUE_PREPASS - -#endif // !USE_SHADOW_TO_OPACITY - -#ifdef NORMALMAP_USED - - normalmap.xy = normalmap.xy * 2.0 - 1.0; - normalmap.z = sqrt(max(0.0, 1.0 - dot(normalmap.xy, normalmap.xy))); //always ignore Z, as it can be RG packed, Z may be pos/neg, etc. - - normal = normalize(mix(normal, tangent * normalmap.x + binormal * normalmap.y + normal * normalmap.z, normaldepth)); - -#endif - -#ifdef LIGHT_ANISOTROPY_USED - - if (anisotropy > 0.01) { - //rotation matrix - mat3 rot = mat3(tangent, binormal, normal); - //make local to space - tangent = normalize(rot * vec3(anisotropy_flow.x, anisotropy_flow.y, 0.0)); - binormal = normalize(rot * vec3(-anisotropy_flow.y, anisotropy_flow.x, 0.0)); - } - -#endif - -#ifdef ENABLE_CLIP_ALPHA - if (albedo.a < 0.99) { - //used for doublepass and shadowmapping - discard; - } -#endif - /////////////////////// DECALS //////////////////////////////// - -#ifndef MODE_RENDER_DEPTH - - uvec4 cluster_cell = texture(usampler3D(cluster_texture, material_samplers[SAMPLER_NEAREST_CLAMP]), vec3(screen_uv, (abs(vertex.z) - scene_data.z_near) / (scene_data.z_far - scene_data.z_near))); - //used for interpolating anything cluster related - vec3 vertex_ddx = dFdx(vertex); - vec3 vertex_ddy = dFdy(vertex); - - { // process decals - - uint decal_count = cluster_cell.w >> CLUSTER_COUNTER_SHIFT; - uint decal_pointer = cluster_cell.w & CLUSTER_POINTER_MASK; - - //do outside for performance and avoiding arctifacts - - for (uint i = 0; i < decal_count; i++) { - uint decal_index = cluster_data.indices[decal_pointer + i]; - if (!bool(decals.data[decal_index].mask & instances.data[instance_index].layer_mask)) { - continue; //not masked - } - - vec3 uv_local = (decals.data[decal_index].xform * vec4(vertex, 1.0)).xyz; - if (any(lessThan(uv_local, vec3(0.0, -1.0, 0.0))) || any(greaterThan(uv_local, vec3(1.0)))) { - continue; //out of decal - } - - //we need ddx/ddy for mipmaps, so simulate them - vec2 ddx = (decals.data[decal_index].xform * vec4(vertex_ddx, 0.0)).xz; - vec2 ddy = (decals.data[decal_index].xform * vec4(vertex_ddy, 0.0)).xz; - - float fade = pow(1.0 - (uv_local.y > 0.0 ? uv_local.y : -uv_local.y), uv_local.y > 0.0 ? decals.data[decal_index].upper_fade : decals.data[decal_index].lower_fade); - - if (decals.data[decal_index].normal_fade > 0.0) { - fade *= smoothstep(decals.data[decal_index].normal_fade, 1.0, dot(normal_interp, decals.data[decal_index].normal) * 0.5 + 0.5); - } - - if (decals.data[decal_index].albedo_rect != vec4(0.0)) { - //has albedo - vec4 decal_albedo = textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].albedo_rect.zw + decals.data[decal_index].albedo_rect.xy, ddx * decals.data[decal_index].albedo_rect.zw, ddy * decals.data[decal_index].albedo_rect.zw); - decal_albedo *= decals.data[decal_index].modulate; - decal_albedo.a *= fade; - albedo = mix(albedo, decal_albedo.rgb, decal_albedo.a * decals.data[decal_index].albedo_mix); - - if (decals.data[decal_index].normal_rect != vec4(0.0)) { - vec3 decal_normal = textureGrad(sampler2D(decal_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].normal_rect.zw + decals.data[decal_index].normal_rect.xy, ddx * decals.data[decal_index].normal_rect.zw, ddy * decals.data[decal_index].normal_rect.zw).xyz; - decal_normal.xy = decal_normal.xy * vec2(2.0, -2.0) - vec2(1.0, -1.0); //users prefer flipped y normal maps in most authoring software - decal_normal.z = sqrt(max(0.0, 1.0 - dot(decal_normal.xy, decal_normal.xy))); - //convert to view space, use xzy because y is up - decal_normal = (decals.data[decal_index].normal_xform * decal_normal.xzy).xyz; - - normal = normalize(mix(normal, decal_normal, decal_albedo.a)); - } - - if (decals.data[decal_index].orm_rect != vec4(0.0)) { - vec3 decal_orm = textureGrad(sampler2D(decal_atlas, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].orm_rect.zw + decals.data[decal_index].orm_rect.xy, ddx * decals.data[decal_index].orm_rect.zw, ddy * decals.data[decal_index].orm_rect.zw).xyz; -#if defined(AO_USED) - ao = mix(ao, decal_orm.r, decal_albedo.a); -#endif - roughness = mix(roughness, decal_orm.g, decal_albedo.a); - metallic = mix(metallic, decal_orm.b, decal_albedo.a); - } - } - - if (decals.data[decal_index].emission_rect != vec4(0.0)) { - //emission is additive, so its independent from albedo - emission += textureGrad(sampler2D(decal_atlas_srgb, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), uv_local.xz * decals.data[decal_index].emission_rect.zw + decals.data[decal_index].emission_rect.xy, ddx * decals.data[decal_index].emission_rect.zw, ddy * decals.data[decal_index].emission_rect.zw).xyz * decals.data[decal_index].emission_energy * fade; - } - } - } - -#endif //not render depth - /////////////////////// LIGHTING ////////////////////////////// - - if (scene_data.roughness_limiter_enabled) { - //http://www.jp.square-enix.com/tech/library/pdf/ImprovedGeometricSpecularAA.pdf - float roughness2 = roughness * roughness; - vec3 dndu = dFdx(normal), dndv = dFdx(normal); - float variance = scene_data.roughness_limiter_amount * (dot(dndu, dndu) + dot(dndv, dndv)); - float kernelRoughness2 = min(2.0 * variance, scene_data.roughness_limiter_limit); //limit effect - float filteredRoughness2 = min(1.0, roughness2 + kernelRoughness2); - roughness = sqrt(filteredRoughness2); - } - //apply energy conservation - - vec3 specular_light = vec3(0.0, 0.0, 0.0); - vec3 diffuse_light = vec3(0.0, 0.0, 0.0); - vec3 ambient_light = vec3(0.0, 0.0, 0.0); - -#if !defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) - - if (scene_data.use_reflection_cubemap) { - vec3 ref_vec = reflect(-view, normal); - ref_vec = scene_data.radiance_inverse_xform * ref_vec; -#ifdef USE_RADIANCE_CUBEMAP_ARRAY - - float lod, blend; - blend = modf(roughness * MAX_ROUGHNESS_LOD, lod); - specular_light = texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(ref_vec, lod)).rgb; - specular_light = mix(specular_light, texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(ref_vec, lod + 1)).rgb, blend); - -#else - specular_light = textureLod(samplerCube(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), ref_vec, roughness * MAX_ROUGHNESS_LOD).rgb; - -#endif //USE_RADIANCE_CUBEMAP_ARRAY - specular_light *= scene_data.ambient_light_color_energy.a; - } - -#if defined(CUSTOM_RADIANCE_USED) - specular_light = mix(specular_light, custom_radiance.rgb, custom_radiance.a); -#endif - -#ifndef USE_LIGHTMAP - //lightmap overrides everything - if (scene_data.use_ambient_light) { - ambient_light = scene_data.ambient_light_color_energy.rgb; - - if (scene_data.use_ambient_cubemap) { - vec3 ambient_dir = scene_data.radiance_inverse_xform * normal; -#ifdef USE_RADIANCE_CUBEMAP_ARRAY - vec3 cubemap_ambient = texture(samplerCubeArray(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), vec4(ambient_dir, MAX_ROUGHNESS_LOD)).rgb; -#else - vec3 cubemap_ambient = textureLod(samplerCube(radiance_cubemap, material_samplers[SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP]), ambient_dir, MAX_ROUGHNESS_LOD).rgb; -#endif //USE_RADIANCE_CUBEMAP_ARRAY - - ambient_light = mix(ambient_light, cubemap_ambient * scene_data.ambient_light_color_energy.a, scene_data.ambient_color_sky_mix); - } - } -#endif // USE_LIGHTMAP -#if defined(CUSTOM_IRRADIANCE_USED) - ambient_light = mix(specular_light, custom_irradiance.rgb, custom_irradiance.a); -#endif -#endif //!defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) - - //radiance - - float specular_blob_intensity = 1.0; - -#if defined(SPECULAR_TOON) - specular_blob_intensity *= specular * 2.0; -#endif - -#if !defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) - -#ifdef USE_LIGHTMAP - - //lightmap - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE)) { //has lightmap capture - uint index = instances.data[instance_index].gi_offset; - - vec3 wnormal = mat3(scene_data.camera_matrix) * normal; - const float c1 = 0.429043; - const float c2 = 0.511664; - const float c3 = 0.743125; - const float c4 = 0.886227; - const float c5 = 0.247708; - ambient_light += (c1 * lightmap_captures.data[index].sh[8].rgb * (wnormal.x * wnormal.x - wnormal.y * wnormal.y) + - c3 * lightmap_captures.data[index].sh[6].rgb * wnormal.z * wnormal.z + - c4 * lightmap_captures.data[index].sh[0].rgb - - c5 * lightmap_captures.data[index].sh[6].rgb + - 2.0 * c1 * lightmap_captures.data[index].sh[4].rgb * wnormal.x * wnormal.y + - 2.0 * c1 * lightmap_captures.data[index].sh[7].rgb * wnormal.x * wnormal.z + - 2.0 * c1 * lightmap_captures.data[index].sh[5].rgb * wnormal.y * wnormal.z + - 2.0 * c2 * lightmap_captures.data[index].sh[3].rgb * wnormal.x + - 2.0 * c2 * lightmap_captures.data[index].sh[1].rgb * wnormal.y + - 2.0 * c2 * lightmap_captures.data[index].sh[2].rgb * wnormal.z); - - } else if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_LIGHTMAP)) { // has actual lightmap - bool uses_sh = bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_SH_LIGHTMAP); - uint ofs = instances.data[instance_index].gi_offset & 0xFFF; - vec3 uvw; - uvw.xy = uv2 * instances.data[instance_index].lightmap_uv_scale.zw + instances.data[instance_index].lightmap_uv_scale.xy; - uvw.z = float((instances.data[instance_index].gi_offset >> 12) & 0xFF); - - if (uses_sh) { - uvw.z *= 4.0; //SH textures use 4 times more data - vec3 lm_light_l0 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 0.0), 0.0).rgb; - vec3 lm_light_l1n1 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 1.0), 0.0).rgb; - vec3 lm_light_l1_0 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 2.0), 0.0).rgb; - vec3 lm_light_l1p1 = textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw + vec3(0.0, 0.0, 3.0), 0.0).rgb; - - uint idx = instances.data[instance_index].gi_offset >> 20; - vec3 n = normalize(lightmaps.data[idx].normal_xform * normal); - - ambient_light += lm_light_l0 * 0.282095f; - ambient_light += lm_light_l1n1 * 0.32573 * n.y; - ambient_light += lm_light_l1_0 * 0.32573 * n.z; - ambient_light += lm_light_l1p1 * 0.32573 * n.x; - if (metallic > 0.01) { // since the more direct bounced light is lost, we can kind of fake it with this trick - vec3 r = reflect(normalize(-vertex), normal); - specular_light += lm_light_l1n1 * 0.32573 * r.y; - specular_light += lm_light_l1_0 * 0.32573 * r.z; - specular_light += lm_light_l1p1 * 0.32573 * r.x; - } - - } else { - ambient_light += textureLod(sampler2DArray(lightmap_textures[ofs], material_samplers[SAMPLER_LINEAR_CLAMP]), uvw, 0.0).rgb; - } - } -#elif defined(USE_FORWARD_GI) - - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_SDFGI)) { //has lightmap capture - - //make vertex orientation the world one, but still align to camera - vec3 cam_pos = mat3(scene_data.camera_matrix) * vertex; - vec3 cam_normal = mat3(scene_data.camera_matrix) * normal; - vec3 cam_reflection = mat3(scene_data.camera_matrix) * reflect(-view, normal); - - //apply y-mult - cam_pos.y *= sdfgi.y_mult; - cam_normal.y *= sdfgi.y_mult; - cam_normal = normalize(cam_normal); - cam_reflection.y *= sdfgi.y_mult; - cam_normal = normalize(cam_normal); - cam_reflection = normalize(cam_reflection); - - vec4 light_accum = vec4(0.0); - float weight_accum = 0.0; - - vec4 light_blend_accum = vec4(0.0); - float weight_blend_accum = 0.0; - - float blend = -1.0; - - // helper constants, compute once - - uint cascade = 0xFFFFFFFF; - vec3 cascade_pos; - vec3 cascade_normal; - - for (uint i = 0; i < sdfgi.max_cascades; i++) { - cascade_pos = (cam_pos - sdfgi.cascades[i].position) * sdfgi.cascades[i].to_probe; - - if (any(lessThan(cascade_pos, vec3(0.0))) || any(greaterThanEqual(cascade_pos, sdfgi.cascade_probe_size))) { - continue; //skip cascade - } - - cascade = i; - break; - } - - if (cascade < SDFGI_MAX_CASCADES) { - bool use_specular = true; - float blend; - vec3 diffuse, specular; - sdfgi_process(cascade, cascade_pos, cam_pos, cam_normal, cam_reflection, use_specular, roughness, diffuse, specular, blend); - - if (blend > 0.0) { - //blend - if (cascade == sdfgi.max_cascades - 1) { - diffuse = mix(diffuse, ambient_light, blend); - if (use_specular) { - specular = mix(specular, specular_light, blend); - } - } else { - vec3 diffuse2, specular2; - float blend2; - cascade_pos = (cam_pos - sdfgi.cascades[cascade + 1].position) * sdfgi.cascades[cascade + 1].to_probe; - sdfgi_process(cascade + 1, cascade_pos, cam_pos, cam_normal, cam_reflection, use_specular, roughness, diffuse2, specular2, blend2); - diffuse = mix(diffuse, diffuse2, blend); - if (use_specular) { - specular = mix(specular, specular2, blend); - } - } - } - - ambient_light = diffuse; - if (use_specular) { - specular_light = specular; - } - } - } - - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes - - uint index1 = instances.data[instance_index].gi_offset & 0xFFFF; - vec3 ref_vec = normalize(reflect(normalize(vertex), normal)); - //find arbitrary tangent and bitangent, then build a matrix - vec3 v0 = abs(normal.z) < 0.999 ? vec3(0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0); - vec3 tangent = normalize(cross(v0, normal)); - vec3 bitangent = normalize(cross(tangent, normal)); - mat3 normal_mat = mat3(tangent, bitangent, normal); - - vec4 amb_accum = vec4(0.0); - vec4 spec_accum = vec4(0.0); - gi_probe_compute(index1, vertex, normal, ref_vec, normal_mat, roughness * roughness, ambient_light, specular_light, spec_accum, amb_accum); - - uint index2 = instances.data[instance_index].gi_offset >> 16; - - if (index2 != 0xFFFF) { - gi_probe_compute(index2, vertex, normal, ref_vec, normal_mat, roughness * roughness, ambient_light, specular_light, spec_accum, amb_accum); - } - - if (amb_accum.a > 0.0) { - amb_accum.rgb /= amb_accum.a; - } - - if (spec_accum.a > 0.0) { - spec_accum.rgb /= spec_accum.a; - } - - specular_light = spec_accum.rgb; - ambient_light = amb_accum.rgb; - } -#else - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GI_BUFFERS)) { //use GI buffers - - ivec2 coord; - - if (scene_data.gi_upscale_for_msaa) { - /* - //find the closest depth to upscale from, based on neighbours - ivec2 base_coord = ivec2(gl_FragCoord.xy); - float z_dist = gl_FragCoord.z; - ivec2 closest_coord = base_coord; - float closest_z_dist = abs(texelFetch(sampler2D(depth_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), base_coord,0).r-z_dist); - - for(int i=0;i<4;i++) { - const ivec2 neighbours[4]=ivec2[](ivec2(-1,0),ivec2(1,0),ivec2(0,-1),ivec2(0,1)); - ivec2 neighbour_coord = base_coord + neighbours[i]; - float neighbour_z_dist = abs(texelFetch(sampler2D(depth_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), neighbour_coord,0).r-z_dist); - if (neighbour_z_dist < closest_z_dist) { - closest_z_dist = neighbour_z_dist; - closest_coord = neighbour_coord; - } - } - -*/ - ivec2 base_coord = ivec2(gl_FragCoord.xy); - ivec2 closest_coord = base_coord; - float closest_ang = dot(normal, texelFetch(sampler2D(normal_roughness_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), base_coord, 0).xyz * 2.0 - 1.0); - - for (int i = 0; i < 4; i++) { - const ivec2 neighbours[4] = ivec2[](ivec2(-1, 0), ivec2(1, 0), ivec2(0, -1), ivec2(0, 1)); - ivec2 neighbour_coord = base_coord + neighbours[i]; - float neighbour_ang = dot(normal, texelFetch(sampler2D(normal_roughness_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), neighbour_coord, 0).xyz * 2.0 - 1.0); - if (neighbour_ang > closest_ang) { - closest_ang = neighbour_ang; - closest_coord = neighbour_coord; - } - } - - coord = closest_coord; - - } else { - coord = ivec2(gl_FragCoord.xy); - } - - vec4 buffer_ambient = texelFetch(sampler2D(ambient_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), coord, 0); - vec4 buffer_reflection = texelFetch(sampler2D(reflection_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), coord, 0); - - ambient_light = mix(ambient_light, buffer_ambient.rgb, buffer_ambient.a); - specular_light = mix(specular_light, buffer_reflection.rgb, buffer_reflection.a); - } -#endif - - { // process reflections - - vec4 reflection_accum = vec4(0.0, 0.0, 0.0, 0.0); - vec4 ambient_accum = vec4(0.0, 0.0, 0.0, 0.0); - - uint reflection_probe_count = cluster_cell.z >> CLUSTER_COUNTER_SHIFT; - uint reflection_probe_pointer = cluster_cell.z & CLUSTER_POINTER_MASK; - - for (uint i = 0; i < reflection_probe_count; i++) { - uint ref_index = cluster_data.indices[reflection_probe_pointer + i]; - reflection_process(ref_index, vertex, normal, roughness, ambient_light, specular_light, ambient_accum, reflection_accum); - } - - if (reflection_accum.a > 0.0) { - specular_light = reflection_accum.rgb / reflection_accum.a; - } - -#if !defined(USE_LIGHTMAP) - if (ambient_accum.a > 0.0) { - ambient_light = ambient_accum.rgb / ambient_accum.a; - } -#endif - } - - { -#if defined(DIFFUSE_TOON) - //simplify for toon, as - specular_light *= specular * metallic * albedo * 2.0; -#else - - // scales the specular reflections, needs to be be computed before lighting happens, - // but after environment, GI, and reflection probes are added - // Environment brdf approximation (Lazarov 2013) - // see https://www.unrealengine.com/en-US/blog/physically-based-shading-on-mobile - const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); - const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); - vec4 r = roughness * c0 + c1; - float ndotv = clamp(dot(normal, view), 0.0, 1.0); - float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y; - vec2 env = vec2(-1.04, 1.04) * a004 + r.zw; - - vec3 f0 = F0(metallic, specular, albedo); - specular_light *= env.x * f0 + env.y; -#endif - } - - { //directional light - - for (uint i = 0; i < scene_data.directional_light_count; i++) { - if (!bool(directional_lights.data[i].mask & instances.data[instance_index].layer_mask)) { - continue; //not masked - } - - vec3 shadow_attenuation = vec3(1.0); - -#ifdef LIGHT_TRANSMITTANCE_USED - float transmittance_z = transmittance_depth; -#endif - - if (directional_lights.data[i].shadow_enabled) { - float depth_z = -vertex.z; - - vec4 pssm_coord; - vec3 shadow_color = vec3(0.0); - vec3 light_dir = directional_lights.data[i].direction; - -#define BIAS_FUNC(m_var, m_idx) \ - m_var.xyz += light_dir * directional_lights.data[i].shadow_bias[m_idx]; \ - vec3 normal_bias = normalize(normal_interp) * (1.0 - max(0.0, dot(light_dir, -normalize(normal_interp)))) * directional_lights.data[i].shadow_normal_bias[m_idx]; \ - normal_bias -= light_dir * dot(light_dir, normal_bias); \ - m_var.xyz += normal_bias; - - float shadow = 0.0; - - if (depth_z < directional_lights.data[i].shadow_split_offsets.x) { - vec4 v = vec4(vertex, 1.0); - - BIAS_FUNC(v, 0) - - pssm_coord = (directional_lights.data[i].shadow_matrix1 * v); - pssm_coord /= pssm_coord.w; - - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.x; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale1 * test_radius; - shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - shadow_color = directional_lights.data[i].shadow_color1.rgb; - -#ifdef LIGHT_TRANSMITTANCE_USED - { - vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.x, 1.0); - vec4 trans_coord = directional_lights.data[i].shadow_matrix1 * trans_vertex; - trans_coord /= trans_coord.w; - - float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; - shadow_z *= directional_lights.data[i].shadow_z_range.x; - float z = trans_coord.z * directional_lights.data[i].shadow_z_range.x; - - transmittance_z = z - shadow_z; - } -#endif - } else if (depth_z < directional_lights.data[i].shadow_split_offsets.y) { - vec4 v = vec4(vertex, 1.0); - - BIAS_FUNC(v, 1) - - pssm_coord = (directional_lights.data[i].shadow_matrix2 * v); - pssm_coord /= pssm_coord.w; - - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.y; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale2 * test_radius; - shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - shadow_color = directional_lights.data[i].shadow_color2.rgb; -#ifdef LIGHT_TRANSMITTANCE_USED - { - vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.y, 1.0); - vec4 trans_coord = directional_lights.data[i].shadow_matrix2 * trans_vertex; - trans_coord /= trans_coord.w; - - float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; - shadow_z *= directional_lights.data[i].shadow_z_range.y; - float z = trans_coord.z * directional_lights.data[i].shadow_z_range.y; - - transmittance_z = z - shadow_z; - } -#endif - } else if (depth_z < directional_lights.data[i].shadow_split_offsets.z) { - vec4 v = vec4(vertex, 1.0); - - BIAS_FUNC(v, 2) - - pssm_coord = (directional_lights.data[i].shadow_matrix3 * v); - pssm_coord /= pssm_coord.w; - - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.z; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale3 * test_radius; - shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - shadow_color = directional_lights.data[i].shadow_color3.rgb; -#ifdef LIGHT_TRANSMITTANCE_USED - { - vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.z, 1.0); - vec4 trans_coord = directional_lights.data[i].shadow_matrix3 * trans_vertex; - trans_coord /= trans_coord.w; - - float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; - shadow_z *= directional_lights.data[i].shadow_z_range.z; - float z = trans_coord.z * directional_lights.data[i].shadow_z_range.z; - - transmittance_z = z - shadow_z; - } -#endif - - } else { - vec4 v = vec4(vertex, 1.0); - - BIAS_FUNC(v, 3) - - pssm_coord = (directional_lights.data[i].shadow_matrix4 * v); - pssm_coord /= pssm_coord.w; - - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.w; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale4 * test_radius; - shadow = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - shadow_color = directional_lights.data[i].shadow_color4.rgb; - -#ifdef LIGHT_TRANSMITTANCE_USED - { - vec4 trans_vertex = vec4(vertex - normalize(normal_interp) * directional_lights.data[i].shadow_transmittance_bias.w, 1.0); - vec4 trans_coord = directional_lights.data[i].shadow_matrix4 * trans_vertex; - trans_coord /= trans_coord.w; - - float shadow_z = textureLod(sampler2D(directional_shadow_atlas, material_samplers[SAMPLER_LINEAR_CLAMP]), trans_coord.xy, 0.0).r; - shadow_z *= directional_lights.data[i].shadow_z_range.w; - float z = trans_coord.z * directional_lights.data[i].shadow_z_range.w; - - transmittance_z = z - shadow_z; - } -#endif - } - - if (directional_lights.data[i].blend_splits) { - vec3 shadow_color_blend = vec3(0.0); - float pssm_blend; - float shadow2; - - if (depth_z < directional_lights.data[i].shadow_split_offsets.x) { - vec4 v = vec4(vertex, 1.0); - BIAS_FUNC(v, 1) - pssm_coord = (directional_lights.data[i].shadow_matrix2 * v); - pssm_coord /= pssm_coord.w; - - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.y; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale2 * test_radius; - shadow2 = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow2 = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - pssm_blend = smoothstep(0.0, directional_lights.data[i].shadow_split_offsets.x, depth_z); - shadow_color_blend = directional_lights.data[i].shadow_color2.rgb; - } else if (depth_z < directional_lights.data[i].shadow_split_offsets.y) { - vec4 v = vec4(vertex, 1.0); - BIAS_FUNC(v, 2) - pssm_coord = (directional_lights.data[i].shadow_matrix3 * v); - pssm_coord /= pssm_coord.w; - - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.z; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale3 * test_radius; - shadow2 = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow2 = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - pssm_blend = smoothstep(directional_lights.data[i].shadow_split_offsets.x, directional_lights.data[i].shadow_split_offsets.y, depth_z); - - shadow_color_blend = directional_lights.data[i].shadow_color3.rgb; - } else if (depth_z < directional_lights.data[i].shadow_split_offsets.z) { - vec4 v = vec4(vertex, 1.0); - BIAS_FUNC(v, 3) - pssm_coord = (directional_lights.data[i].shadow_matrix4 * v); - pssm_coord /= pssm_coord.w; - if (directional_lights.data[i].softshadow_angle > 0) { - float range_pos = dot(directional_lights.data[i].direction, v.xyz); - float range_begin = directional_lights.data[i].shadow_range_begin.w; - float test_radius = (range_pos - range_begin) * directional_lights.data[i].softshadow_angle; - vec2 tex_scale = directional_lights.data[i].uv_scale4 * test_radius; - shadow2 = sample_directional_soft_shadow(directional_shadow_atlas, pssm_coord.xyz, tex_scale * directional_lights.data[i].soft_shadow_scale); - } else { - shadow2 = sample_directional_pcf_shadow(directional_shadow_atlas, scene_data.directional_shadow_pixel_size * directional_lights.data[i].soft_shadow_scale, pssm_coord); - } - - pssm_blend = smoothstep(directional_lights.data[i].shadow_split_offsets.y, directional_lights.data[i].shadow_split_offsets.z, depth_z); - shadow_color_blend = directional_lights.data[i].shadow_color4.rgb; - } else { - pssm_blend = 0.0; //if no blend, same coord will be used (divide by z will result in same value, and already cached) - } - - pssm_blend = sqrt(pssm_blend); - - shadow = mix(shadow, shadow2, pssm_blend); - shadow_color = mix(shadow_color, shadow_color_blend, pssm_blend); - } - - shadow = mix(shadow, 1.0, smoothstep(directional_lights.data[i].fade_from, directional_lights.data[i].fade_to, vertex.z)); //done with negative values for performance - - shadow_attenuation = mix(shadow_color, vec3(1.0), shadow); - -#undef BIAS_FUNC - } - - light_compute(normal, directional_lights.data[i].direction, normalize(view), directional_lights.data[i].size, directional_lights.data[i].color * directional_lights.data[i].energy, 1.0, shadow_attenuation, albedo, roughness, metallic, specular, directional_lights.data[i].specular * specular_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - transmittance_color, - transmittance_depth, - transmittance_curve, - transmittance_boost, - transmittance_z, -#endif -#ifdef LIGHT_RIM_USED - rim, rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - clearcoat, clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - binormal, tangent, anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - alpha, -#endif - diffuse_light, - specular_light); - } - } - - { //omni lights - - uint omni_light_count = cluster_cell.x >> CLUSTER_COUNTER_SHIFT; - uint omni_light_pointer = cluster_cell.x & CLUSTER_POINTER_MASK; - - for (uint i = 0; i < omni_light_count; i++) { - uint light_index = cluster_data.indices[omni_light_pointer + i]; - - if (!bool(lights.data[light_index].mask & instances.data[instance_index].layer_mask)) { - continue; //not masked - } - - light_process_omni(light_index, vertex, view, normal, vertex_ddx, vertex_ddy, albedo, roughness, metallic, specular, specular_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - transmittance_color, - transmittance_depth, - transmittance_curve, - transmittance_boost, -#endif -#ifdef LIGHT_RIM_USED - rim, - rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - clearcoat, clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - tangent, binormal, anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - alpha, -#endif - diffuse_light, specular_light); - } - } - - { //spot lights - uint spot_light_count = cluster_cell.y >> CLUSTER_COUNTER_SHIFT; - uint spot_light_pointer = cluster_cell.y & CLUSTER_POINTER_MASK; - - for (uint i = 0; i < spot_light_count; i++) { - uint light_index = cluster_data.indices[spot_light_pointer + i]; - - if (!bool(lights.data[light_index].mask & instances.data[instance_index].layer_mask)) { - continue; //not masked - } - - light_process_spot(light_index, vertex, view, normal, vertex_ddx, vertex_ddy, albedo, roughness, metallic, specular, specular_blob_intensity, -#ifdef LIGHT_BACKLIGHT_USED - backlight, -#endif -#ifdef LIGHT_TRANSMITTANCE_USED - transmittance_color, - transmittance_depth, - transmittance_curve, - transmittance_boost, -#endif -#ifdef LIGHT_RIM_USED - rim, - rim_tint, -#endif -#ifdef LIGHT_CLEARCOAT_USED - clearcoat, clearcoat_gloss, -#endif -#ifdef LIGHT_ANISOTROPY_USED - tangent, binormal, anisotropy, -#endif -#ifdef USE_SHADOW_TO_OPACITY - alpha, -#endif - diffuse_light, specular_light); - } - } - -#ifdef USE_SHADOW_TO_OPACITY - alpha = min(alpha, clamp(length(ambient_light), 0.0, 1.0)); - -#if defined(ALPHA_SCISSOR_USED) - if (alpha < alpha_scissor) { - discard; - } -#endif // ALPHA_SCISSOR_USED - -#ifdef USE_OPAQUE_PREPASS - - if (alpha < opaque_prepass_threshold) { - discard; - } - -#endif // USE_OPAQUE_PREPASS - -#endif // USE_SHADOW_TO_OPACITY - -#endif //!defined(MODE_RENDER_DEPTH) && !defined(MODE_UNSHADED) - -#ifdef MODE_RENDER_DEPTH - -#ifdef MODE_RENDER_SDF - - { - vec3 local_pos = (scene_data.sdf_to_bounds * vec4(vertex, 1.0)).xyz; - ivec3 grid_pos = scene_data.sdf_offset + ivec3(local_pos * vec3(scene_data.sdf_size)); - - uint albedo16 = 0x1; //solid flag - albedo16 |= clamp(uint(albedo.r * 31.0), 0, 31) << 11; - albedo16 |= clamp(uint(albedo.g * 31.0), 0, 31) << 6; - albedo16 |= clamp(uint(albedo.b * 31.0), 0, 31) << 1; - - imageStore(albedo_volume_grid, grid_pos, uvec4(albedo16)); - - uint facing_bits = 0; - const vec3 aniso_dir[6] = vec3[]( - vec3(1, 0, 0), - vec3(0, 1, 0), - vec3(0, 0, 1), - vec3(-1, 0, 0), - vec3(0, -1, 0), - vec3(0, 0, -1)); - - vec3 cam_normal = mat3(scene_data.camera_matrix) * normalize(normal_interp); - - float closest_dist = -1e20; - - for (uint i = 0; i < 6; i++) { - float d = dot(cam_normal, aniso_dir[i]); - if (d > closest_dist) { - closest_dist = d; - facing_bits = (1 << i); - } - } - - imageAtomicOr(geom_facing_grid, grid_pos, facing_bits); //store facing bits - - if (length(emission) > 0.001) { - float lumas[6]; - vec3 light_total = vec3(0); - - for (int i = 0; i < 6; i++) { - float strength = max(0.0, dot(cam_normal, aniso_dir[i])); - vec3 light = emission * strength; - light_total += light; - lumas[i] = max(light.r, max(light.g, light.b)); - } - - float luma_total = max(light_total.r, max(light_total.g, light_total.b)); - - uint light_aniso = 0; - - for (int i = 0; i < 6; i++) { - light_aniso |= min(31, uint((lumas[i] / luma_total) * 31.0)) << (i * 5); - } - - //compress to RGBE9995 to save space - - const float pow2to9 = 512.0f; - const float B = 15.0f; - const float N = 9.0f; - const float LN2 = 0.6931471805599453094172321215; - - float cRed = clamp(light_total.r, 0.0, 65408.0); - float cGreen = clamp(light_total.g, 0.0, 65408.0); - float cBlue = clamp(light_total.b, 0.0, 65408.0); - - float cMax = max(cRed, max(cGreen, cBlue)); - - float expp = max(-B - 1.0f, floor(log(cMax) / LN2)) + 1.0f + B; - - float sMax = floor((cMax / pow(2.0f, expp - B - N)) + 0.5f); - - float exps = expp + 1.0f; - - if (0.0 <= sMax && sMax < pow2to9) { - exps = expp; - } - - float sRed = floor((cRed / pow(2.0f, exps - B - N)) + 0.5f); - float sGreen = floor((cGreen / pow(2.0f, exps - B - N)) + 0.5f); - float sBlue = floor((cBlue / pow(2.0f, exps - B - N)) + 0.5f); - //store as 8985 to have 2 extra neighbour bits - uint light_rgbe = ((uint(sRed) & 0x1FF) >> 1) | ((uint(sGreen) & 0x1FF) << 8) | (((uint(sBlue) & 0x1FF) >> 1) << 17) | ((uint(exps) & 0x1F) << 25); - - imageStore(emission_grid, grid_pos, uvec4(light_rgbe)); - imageStore(emission_aniso_grid, grid_pos, uvec4(light_aniso)); - } - } - -#endif - -#ifdef MODE_RENDER_MATERIAL - - albedo_output_buffer.rgb = albedo; - albedo_output_buffer.a = alpha; - - normal_output_buffer.rgb = normal * 0.5 + 0.5; - normal_output_buffer.a = 0.0; - depth_output_buffer.r = -vertex.z; - -#if defined(AO_USED) - orm_output_buffer.r = ao; -#else - orm_output_buffer.r = 0.0; -#endif - orm_output_buffer.g = roughness; - orm_output_buffer.b = metallic; - orm_output_buffer.a = sss_strength; - - emission_output_buffer.rgb = emission; - emission_output_buffer.a = 0.0; -#endif - -#ifdef MODE_RENDER_NORMAL_ROUGHNESS - normal_roughness_output_buffer = vec4(normal * 0.5 + 0.5, roughness); - -#ifdef MODE_RENDER_GIPROBE - if (bool(instances.data[instance_index].flags & INSTANCE_FLAGS_USE_GIPROBE)) { // process giprobes - uint index1 = instances.data[instance_index].gi_offset & 0xFFFF; - uint index2 = instances.data[instance_index].gi_offset >> 16; - giprobe_buffer.x = index1 & 0xFF; - giprobe_buffer.y = index2 & 0xFF; - } else { - giprobe_buffer.x = 0xFF; - giprobe_buffer.y = 0xFF; - } -#endif - -#endif //MODE_RENDER_NORMAL - -//nothing happens, so a tree-ssa optimizer will result in no fragment shader :) -#else - - specular_light *= scene_data.reflection_multiplier; - ambient_light *= albedo; //ambient must be multiplied by albedo at the end - -//ambient occlusion -#if defined(AO_USED) - - if (scene_data.ssao_enabled && scene_data.ssao_ao_affect > 0.0) { - float ssao = texture(sampler2D(ao_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), screen_uv).r; - ao = mix(ao, min(ao, ssao), scene_data.ssao_ao_affect); - ao_light_affect = mix(ao_light_affect, max(ao_light_affect, scene_data.ssao_light_affect), scene_data.ssao_ao_affect); - } - - ambient_light = mix(scene_data.ao_color.rgb, ambient_light, ao); - ao_light_affect = mix(1.0, ao, ao_light_affect); - specular_light = mix(scene_data.ao_color.rgb, specular_light, ao_light_affect); - diffuse_light = mix(scene_data.ao_color.rgb, diffuse_light, ao_light_affect); -#else - - if (scene_data.ssao_enabled) { - float ao = texture(sampler2D(ao_buffer, material_samplers[SAMPLER_LINEAR_CLAMP]), screen_uv).r; - ambient_light = mix(scene_data.ao_color.rgb, ambient_light, ao); - float ao_light_affect = mix(1.0, ao, scene_data.ssao_light_affect); - specular_light = mix(scene_data.ao_color.rgb, specular_light, ao_light_affect); - diffuse_light = mix(scene_data.ao_color.rgb, diffuse_light, ao_light_affect); - } - -#endif // AO_USED - - // base color remapping - diffuse_light *= 1.0 - metallic; // TODO: avoid all diffuse and ambient light calculations when metallic == 1 up to this point - ambient_light *= 1.0 - metallic; - -#ifdef MODE_MULTIPLE_RENDER_TARGETS - -#ifdef MODE_UNSHADED - diffuse_buffer = vec4(albedo.rgb, 0.0); - specular_buffer = vec4(0.0); - -#else - -#ifdef SSS_MODE_SKIN - sss_strength = -sss_strength; -#endif - diffuse_buffer = vec4(emission + diffuse_light + ambient_light, sss_strength); - specular_buffer = vec4(specular_light, metallic); -#endif - - // Draw "fixed" fog before volumetric fog to ensure volumetric fog can appear in front of the sky. - if (scene_data.fog_enabled) { - vec4 fog = fog_process(vertex); - diffuse_buffer.rgb = mix(diffuse_buffer.rgb, fog.rgb, fog.a); - specular_buffer.rgb = mix(specular_buffer.rgb, vec3(0.0), fog.a); - } - - if (scene_data.volumetric_fog_enabled) { - vec4 fog = volumetric_fog_process(screen_uv, -vertex.z); - diffuse_buffer.rgb = mix(diffuse_buffer.rgb, fog.rgb, fog.a); - specular_buffer.rgb = mix(specular_buffer.rgb, vec3(0.0), fog.a); - } - -#if defined(CUSTOM_FOG_USED) - diffuse_buffer.rgb = mix(diffuse_buffer.rgb, custom_fog.rgb, custom_fog.a); - specular_buffer.rgb = mix(specular_buffer.rgb, vec3(0.0), custom_fog.a); -#endif //CUSTOM_FOG_USED - -#else //MODE_MULTIPLE_RENDER_TARGETS - -#ifdef MODE_UNSHADED - frag_color = vec4(albedo, alpha); -#else - frag_color = vec4(emission + ambient_light + diffuse_light + specular_light, alpha); - //frag_color = vec4(1.0); -#endif //USE_NO_SHADING - - // Draw "fixed" fog before volumetric fog to ensure volumetric fog can appear in front of the sky. - if (scene_data.fog_enabled) { - vec4 fog = fog_process(vertex); - frag_color.rgb = mix(frag_color.rgb, fog.rgb, fog.a); - } - - if (scene_data.volumetric_fog_enabled) { - vec4 fog = volumetric_fog_process(screen_uv, -vertex.z); - frag_color.rgb = mix(frag_color.rgb, fog.rgb, fog.a); - } - -#if defined(CUSTOM_FOG_USED) - frag_color.rgb = mix(frag_color.rgb, custom_fog.rgb, custom_fog.a); -#endif //CUSTOM_FOG_USED - -#endif //MODE_MULTIPLE_RENDER_TARGETS - -#endif //MODE_RENDER_DEPTH -} diff --git a/servers/rendering/renderer_rd/shaders/scene_high_end_inc.glsl b/servers/rendering/renderer_rd/shaders/scene_high_end_inc.glsl deleted file mode 100644 index e29a490ca1..0000000000 --- a/servers/rendering/renderer_rd/shaders/scene_high_end_inc.glsl +++ /dev/null @@ -1,321 +0,0 @@ -#define M_PI 3.14159265359 -#define ROUGHNESS_MAX_LOD 5 - -#define MAX_GI_PROBES 8 - -#include "cluster_data_inc.glsl" - -layout(push_constant, binding = 0, std430) uniform DrawCall { - uint instance_index; - uint pad; //16 bits minimum size - vec2 bake_uv2_offset; //used for bake to uv2, ignored otherwise -} -draw_call; - -/* Set 0 Scene data that never changes, ever */ - -#define SAMPLER_NEAREST_CLAMP 0 -#define SAMPLER_LINEAR_CLAMP 1 -#define SAMPLER_NEAREST_WITH_MIPMAPS_CLAMP 2 -#define SAMPLER_LINEAR_WITH_MIPMAPS_CLAMP 3 -#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_CLAMP 4 -#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_CLAMP 5 -#define SAMPLER_NEAREST_REPEAT 6 -#define SAMPLER_LINEAR_REPEAT 7 -#define SAMPLER_NEAREST_WITH_MIPMAPS_REPEAT 8 -#define SAMPLER_LINEAR_WITH_MIPMAPS_REPEAT 9 -#define SAMPLER_NEAREST_WITH_MIPMAPS_ANISOTROPIC_REPEAT 10 -#define SAMPLER_LINEAR_WITH_MIPMAPS_ANISOTROPIC_REPEAT 11 - -layout(set = 0, binding = 1) uniform sampler material_samplers[12]; - -layout(set = 0, binding = 2) uniform sampler shadow_sampler; - -#define SDFGI_MAX_CASCADES 8 - -layout(set = 0, binding = 3, std140) uniform SceneData { - mat4 projection_matrix; - mat4 inv_projection_matrix; - - mat4 camera_matrix; - mat4 inv_camera_matrix; - - vec2 viewport_size; - vec2 screen_pixel_size; - - //use vec4s because std140 doesnt play nice with vec2s, z and w are wasted - vec4 directional_penumbra_shadow_kernel[32]; - vec4 directional_soft_shadow_kernel[32]; - vec4 penumbra_shadow_kernel[32]; - vec4 soft_shadow_kernel[32]; - - uint directional_penumbra_shadow_samples; - uint directional_soft_shadow_samples; - uint penumbra_shadow_samples; - uint soft_shadow_samples; - - vec4 ambient_light_color_energy; - - float ambient_color_sky_mix; - bool use_ambient_light; - bool use_ambient_cubemap; - bool use_reflection_cubemap; - - mat3 radiance_inverse_xform; - - vec2 shadow_atlas_pixel_size; - vec2 directional_shadow_pixel_size; - - uint directional_light_count; - float dual_paraboloid_side; - float z_far; - float z_near; - - bool ssao_enabled; - float ssao_light_affect; - float ssao_ao_affect; - bool roughness_limiter_enabled; - - float roughness_limiter_amount; - float roughness_limiter_limit; - uvec2 roughness_limiter_pad; - - vec4 ao_color; - - mat4 sdf_to_bounds; - - ivec3 sdf_offset; - bool material_uv2_mode; - - ivec3 sdf_size; - bool gi_upscale_for_msaa; - - bool volumetric_fog_enabled; - float volumetric_fog_inv_length; - float volumetric_fog_detail_spread; - uint volumetric_fog_pad; - - bool fog_enabled; - float fog_density; - float fog_height; - float fog_height_density; - - vec3 fog_light_color; - float fog_sun_scatter; - - float fog_aerial_perspective; - - float time; - float reflection_multiplier; // one normally, zero when rendering reflections - - bool pancake_shadows; -} - -scene_data; - -#define INSTANCE_FLAGS_USE_GI_BUFFERS (1 << 6) -#define INSTANCE_FLAGS_USE_SDFGI (1 << 7) -#define INSTANCE_FLAGS_USE_LIGHTMAP_CAPTURE (1 << 8) -#define INSTANCE_FLAGS_USE_LIGHTMAP (1 << 9) -#define INSTANCE_FLAGS_USE_SH_LIGHTMAP (1 << 10) -#define INSTANCE_FLAGS_USE_GIPROBE (1 << 11) -#define INSTANCE_FLAGS_MULTIMESH (1 << 12) -#define INSTANCE_FLAGS_MULTIMESH_FORMAT_2D (1 << 13) -#define INSTANCE_FLAGS_MULTIMESH_HAS_COLOR (1 << 14) -#define INSTANCE_FLAGS_MULTIMESH_HAS_CUSTOM_DATA (1 << 15) -#define INSTANCE_FLAGS_MULTIMESH_STRIDE_SHIFT 16 -//3 bits of stride -#define INSTANCE_FLAGS_MULTIMESH_STRIDE_MASK 0x7 - -#define INSTANCE_FLAGS_SKELETON (1 << 19) - -struct InstanceData { - mat4 transform; - mat4 normal_transform; - uint flags; - uint instance_uniforms_ofs; //base offset in global buffer for instance variables - uint gi_offset; //GI information when using lightmapping (VCT or lightmap index) - uint layer_mask; - vec4 lightmap_uv_scale; -}; - -layout(set = 0, binding = 4, std430) restrict readonly buffer Instances { - InstanceData data[]; -} -instances; - -layout(set = 0, binding = 5, std430) restrict readonly buffer Lights { - LightData data[]; -} -lights; - -layout(set = 0, binding = 6) buffer restrict readonly ReflectionProbeData { - ReflectionData data[]; -} -reflections; - -layout(set = 0, binding = 7, std140) uniform DirectionalLights { - DirectionalLightData data[MAX_DIRECTIONAL_LIGHT_DATA_STRUCTS]; -} -directional_lights; - -#define LIGHTMAP_FLAG_USE_DIRECTION 1 -#define LIGHTMAP_FLAG_USE_SPECULAR_DIRECTION 2 - -struct Lightmap { - mat3 normal_xform; -}; - -layout(set = 0, binding = 10, std140) restrict readonly buffer Lightmaps { - Lightmap data[]; -} -lightmaps; - -layout(set = 0, binding = 11) uniform texture2DArray lightmap_textures[MAX_LIGHTMAP_TEXTURES]; - -struct LightmapCapture { - vec4 sh[9]; -}; - -layout(set = 0, binding = 12, std140) restrict readonly buffer LightmapCaptures { - LightmapCapture data[]; -} -lightmap_captures; - -layout(set = 0, binding = 13) uniform texture2D decal_atlas; -layout(set = 0, binding = 14) uniform texture2D decal_atlas_srgb; - -layout(set = 0, binding = 15, std430) restrict readonly buffer Decals { - DecalData data[]; -} -decals; - -layout(set = 0, binding = 16) uniform utexture3D cluster_texture; - -layout(set = 0, binding = 17, std430) restrict readonly buffer ClusterData { - uint indices[]; -} -cluster_data; - -layout(set = 0, binding = 18) uniform texture2D directional_shadow_atlas; - -layout(set = 0, binding = 19, std430) restrict readonly buffer GlobalVariableData { - vec4 data[]; -} -global_variables; - -struct SDFGIProbeCascadeData { - vec3 position; - float to_probe; - ivec3 probe_world_offset; - float to_cell; // 1/bounds * grid_size -}; - -layout(set = 0, binding = 20, std140) uniform SDFGI { - vec3 grid_size; - uint max_cascades; - - bool use_occlusion; - int probe_axis_size; - float probe_to_uvw; - float normal_bias; - - vec3 lightprobe_tex_pixel_size; - float energy; - - vec3 lightprobe_uv_offset; - float y_mult; - - vec3 occlusion_clamp; - uint pad3; - - vec3 occlusion_renormalize; - uint pad4; - - vec3 cascade_probe_size; - uint pad5; - - SDFGIProbeCascadeData cascades[SDFGI_MAX_CASCADES]; -} -sdfgi; - -// decal atlas - -/* Set 1, Radiance */ - -#ifdef USE_RADIANCE_CUBEMAP_ARRAY - -layout(set = 1, binding = 0) uniform textureCubeArray radiance_cubemap; - -#else - -layout(set = 1, binding = 0) uniform textureCube radiance_cubemap; - -#endif - -/* Set 2, Reflection and Shadow Atlases (view dependent) */ - -layout(set = 2, binding = 0) uniform textureCubeArray reflection_atlas; - -layout(set = 2, binding = 1) uniform texture2D shadow_atlas; - -layout(set = 2, binding = 2) uniform texture3D gi_probe_textures[MAX_GI_PROBES]; - -/* Set 3, Render Buffers */ - -#ifdef MODE_RENDER_SDF - -layout(r16ui, set = 3, binding = 0) uniform restrict writeonly uimage3D albedo_volume_grid; -layout(r32ui, set = 3, binding = 1) uniform restrict writeonly uimage3D emission_grid; -layout(r32ui, set = 3, binding = 2) uniform restrict writeonly uimage3D emission_aniso_grid; -layout(r32ui, set = 3, binding = 3) uniform restrict uimage3D geom_facing_grid; - -//still need to be present for shaders that use it, so remap them to something -#define depth_buffer shadow_atlas -#define color_buffer shadow_atlas -#define normal_roughness_buffer shadow_atlas - -#else - -layout(set = 3, binding = 0) uniform texture2D depth_buffer; -layout(set = 3, binding = 1) uniform texture2D color_buffer; -layout(set = 3, binding = 2) uniform texture2D normal_roughness_buffer; -layout(set = 3, binding = 4) uniform texture2D ao_buffer; -layout(set = 3, binding = 5) uniform texture2D ambient_buffer; -layout(set = 3, binding = 6) uniform texture2D reflection_buffer; -layout(set = 3, binding = 7) uniform texture2DArray sdfgi_lightprobe_texture; -layout(set = 3, binding = 8) uniform texture3D sdfgi_occlusion_cascades; - -struct GIProbeData { - mat4 xform; - vec3 bounds; - float dynamic_range; - - float bias; - float normal_bias; - bool blend_ambient; - uint texture_slot; - - float anisotropy_strength; - float ambient_occlusion; - float ambient_occlusion_size; - uint mipmaps; -}; - -layout(set = 3, binding = 9, std140) uniform GIProbes { - GIProbeData data[MAX_GI_PROBES]; -} -gi_probes; - -layout(set = 3, binding = 10) uniform texture3D volumetric_fog_texture; - -#endif - -/* Set 4 Skeleton & Instancing (Multimesh) */ - -layout(set = 4, binding = 0, std430) restrict readonly buffer Transforms { - vec4 data[]; -} -transforms; - -/* Set 5 User Material */ diff --git a/servers/rendering/renderer_scene_render.h b/servers/rendering/renderer_scene_render.h index cc543a7599..0aae67fd34 100644 --- a/servers/rendering/renderer_scene_render.h +++ b/servers/rendering/renderer_scene_render.h @@ -260,6 +260,8 @@ public: virtual void sdfgi_set_debug_probe_select(const Vector3 &p_position, const Vector3 &p_dir) = 0; + virtual bool is_low_end() const = 0; + virtual void update() = 0; virtual ~RendererSceneRender() {} }; diff --git a/servers/rendering_server.cpp b/servers/rendering_server.cpp index 433b56ab41..b971704ce2 100644 --- a/servers/rendering_server.cpp +++ b/servers/rendering_server.cpp @@ -2268,6 +2268,9 @@ RenderingServer::RenderingServer() { GLOBAL_DEF("rendering/quality/2d_shadow_atlas/size", 2048); + GLOBAL_DEF("rendering/quality/rd_renderer/use_low_end_renderer", false); + GLOBAL_DEF("rendering/quality/rd_renderer/use_low_end_renderer.mobile", true); + GLOBAL_DEF("rendering/quality/shadow_atlas/size", 4096); GLOBAL_DEF("rendering/quality/shadow_atlas/size.mobile", 2048); ProjectSettings::get_singleton()->set_custom_property_info("rendering/quality/shadow_atlas/size", PropertyInfo(Variant::INT, "rendering/quality/shadow_atlas/size", PROPERTY_HINT_RANGE, "256,16384")); -- cgit v1.2.3