diff options
Diffstat (limited to 'drivers/gles2/rasterizer_scene_gles2.cpp')
| -rw-r--r-- | drivers/gles2/rasterizer_scene_gles2.cpp | 2087 |
1 files changed, 2080 insertions, 7 deletions
diff --git a/drivers/gles2/rasterizer_scene_gles2.cpp b/drivers/gles2/rasterizer_scene_gles2.cpp index f7712be5d0..00a79db347 100644 --- a/drivers/gles2/rasterizer_scene_gles2.cpp +++ b/drivers/gles2/rasterizer_scene_gles2.cpp @@ -28,6 +28,7 @@ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "rasterizer_scene_gles2.h" +#include "math/transform.h" #include "math_funcs.h" #include "os/os.h" #include "project_settings.h" @@ -38,28 +39,385 @@ #define glClearDepth glClearDepthf #endif +static const GLenum _cube_side_enum[6] = { + + GL_TEXTURE_CUBE_MAP_NEGATIVE_X, + GL_TEXTURE_CUBE_MAP_POSITIVE_X, + GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, + GL_TEXTURE_CUBE_MAP_POSITIVE_Y, + GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, + GL_TEXTURE_CUBE_MAP_POSITIVE_Z, + +}; + /* SHADOW ATLAS API */ RID RasterizerSceneGLES2::shadow_atlas_create() { - return RID(); + ShadowAtlas *shadow_atlas = memnew(ShadowAtlas); + shadow_atlas->fbo = 0; + shadow_atlas->depth = 0; + shadow_atlas->size = 0; + shadow_atlas->smallest_subdiv = 0; + + for (int i = 0; i < 4; i++) { + shadow_atlas->size_order[i] = i; + } + + return shadow_atlas_owner.make_rid(shadow_atlas); } void RasterizerSceneGLES2::shadow_atlas_set_size(RID p_atlas, int p_size) { + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas); + ERR_FAIL_COND(!shadow_atlas); + ERR_FAIL_COND(p_size < 0); + + p_size = next_power_of_2(p_size); + + if (p_size == shadow_atlas->size) + return; + + // erase the old atlast + if (shadow_atlas->fbo) { + glDeleteTextures(1, &shadow_atlas->depth); + glDeleteFramebuffers(1, &shadow_atlas->fbo); + + shadow_atlas->fbo = 0; + shadow_atlas->depth = 0; + } + + // erase shadow atlast references from lights + for (Map<RID, uint32_t>::Element *E = shadow_atlas->shadow_owners.front(); E; E = E->next()) { + LightInstance *li = light_instance_owner.getornull(E->key()); + ERR_CONTINUE(!li); + li->shadow_atlases.erase(p_atlas); + } + + shadow_atlas->shadow_owners.clear(); + + shadow_atlas->size = p_size; + + if (shadow_atlas->size) { + glGenFramebuffers(1, &shadow_atlas->fbo); + glBindFramebuffer(GL_FRAMEBUFFER, shadow_atlas->fbo); + + // create a depth texture + glActiveTexture(GL_TEXTURE0); + glGenTextures(1, &shadow_atlas->depth); + glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth); + glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, shadow_atlas->size, shadow_atlas->size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, shadow_atlas->depth, 0); + + glViewport(0, 0, shadow_atlas->size, shadow_atlas->size); + + glDepthMask(GL_TRUE); + + glClearDepth(0.0f); + glClear(GL_DEPTH_BUFFER_BIT); + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + } } void RasterizerSceneGLES2::shadow_atlas_set_quadrant_subdivision(RID p_atlas, int p_quadrant, int p_subdivision) { + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas); + ERR_FAIL_COND(!shadow_atlas); + ERR_FAIL_INDEX(p_quadrant, 4); + ERR_FAIL_INDEX(p_subdivision, 16384); + + uint32_t subdiv = next_power_of_2(p_subdivision); + if (subdiv & 0xaaaaaaaa) { // sqrt(subdiv) must be integer + subdiv <<= 1; + } + + subdiv = int(Math::sqrt((float)subdiv)); + + if (shadow_atlas->quadrants[p_quadrant].shadows.size() == subdiv) + return; + + // erase all data from the quadrant + for (int i = 0; i < shadow_atlas->quadrants[p_quadrant].shadows.size(); i++) { + if (shadow_atlas->quadrants[p_quadrant].shadows[i].owner.is_valid()) { + shadow_atlas->shadow_owners.erase(shadow_atlas->quadrants[p_quadrant].shadows[i].owner); + + LightInstance *li = light_instance_owner.getornull(shadow_atlas->quadrants[p_quadrant].shadows[i].owner); + ERR_CONTINUE(!li); + li->shadow_atlases.erase(p_atlas); + } + } + + shadow_atlas->quadrants[p_quadrant].shadows.resize(0); + shadow_atlas->quadrants[p_quadrant].shadows.resize(subdiv); + shadow_atlas->quadrants[p_quadrant].subdivision = subdiv; + + // cache the smallest subdivision for faster allocations + + shadow_atlas->smallest_subdiv = 1 << 30; + + for (int i = 0; i < 4; i++) { + if (shadow_atlas->quadrants[i].subdivision) { + shadow_atlas->smallest_subdiv = MIN(shadow_atlas->smallest_subdiv, shadow_atlas->quadrants[i].subdivision); + } + } + + if (shadow_atlas->smallest_subdiv == 1 << 30) { + shadow_atlas->smallest_subdiv = 0; + } + + // re-sort the quadrants + + int swaps = 0; + do { + swaps = 0; + + for (int i = 0; i < 3; i++) { + if (shadow_atlas->quadrants[shadow_atlas->size_order[i]].subdivision < shadow_atlas->quadrants[shadow_atlas->size_order[i + 1]].subdivision) { + SWAP(shadow_atlas->size_order[i], shadow_atlas->size_order[i + 1]); + swaps++; + } + } + + } while (swaps > 0); +} + +bool RasterizerSceneGLES2::_shadow_atlas_find_shadow(ShadowAtlas *shadow_atlas, int *p_in_quadrants, int p_quadrant_count, int p_current_subdiv, uint64_t p_tick, int &r_quadrant, int &r_shadow) { + + for (int i = p_quadrant_count - 1; i >= 0; i--) { + int qidx = p_in_quadrants[i]; + + if (shadow_atlas->quadrants[qidx].subdivision == (uint32_t)p_current_subdiv) { + return false; + } + + // look for an empty space + + int sc = shadow_atlas->quadrants[qidx].shadows.size(); + + ShadowAtlas::Quadrant::Shadow *sarr = shadow_atlas->quadrants[qidx].shadows.ptrw(); + + int found_free_idx = -1; // found a free one + int found_used_idx = -1; // found an existing one, must steal it + uint64_t min_pass = 0; // pass of the existing one, try to use the least recently + + for (int j = 0; j < sc; j++) { + if (!sarr[j].owner.is_valid()) { + found_free_idx = j; + break; + } + + LightInstance *sli = light_instance_owner.getornull(sarr[j].owner); + ERR_CONTINUE(!sli); + + if (sli->last_scene_pass != scene_pass) { + + // was just allocated, don't kill it so soon, wait a bit... + + if (p_tick - sarr[j].alloc_tick < shadow_atlas_realloc_tolerance_msec) { + continue; + } + + if (found_used_idx == -1 || sli->last_scene_pass < min_pass) { + found_used_idx = j; + min_pass = sli->last_scene_pass; + } + } + } + + if (found_free_idx == -1 && found_used_idx == -1) { + continue; // nothing found + } + + if (found_free_idx == -1 && found_used_idx != -1) { + found_free_idx = found_used_idx; + } + + r_quadrant = qidx; + r_shadow = found_free_idx; + + return true; + } + + return false; } bool RasterizerSceneGLES2::shadow_atlas_update_light(RID p_atlas, RID p_light_intance, float p_coverage, uint64_t p_light_version) { + + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas); + ERR_FAIL_COND_V(!shadow_atlas, false); + + LightInstance *li = light_instance_owner.getornull(p_light_intance); + ERR_FAIL_COND_V(!li, false); + + if (shadow_atlas->size == 0 || shadow_atlas->smallest_subdiv == 0) { + return false; + } + + uint32_t quad_size = shadow_atlas->size >> 1; + int desired_fit = MIN(quad_size / shadow_atlas->smallest_subdiv, next_power_of_2(quad_size * p_coverage)); + + int valid_quadrants[4]; + int valid_quadrant_count = 0; + int best_size = -1; + int best_subdiv = -1; + + for (int i = 0; i < 4; i++) { + int q = shadow_atlas->size_order[i]; + int sd = shadow_atlas->quadrants[q].subdivision; + + if (sd == 0) { + continue; + } + + int max_fit = quad_size / sd; + + if (best_size != -1 && max_fit > best_size) { + break; // what we asked for is bigger than this. + } + + valid_quadrants[valid_quadrant_count] = q; + valid_quadrant_count++; + + best_subdiv = sd; + + if (max_fit >= desired_fit) { + best_size = max_fit; + } + } + + ERR_FAIL_COND_V(valid_quadrant_count == 0, false); // no suitable block available + + uint64_t tick = OS::get_singleton()->get_ticks_msec(); + + if (shadow_atlas->shadow_owners.has(p_light_intance)) { + // light was already known! + + uint32_t key = shadow_atlas->shadow_owners[p_light_intance]; + uint32_t q = (key >> ShadowAtlas::QUADRANT_SHIFT) & 0x3; + uint32_t s = key & ShadowAtlas::SHADOW_INDEX_MASK; + + bool should_realloc = shadow_atlas->quadrants[q].subdivision != (uint32_t)best_subdiv && (shadow_atlas->quadrants[q].shadows[s].alloc_tick - tick > shadow_atlas_realloc_tolerance_msec); + + bool should_redraw = shadow_atlas->quadrants[q].shadows[s].version != p_light_version; + + if (!should_realloc) { + shadow_atlas->quadrants[q].shadows.write[s].version = p_light_version; + return should_redraw; + } + + int new_quadrant; + int new_shadow; + + // find a better place + + if (_shadow_atlas_find_shadow(shadow_atlas, valid_quadrants, valid_quadrant_count, shadow_atlas->quadrants[q].subdivision, tick, new_quadrant, new_shadow)) { + // found a better place + + ShadowAtlas::Quadrant::Shadow *sh = &shadow_atlas->quadrants[new_quadrant].shadows.write[new_shadow]; + if (sh->owner.is_valid()) { + // it is take but invalid, so we can take it + + shadow_atlas->shadow_owners.erase(sh->owner); + LightInstance *sli = light_instance_owner.get(sh->owner); + sli->shadow_atlases.erase(p_atlas); + } + + // erase previous + shadow_atlas->quadrants[q].shadows.write[s].version = 0; + shadow_atlas->quadrants[q].shadows.write[s].owner = RID(); + + sh->owner = p_light_intance; + sh->alloc_tick = tick; + sh->version = p_light_version; + li->shadow_atlases.insert(p_atlas); + + // make a new key + key = new_quadrant << ShadowAtlas::QUADRANT_SHIFT; + key |= new_shadow; + + // update it in the map + shadow_atlas->shadow_owners[p_light_intance] = key; + + // make it dirty, so we redraw + return true; + } + + // no better place found, so we keep the current place + + shadow_atlas->quadrants[q].shadows.write[s].version = p_light_version; + + return should_redraw; + } + + int new_quadrant; + int new_shadow; + + if (_shadow_atlas_find_shadow(shadow_atlas, valid_quadrants, valid_quadrant_count, -1, tick, new_quadrant, new_shadow)) { + // found a better place + + ShadowAtlas::Quadrant::Shadow *sh = &shadow_atlas->quadrants[new_quadrant].shadows.write[new_shadow]; + if (sh->owner.is_valid()) { + // it is take but invalid, so we can take it + + shadow_atlas->shadow_owners.erase(sh->owner); + LightInstance *sli = light_instance_owner.get(sh->owner); + sli->shadow_atlases.erase(p_atlas); + } + + sh->owner = p_light_intance; + sh->alloc_tick = tick; + sh->version = p_light_version; + li->shadow_atlases.insert(p_atlas); + + // make a new key + uint32_t key = new_quadrant << ShadowAtlas::QUADRANT_SHIFT; + key |= new_shadow; + + // update it in the map + shadow_atlas->shadow_owners[p_light_intance] = key; + + // make it dirty, so we redraw + return true; + } + return false; } void RasterizerSceneGLES2::set_directional_shadow_count(int p_count) { + directional_shadow.light_count = p_count; + directional_shadow.current_light = 0; } int RasterizerSceneGLES2::get_directional_light_shadow_size(RID p_light_intance) { - return 0; + + ERR_FAIL_COND_V(directional_shadow.light_count == 0, 0); + + int shadow_size; + + if (directional_shadow.light_count == 1) { + shadow_size = directional_shadow.size; + } else { + shadow_size = directional_shadow.size / 2; //more than 4 not supported anyway + } + + LightInstance *light_instance = light_instance_owner.getornull(p_light_intance); + ERR_FAIL_COND_V(!light_instance, 0); + + switch (light_instance->light_ptr->directional_shadow_mode) { + case VS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL: + break; //none + case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS: + case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS: + shadow_size /= 2; + break; + } + + return shadow_size; } ////////////////////////////////////////////////////// @@ -105,86 +463,183 @@ bool RasterizerSceneGLES2::reflection_probe_instance_postprocess_step(RID p_inst RID RasterizerSceneGLES2::environment_create() { - return RID(); + Environment *env = memnew(Environment); + + return environment_owner.make_rid(env); } void RasterizerSceneGLES2::environment_set_background(RID p_env, VS::EnvironmentBG p_bg) { + + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + env->bg_mode = p_bg; } void RasterizerSceneGLES2::environment_set_sky(RID p_env, RID p_sky) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + env->sky = p_sky; } void RasterizerSceneGLES2::environment_set_sky_custom_fov(RID p_env, float p_scale) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + env->sky_custom_fov = p_scale; } void RasterizerSceneGLES2::environment_set_bg_color(RID p_env, const Color &p_color) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + env->bg_color = p_color; } void RasterizerSceneGLES2::environment_set_bg_energy(RID p_env, float p_energy) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + env->bg_energy = p_energy; } void RasterizerSceneGLES2::environment_set_canvas_max_layer(RID p_env, int p_max_layer) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + env->canvas_max_layer = p_max_layer; } void RasterizerSceneGLES2::environment_set_ambient_light(RID p_env, const Color &p_color, float p_energy, float p_sky_contribution) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + env->ambient_color = p_color; + env->ambient_energy = p_energy; + env->ambient_sky_contribution = p_sky_contribution; } void RasterizerSceneGLES2::environment_set_dof_blur_far(RID p_env, bool p_enable, float p_distance, float p_transition, float p_amount, VS::EnvironmentDOFBlurQuality p_quality) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_dof_blur_near(RID p_env, bool p_enable, float p_distance, float p_transition, float p_amount, VS::EnvironmentDOFBlurQuality p_quality) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_glow(RID p_env, bool p_enable, int p_level_flags, float p_intensity, float p_strength, float p_bloom_threshold, VS::EnvironmentGlowBlendMode p_blend_mode, float p_hdr_bleed_threshold, float p_hdr_bleed_scale, bool p_bicubic_upscale) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_fog(RID p_env, bool p_enable, float p_begin, float p_end, RID p_gradient_texture) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_ssr(RID p_env, bool p_enable, int p_max_steps, float p_fade_in, float p_fade_out, float p_depth_tolerance, bool p_roughness) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_ssao(RID p_env, bool p_enable, float p_radius, float p_intensity, float p_radius2, float p_intensity2, float p_bias, float p_light_affect, float p_ao_channel_affect, const Color &p_color, VS::EnvironmentSSAOQuality p_quality, VisualServer::EnvironmentSSAOBlur p_blur, float p_bilateral_sharpness) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_tonemap(RID p_env, VS::EnvironmentToneMapper p_tone_mapper, float p_exposure, float p_white, bool p_auto_exposure, float p_min_luminance, float p_max_luminance, float p_auto_exp_speed, float p_auto_exp_scale) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_adjustment(RID p_env, bool p_enable, float p_brightness, float p_contrast, float p_saturation, RID p_ramp) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_fog(RID p_env, bool p_enable, const Color &p_color, const Color &p_sun_color, float p_sun_amount) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_fog_depth(RID p_env, bool p_enable, float p_depth_begin, float p_depth_curve, bool p_transmit, float p_transmit_curve) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } void RasterizerSceneGLES2::environment_set_fog_height(RID p_env, bool p_enable, float p_min_height, float p_max_height, float p_height_curve) { + Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); } bool RasterizerSceneGLES2::is_environment(RID p_env) { - return false; + return environment_owner.owns(p_env); } VS::EnvironmentBG RasterizerSceneGLES2::environment_get_background(RID p_env) { - return VS::ENV_BG_CLEAR_COLOR; + const Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND_V(!env, VS::ENV_BG_MAX); + + return env->bg_mode; } int RasterizerSceneGLES2::environment_get_canvas_max_layer(RID p_env) { - return 0; + const Environment *env = environment_owner.getornull(p_env); + ERR_FAIL_COND_V(!env, -1); + + return env->canvas_max_layer; } RID RasterizerSceneGLES2::light_instance_create(RID p_light) { - return RID(); + + LightInstance *light_instance = memnew(LightInstance); + + light_instance->last_scene_pass = 0; + + light_instance->light = p_light; + light_instance->light_ptr = storage->light_owner.getornull(p_light); + + ERR_FAIL_COND_V(!light_instance->light_ptr, RID()); + + light_instance->self = light_instance_owner.make_rid(light_instance); + + return light_instance->self; } void RasterizerSceneGLES2::light_instance_set_transform(RID p_light_instance, const Transform &p_transform) { + + LightInstance *light_instance = light_instance_owner.getornull(p_light_instance); + ERR_FAIL_COND(!light_instance); + + light_instance->transform = p_transform; } void RasterizerSceneGLES2::light_instance_set_shadow_transform(RID p_light_instance, const CameraMatrix &p_projection, const Transform &p_transform, float p_far, float p_split, int p_pass, float p_bias_scale) { + + LightInstance *light_instance = light_instance_owner.getornull(p_light_instance); + ERR_FAIL_COND(!light_instance); + + if (light_instance->light_ptr->type != VS::LIGHT_DIRECTIONAL) { + p_pass = 0; + } + + ERR_FAIL_INDEX(p_pass, 4); + + light_instance->shadow_transform[p_pass].camera = p_projection; + light_instance->shadow_transform[p_pass].transform = p_transform; + light_instance->shadow_transform[p_pass].farplane = p_far; + light_instance->shadow_transform[p_pass].split = p_split; + light_instance->shadow_transform[p_pass].bias_scale = p_bias_scale; } void RasterizerSceneGLES2::light_instance_mark_visible(RID p_light_instance) { + + LightInstance *light_instance = light_instance_owner.getornull(p_light_instance); + ERR_FAIL_COND(!light_instance); + + light_instance->last_scene_pass = scene_pass; } ////////////////////// @@ -206,13 +661,1537 @@ void RasterizerSceneGLES2::gi_probe_instance_set_bounds(RID p_probe, const Vecto //////////////////////////// //////////////////////////// +void RasterizerSceneGLES2::_add_geometry(RasterizerStorageGLES2::Geometry *p_geometry, InstanceBase *p_instance, RasterizerStorageGLES2::GeometryOwner *p_owner, int p_material, bool p_depth_pass, bool p_shadow_pass) { + + RasterizerStorageGLES2::Material *material = NULL; + RID material_src; + + if (p_instance->material_override.is_valid()) { + material_src = p_instance->material_override; + } else if (p_material >= 0) { + material_src = p_instance->materials[p_material]; + } else { + material_src = p_geometry->material; + } + + if (material_src.is_valid()) { + material = storage->material_owner.getornull(material_src); + + if (!material->shader || !material->shader->valid) { + material = NULL; + } + } + + if (!material) { + material = storage->material_owner.getptr(default_material); + } + + ERR_FAIL_COND(!material); + + _add_geometry_with_material(p_geometry, p_instance, p_owner, material, p_depth_pass, p_shadow_pass); + + while (material->next_pass.is_valid()) { + material = storage->material_owner.getornull(material->next_pass); + + if (!material || !material->shader || !material->shader->valid) { + break; + } + + _add_geometry_with_material(p_geometry, p_instance, p_owner, material, p_depth_pass, p_shadow_pass); + } +} +void RasterizerSceneGLES2::_add_geometry_with_material(RasterizerStorageGLES2::Geometry *p_geometry, InstanceBase *p_instance, RasterizerStorageGLES2::GeometryOwner *p_owner, RasterizerStorageGLES2::Material *p_material, bool p_depth_pass, bool p_shadow_pass) { + + bool has_base_alpha = (p_material->shader->spatial.uses_alpha && !p_material->shader->spatial.uses_alpha_scissor) || p_material->shader->spatial.uses_screen_texture || p_material->shader->spatial.uses_depth_texture; + bool has_blend_alpha = p_material->shader->spatial.blend_mode != RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_MIX; + bool has_alpha = has_base_alpha || has_blend_alpha; + + // TODO add this stuff + // bool mirror = p_instance->mirror; + // bool no_cull = false; + + RenderList::Element *e = has_alpha ? render_list.add_alpha_element() : render_list.add_element(); + + if (!e) { + return; + } + + e->geometry = p_geometry; + e->material = p_material; + e->instance = p_instance; + e->owner = p_owner; + e->sort_key = 0; + + // TODO check render pass of geometry + + // TODO check directional light flag + + if (p_depth_pass) { + // if we are in the depth pass we can sort out a few things to improve performance + + if (has_blend_alpha || p_material->shader->spatial.uses_depth_texture || (has_base_alpha && p_material->shader->spatial.depth_draw_mode != RasterizerStorageGLES2::Shader::Spatial::DEPTH_DRAW_ALPHA_PREPASS)) { + return; + } + + if (p_material->shader->spatial.uses_alpha_scissor && !p_material->shader->spatial.writes_modelview_or_projection && !p_material->shader->spatial.uses_vertex && !p_material->shader->spatial.uses_discard && p_material->shader->spatial.depth_draw_mode != RasterizerStorageGLES2::Shader::Spatial::DEPTH_DRAW_ALPHA_PREPASS) { + + // shader doesn't use discard or writes a custom vertex position, + // so we can use a stripped down shader instead + + // TODO twosided and worldcoord stuff + + p_material = storage->material_owner.getptr(default_material_twosided); + } + + has_alpha = false; + } + + e->sort_key |= uint64_t(e->geometry->index) << RenderList::SORT_KEY_GEOMETRY_INDEX_SHIFT; + e->sort_key |= uint64_t(e->instance->base_type) << RenderList::SORT_KEY_GEOMETRY_TYPE_SHIFT; + + if (p_material->shader->spatial.unshaded) { + e->sort_key |= SORT_KEY_UNSHADED_FLAG; + } + + if (!p_depth_pass) { + e->sort_key |= uint64_t(e->material->index) << RenderList::SORT_KEY_MATERIAL_INDEX_SHIFT; + + e->sort_key |= uint64_t(p_material->render_priority + 128) << RenderList::SORT_KEY_PRIORITY_SHIFT; + } else { + // TODO + } + + if (p_material->shader->spatial.uses_time) { + VisualServerRaster::redraw_request(); + } +} + +void RasterizerSceneGLES2::_fill_render_list(InstanceBase **p_cull_result, int p_cull_count, bool p_depth_pass, bool p_shadow_pass) { + + for (int i = 0; i < p_cull_count; i++) { + + InstanceBase *instance = p_cull_result[i]; + + switch (instance->base_type) { + + case VS::INSTANCE_MESH: { + + RasterizerStorageGLES2::Mesh *mesh = storage->mesh_owner.getornull(instance->base); + ERR_CONTINUE(!mesh); + + int num_surfaces = mesh->surfaces.size(); + + for (int i = 0; i < num_surfaces; i++) { + int material_index = instance->materials[i].is_valid() ? i : -1; + + RasterizerStorageGLES2::Surface *surface = mesh->surfaces[i]; + + _add_geometry(surface, instance, NULL, material_index, p_depth_pass, p_shadow_pass); + } + + } break; + + case VS::INSTANCE_MULTIMESH: { + RasterizerStorageGLES2::MultiMesh *multi_mesh = storage->multimesh_owner.getptr(instance->base); + ERR_CONTINUE(!multi_mesh); + + if (multi_mesh->size == 0 || multi_mesh->visible_instances == 0) + continue; + + RasterizerStorageGLES2::Mesh *mesh = storage->mesh_owner.getptr(multi_mesh->mesh); + if (!mesh) + continue; + + int ssize = mesh->surfaces.size(); + + for (int i = 0; i < ssize; i++) { + RasterizerStorageGLES2::Surface *s = mesh->surfaces[i]; + _add_geometry(s, instance, multi_mesh, -1, p_depth_pass, p_shadow_pass); + } + } break; + + default: { + + } break; + } + } +} + +static const GLenum gl_primitive[] = { + GL_POINTS, + GL_LINES, + GL_LINE_STRIP, + GL_LINE_LOOP, + GL_TRIANGLES, + GL_TRIANGLE_STRIP, + GL_TRIANGLE_FAN +}; + +void RasterizerSceneGLES2::_setup_material(RasterizerStorageGLES2::Material *p_material, bool p_use_radiance_map, bool p_reverse_cull, bool p_shadow_atlas, bool p_skeleton_tex, Size2i p_skeleton_tex_size) { + + // material parameters + + state.scene_shader.set_custom_shader(p_material->shader->custom_code_id); + + state.scene_shader.bind(); + + if (p_material->shader->spatial.no_depth_test) { + glDisable(GL_DEPTH_TEST); + } else { + glEnable(GL_DEPTH_TEST); + } + + // TODO whyyyyy???? + p_reverse_cull = true; + + switch (p_material->shader->spatial.cull_mode) { + case RasterizerStorageGLES2::Shader::Spatial::CULL_MODE_DISABLED: { + glDisable(GL_CULL_FACE); + } break; + + case RasterizerStorageGLES2::Shader::Spatial::CULL_MODE_BACK: { + glEnable(GL_CULL_FACE); + glCullFace(p_reverse_cull ? GL_FRONT : GL_BACK); + } break; + case RasterizerStorageGLES2::Shader::Spatial::CULL_MODE_FRONT: { + glEnable(GL_CULL_FACE); + glCullFace(p_reverse_cull ? GL_BACK : GL_FRONT); + } break; + } + + int tc = p_material->textures.size(); + Pair<StringName, RID> *textures = p_material->textures.ptrw(); + + ShaderLanguage::ShaderNode::Uniform::Hint *texture_hints = p_material->shader->texture_hints.ptrw(); + + int num_default_tex = p_use_radiance_map ? 1 : 0; + + if (p_material->shader->spatial.uses_screen_texture) { + num_default_tex = MIN(num_default_tex, 2); + } + + if (p_shadow_atlas) { + num_default_tex = MIN(num_default_tex, 3); + } + + if (p_skeleton_tex) { + num_default_tex = MIN(num_default_tex, 4); + + state.scene_shader.set_uniform(SceneShaderGLES2::SKELETON_TEXTURE_SIZE, p_skeleton_tex_size); + } + + for (int i = 0; i < tc; i++) { + + glActiveTexture(GL_TEXTURE0 + num_default_tex + i); + + RasterizerStorageGLES2::Texture *t = storage->texture_owner.getornull(textures[i].second); + + if (!t) { + + switch (texture_hints[i]) { + case ShaderLanguage::ShaderNode::Uniform::HINT_BLACK_ALBEDO: + case ShaderLanguage::ShaderNode::Uniform::HINT_BLACK: { + glBindTexture(GL_TEXTURE_2D, storage->resources.black_tex); + } break; + case ShaderLanguage::ShaderNode::Uniform::HINT_ANISO: { + glBindTexture(GL_TEXTURE_2D, storage->resources.aniso_tex); + } break; + case ShaderLanguage::ShaderNode::Uniform::HINT_NORMAL: { + glBindTexture(GL_TEXTURE_2D, storage->resources.normal_tex); + } break; + default: { + glBindTexture(GL_TEXTURE_2D, storage->resources.white_tex); + } break; + } + + continue; + } + + t = t->get_ptr(); + + glBindTexture(t->target, t->tex_id); + } + state.scene_shader.use_material((void *)p_material, num_default_tex); +} + +void RasterizerSceneGLES2::_setup_geometry(RenderList::Element *p_element, RasterizerStorageGLES2::Skeleton *p_skeleton) { + + state.scene_shader.set_conditional(SceneShaderGLES2::USE_SKELETON, p_skeleton != NULL); + // state.scene_shader.set_conditional(SceneShaderGLES2::USE_SKELETON_SOFTWARE, !storage->config.float_texture_supported); + state.scene_shader.set_conditional(SceneShaderGLES2::USE_SKELETON_SOFTWARE, true); + + switch (p_element->instance->base_type) { + + case VS::INSTANCE_MESH: { + RasterizerStorageGLES2::Surface *s = static_cast<RasterizerStorageGLES2::Surface *>(p_element->geometry); + + state.scene_shader.set_conditional(SceneShaderGLES2::USE_INSTANCING, false); + state.scene_shader.set_conditional(SceneShaderGLES2::ENABLE_COLOR_INTERP, s->attribs[VS::ARRAY_COLOR].enabled); + state.scene_shader.set_conditional(SceneShaderGLES2::ENABLE_UV_INTERP, s->attribs[VS::ARRAY_TEX_UV].enabled); + state.scene_shader.set_conditional(SceneShaderGLES2::ENABLE_UV2_INTERP, s->attribs[VS::ARRAY_TEX_UV2].enabled); + + } break; + + case VS::INSTANCE_MULTIMESH: { + RasterizerStorageGLES2::MultiMesh *multi_mesh = static_cast<RasterizerStorageGLES2::MultiMesh *>(p_element->owner); + RasterizerStorageGLES2::Surface *s = static_cast<RasterizerStorageGLES2::Surface *>(p_element->geometry); + + state.scene_shader.set_conditional(SceneShaderGLES2::ENABLE_COLOR_INTERP, true); + state.scene_shader.set_conditional(SceneShaderGLES2::USE_INSTANCING, true); + + state.scene_shader.set_conditional(SceneShaderGLES2::ENABLE_UV_INTERP, s->attribs[VS::ARRAY_TEX_UV].enabled); + state.scene_shader.set_conditional(SceneShaderGLES2::ENABLE_UV2_INTERP, s->attribs[VS::ARRAY_TEX_UV2].enabled); + } break; + + default: { + + } break; + } + + if (false && storage->config.float_texture_supported) { + if (p_skeleton) { + glActiveTexture(GL_TEXTURE4); + glBindTexture(GL_TEXTURE_2D, p_skeleton->tex_id); + } + + return; + } + + if (p_skeleton) { + ERR_FAIL_COND(p_skeleton->use_2d); + + PoolVector<float> &transform_buffer = storage->resources.skeleton_transform_cpu_buffer; + + switch (p_element->instance->base_type) { + case VS::INSTANCE_MESH: { + RasterizerStorageGLES2::Surface *s = static_cast<RasterizerStorageGLES2::Surface *>(p_element->geometry); + + if (!s->attribs[VS::ARRAY_BONES].enabled || !s->attribs[VS::ARRAY_WEIGHTS].enabled) { + break; // the whole instance has a skeleton, but this surface is not affected by it. + } + + // 3 * vec4 per vertex + if (transform_buffer.size() < s->array_len * 12) { + transform_buffer.resize(s->array_len * 12); + } + + const size_t bones_offset = s->attribs[VS::ARRAY_BONES].offset; + const size_t bones_stride = s->attribs[VS::ARRAY_BONES].stride; + const size_t bone_weight_offset = s->attribs[VS::ARRAY_WEIGHTS].offset; + const size_t bone_weight_stride = s->attribs[VS::ARRAY_WEIGHTS].stride; + + { + PoolVector<float>::Write write = transform_buffer.write(); + float *buffer = write.ptr(); + + PoolVector<uint8_t>::Read vertex_array_read = s->data.read(); + const uint8_t *vertex_data = vertex_array_read.ptr(); + + for (int i = 0; i < s->array_len; i++) { + + // do magic + + size_t bones[4]; + float bone_weight[4]; + + if (s->attribs[VS::ARRAY_BONES].type == GL_UNSIGNED_BYTE) { + // read as byte + const uint8_t *bones_ptr = vertex_data + bones_offset + (i * bones_stride); + bones[0] = bones_ptr[0]; + bones[1] = bones_ptr[1]; + bones[2] = bones_ptr[2]; + bones[3] = bones_ptr[3]; + } else { + // read as short + const uint16_t *bones_ptr = (const uint16_t *)(vertex_data + bones_offset + (i * bones_stride)); + bones[0] = bones_ptr[0]; + bones[1] = bones_ptr[1]; + bones[2] = bones_ptr[2]; + bones[3] = bones_ptr[3]; + } + + if (s->attribs[VS::ARRAY_WEIGHTS].type == GL_FLOAT) { + // read as float + const float *weight_ptr = (const float *)(vertex_data + bone_weight_offset + (i * bone_weight_stride)); + bone_weight[0] = weight_ptr[0]; + bone_weight[1] = weight_ptr[1]; + bone_weight[2] = weight_ptr[2]; + bone_weight[3] = weight_ptr[3]; + } else { + // read as half + const uint16_t *weight_ptr = (const uint16_t *)(vertex_data + bone_weight_offset + (i * bone_weight_stride)); + bone_weight[0] = (weight_ptr[0] / (float)0xFFFF); + bone_weight[1] = (weight_ptr[1] / (float)0xFFFF); + bone_weight[2] = (weight_ptr[2] / (float)0xFFFF); + bone_weight[3] = (weight_ptr[3] / (float)0xFFFF); + } + + size_t offset = i * 12; + + Transform transform; + + Transform bone_transforms[4] = { + storage->skeleton_bone_get_transform(p_element->instance->skeleton, bones[0]), + storage->skeleton_bone_get_transform(p_element->instance->skeleton, bones[1]), + storage->skeleton_bone_get_transform(p_element->instance->skeleton, bones[2]), + storage->skeleton_bone_get_transform(p_element->instance->skeleton, bones[3]), + }; + + transform.origin = + bone_weight[0] * bone_transforms[0].origin + + bone_weight[1] * bone_transforms[1].origin + + bone_weight[2] * bone_transforms[2].origin + + bone_weight[3] * bone_transforms[3].origin; + + transform.basis = + bone_transforms[0].basis * bone_weight[0] + + bone_transforms[1].basis * bone_weight[1] + + bone_transforms[2].basis * bone_weight[2] + + bone_transforms[3].basis * bone_weight[3]; + + float row[3][4] = { + { transform.basis[0][0], transform.basis[0][1], transform.basis[0][2], transform.origin[0] }, + { transform.basis[1][0], transform.basis[1][1], transform.basis[1][2], transform.origin[1] }, + { transform.basis[2][0], transform.basis[2][1], transform.basis[2][2], transform.origin[2] }, + }; + + size_t transform_buffer_offset = i * 12; + + copymem(&buffer[transform_buffer_offset], row, sizeof(row)); + } + } + + storage->_update_skeleton_transform_buffer(transform_buffer, s->array_len * 12); + } break; + + default: { + + } break; + } + } +} + +void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) { + + switch (p_element->instance->base_type) { + + case VS::INSTANCE_MESH: { + + RasterizerStorageGLES2::Surface *s = static_cast<RasterizerStorageGLES2::Surface *>(p_element->geometry); + + // set up + + if (p_element->instance->skeleton.is_valid() && s->attribs[VS::ARRAY_BONES].enabled && s->attribs[VS::ARRAY_WEIGHTS].enabled) { + glBindBuffer(GL_ARRAY_BUFFER, storage->resources.skeleton_transform_buffer); + + glEnableVertexAttribArray(VS::ARRAY_MAX + 0); + glEnableVertexAttribArray(VS::ARRAY_MAX + 1); + glEnableVertexAttribArray(VS::ARRAY_MAX + 2); + + glVertexAttribPointer(VS::ARRAY_MAX + 0, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 12, (const void *)(sizeof(float) * 4 * 0)); + glVertexAttribPointer(VS::ARRAY_MAX + 1, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 12, (const void *)(sizeof(float) * 4 * 1)); + glVertexAttribPointer(VS::ARRAY_MAX + 2, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 12, (const void *)(sizeof(float) * 4 * 2)); + } else { + // just to make sure + glDisableVertexAttribArray(VS::ARRAY_MAX + 0); + glDisableVertexAttribArray(VS::ARRAY_MAX + 1); + glDisableVertexAttribArray(VS::ARRAY_MAX + 2); + + glVertexAttrib4f(VS::ARRAY_MAX + 0, 1, 0, 0, 0); + glVertexAttrib4f(VS::ARRAY_MAX + 1, 0, 1, 0, 0); + glVertexAttrib4f(VS::ARRAY_MAX + 2, 0, 0, 1, 0); + } + + glBindBuffer(GL_ARRAY_BUFFER, s->vertex_id); + + if (s->index_array_len > 0) { + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, s->index_id); + } + + for (int i = 0; i < VS::ARRAY_MAX - 1; i++) { + if (s->attribs[i].enabled) { + glEnableVertexAttribArray(i); + glVertexAttribPointer(s->attribs[i].index, s->attribs[i].size, s->attribs[i].type, s->attribs[i].normalized, s->attribs[i].stride, (uint8_t *)0 + s->attribs[i].offset); + } else { + glDisableVertexAttribArray(i); + } + } + + // drawing + + if (s->index_array_len > 0) { + glDrawElements(gl_primitive[s->primitive], s->index_array_len, (s->array_len >= (1 << 16)) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, 0); + } else { + glDrawArrays(gl_primitive[s->primitive], 0, s->array_len); + } + + // tear down + + for (int i = 0; i < VS::ARRAY_MAX - 1; i++) { + glDisableVertexAttribArray(i); + } + + if (s->index_array_len > 0) { + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } + + if (p_element->instance->skeleton.is_valid() && s->attribs[VS::ARRAY_BONES].enabled && s->attribs[VS::ARRAY_WEIGHTS].enabled) { + glBindBuffer(GL_ARRAY_BUFFER, storage->resources.skeleton_transform_buffer); + + glDisableVertexAttribArray(VS::ARRAY_MAX + 0); + glDisableVertexAttribArray(VS::ARRAY_MAX + 1); + glDisableVertexAttribArray(VS::ARRAY_MAX + 2); + } + + glBindBuffer(GL_ARRAY_BUFFER, 0); + + } break; + + case VS::INSTANCE_MULTIMESH: { + + RasterizerStorageGLES2::MultiMesh *multi_mesh = static_cast<RasterizerStorageGLES2::MultiMesh *>(p_element->owner); + RasterizerStorageGLES2::Surface *s = static_cast<RasterizerStorageGLES2::Surface *>(p_element->geometry); + + int amount = MIN(multi_mesh->size, multi_mesh->visible_instances); + if (amount == -1) { + amount = multi_mesh->size; + } + + if (p_element->instance->skeleton.is_valid() && s->attribs[VS::ARRAY_BONES].enabled && s->attribs[VS::ARRAY_WEIGHTS].enabled) { + glBindBuffer(GL_ARRAY_BUFFER, storage->resources.skeleton_transform_buffer); + + glEnableVertexAttribArray(VS::ARRAY_MAX + 0); + glEnableVertexAttribArray(VS::ARRAY_MAX + 1); + glEnableVertexAttribArray(VS::ARRAY_MAX + 2); + + glVertexAttribPointer(VS::ARRAY_MAX + 0, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 12, (const void *)(sizeof(float) * 4 * 0)); + glVertexAttribPointer(VS::ARRAY_MAX + 1, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 12, (const void *)(sizeof(float) * 4 * 1)); + glVertexAttribPointer(VS::ARRAY_MAX + 2, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 12, (const void *)(sizeof(float) * 4 * 2)); + } else { + // just to make sure + glDisableVertexAttribArray(VS::ARRAY_MAX + 0); + glDisableVertexAttribArray(VS::ARRAY_MAX + 1); + glDisableVertexAttribArray(VS::ARRAY_MAX + 2); + + glVertexAttrib4f(VS::ARRAY_MAX + 0, 1, 0, 0, 0); + glVertexAttrib4f(VS::ARRAY_MAX + 1, 0, 1, 0, 0); + glVertexAttrib4f(VS::ARRAY_MAX + 2, 0, 0, 1, 0); + } + + glBindBuffer(GL_ARRAY_BUFFER, s->vertex_id); + + if (s->index_array_len > 0) { + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, s->index_id); + } + + for (int i = 0; i < VS::ARRAY_MAX - 1; i++) { + if (s->attribs[i].enabled) { + glEnableVertexAttribArray(i); + glVertexAttribPointer(s->attribs[i].index, s->attribs[i].size, s->attribs[i].type, s->attribs[i].normalized, s->attribs[i].stride, (uint8_t *)0 + s->attribs[i].offset); + } else { + glDisableVertexAttribArray(i); + } + } + + glDisableVertexAttribArray(12); // transform 0 + glDisableVertexAttribArray(13); // transform 1 + glDisableVertexAttribArray(14); // transform 2 + glDisableVertexAttribArray(15); // color + glDisableVertexAttribArray(8); // custom data + + glVertexAttrib4f(15, 1, 1, 1, 1); + glVertexAttrib4f(8, 0, 0, 0, 0); + + int stride = multi_mesh->color_floats + multi_mesh->custom_data_floats + multi_mesh->xform_floats; + + int color_ofs = multi_mesh->xform_floats; + int custom_data_ofs = color_ofs + multi_mesh->color_floats; + + // drawing + + for (int i = 0; i < amount; i++) { + float *buffer = &multi_mesh->data.write[i * stride]; + + { + // inline of multimesh_get_transform since it's such a pain + // to get a RID from here... + Transform transform; + + transform.basis.elements[0][0] = buffer[0]; + transform.basis.elements[0][1] = buffer[1]; + transform.basis.elements[0][2] = buffer[2]; + transform.origin.x = buffer[3]; + transform.basis.elements[1][0] = buffer[4]; + transform.basis.elements[1][1] = buffer[5]; + transform.basis.elements[1][2] = buffer[6]; + transform.origin.y = buffer[7]; + transform.basis.elements[2][0] = buffer[8]; + transform.basis.elements[2][1] = buffer[9]; + transform.basis.elements[2][2] = buffer[10]; + transform.origin.z = buffer[11]; + + float row[3][4] = { + { transform.basis[0][0], transform.basis[0][1], transform.basis[0][2], transform.origin[0] }, + { transform.basis[1][0], transform.basis[1][1], transform.basis[1][2], transform.origin[1] }, + { transform.basis[2][0], transform.basis[2][1], transform.basis[2][2], transform.origin[2] }, + }; + + glVertexAttrib4fv(12, row[0]); + glVertexAttrib4fv(13, row[1]); + glVertexAttrib4fv(14, row[2]); + } + + if (multi_mesh->color_floats) { + glVertexAttrib4fv(15, buffer + color_ofs); + } + + if (multi_mesh->custom_data_floats) { + glVertexAttrib4fv(8, buffer + custom_data_ofs); + } + + if (s->index_array_len > 0) { + glDrawElements(gl_primitive[s->primitive], s->index_array_len, (s->array_len >= (1 << 16)) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, 0); + } else { + glDrawArrays(gl_primitive[s->primitive], 0, s->array_len); + } + } + + // tear down + + for (int i = 0; i < VS::ARRAY_MAX - 1; i++) { + glDisableVertexAttribArray(i); + } + + if (s->index_array_len > 0) { + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } + + if (p_element->instance->skeleton.is_valid() && s->attribs[VS::ARRAY_BONES].enabled && s->attribs[VS::ARRAY_WEIGHTS].enabled) { + glBindBuffer(GL_ARRAY_BUFFER, storage->resources.skeleton_transform_buffer); + + glDisableVertexAttribArray(VS::ARRAY_MAX + 0); + glDisableVertexAttribArray(VS::ARRAY_MAX + 1); + glDisableVertexAttribArray(VS::ARRAY_MAX + 2); + } + + glBindBuffer(GL_ARRAY_BUFFER, 0); + } break; + } +} + +void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements, int p_element_count, const RID *p_light_cull_result, int p_light_cull_count, const Transform &p_view_transform, const CameraMatrix &p_projection, RID p_shadow_atlas, Environment *p_env, GLuint p_base_env, float p_shadow_bias, float p_shadow_normal_bias, bool p_reverse_cull, bool p_alpha_pass, bool p_shadow, bool p_directional_add, bool p_directional_shadows) { + + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_shadow_atlas); + + Vector2 screen_pixel_size; + screen_pixel_size.x = 1.0 / storage->frame.current_rt->width; + screen_pixel_size.y = 1.0 / storage->frame.current_rt->height; + + bool use_radiance_map = false; + + for (int i = 0; i < p_element_count; i++) { + RenderList::Element *e = p_elements[i]; + + RasterizerStorageGLES2::Material *material = e->material; + + RasterizerStorageGLES2::Skeleton *skeleton = storage->skeleton_owner.getornull(e->instance->skeleton); + + if (p_base_env) { + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_CUBE_MAP, p_base_env); + use_radiance_map = true; + } + state.scene_shader.set_conditional(SceneShaderGLES2::USE_RADIANCE_MAP, use_radiance_map); + + if (material->shader->spatial.unshaded) { + state.scene_shader.set_conditional(SceneShaderGLES2::USE_RADIANCE_MAP, false); + } else { + state.scene_shader.set_conditional(SceneShaderGLES2::USE_RADIANCE_MAP, use_radiance_map); + } + + // opaque pass + + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_PASS, false); + + _setup_geometry(e, skeleton); + + _setup_material(material, use_radiance_map, p_reverse_cull, false, skeleton ? (skeleton->tex_id != 0) : 0, Size2i(skeleton ? skeleton->size * 3 : 0, 0)); + + if (use_radiance_map) { + state.scene_shader.set_uniform(SceneShaderGLES2::RADIANCE_INVERSE_XFORM, p_view_transform); + } + + if (p_shadow) { + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_BIAS, p_shadow_bias); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_NORMAL_BIAS, p_shadow_normal_bias); + } + + if (p_env) { + state.scene_shader.set_uniform(SceneShaderGLES2::BG_ENERGY, p_env->bg_energy); + state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_SKY_CONTRIBUTION, p_env->ambient_sky_contribution); + state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_COLOR, p_env->ambient_color); + state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_ENERGY, p_env->ambient_energy); + + } else { + state.scene_shader.set_uniform(SceneShaderGLES2::BG_ENERGY, 1.0); + state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_SKY_CONTRIBUTION, 1.0); + state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_COLOR, Color(1.0, 1.0, 1.0, 1.0)); + state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_ENERGY, 1.0); + } + + glEnable(GL_BLEND); + + if (p_alpha_pass || p_directional_add) { + int desired_blend_mode; + if (p_directional_add) { + desired_blend_mode = RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_ADD; + } else { + desired_blend_mode = material->shader->spatial.blend_mode; + } + + switch (desired_blend_mode) { + + case RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_MIX: { + glBlendEquation(GL_FUNC_ADD); + if (storage->frame.current_rt && storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]) { + glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); + } else { + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + } + + } break; + case RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_ADD: { + + glBlendEquation(GL_FUNC_ADD); + glBlendFunc(p_alpha_pass ? GL_SRC_ALPHA : GL_ONE, GL_ONE); + + } break; + case RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_SUB: { + + glBlendEquation(GL_FUNC_REVERSE_SUBTRACT); + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + } break; + case RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_MUL: { + glBlendEquation(GL_FUNC_ADD); + if (storage->frame.current_rt && storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]) { + glBlendFuncSeparate(GL_DST_COLOR, GL_ZERO, GL_DST_ALPHA, GL_ZERO); + } else { + glBlendFuncSeparate(GL_DST_COLOR, GL_ZERO, GL_ZERO, GL_ONE); + } + + } break; + } + } else { + // no blend mode given - assume mix + glBlendEquation(GL_FUNC_ADD); + if (storage->frame.current_rt && storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]) { + glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); + } else { + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + } + } + + state.scene_shader.set_uniform(SceneShaderGLES2::CAMERA_MATRIX, p_view_transform.inverse()); + state.scene_shader.set_uniform(SceneShaderGLES2::CAMERA_INVERSE_MATRIX, p_view_transform); + state.scene_shader.set_uniform(SceneShaderGLES2::PROJECTION_MATRIX, p_projection); + state.scene_shader.set_uniform(SceneShaderGLES2::PROJECTION_INVERSE_MATRIX, p_projection.inverse()); + + state.scene_shader.set_uniform(SceneShaderGLES2::TIME, storage->frame.time[0]); + + state.scene_shader.set_uniform(SceneShaderGLES2::SCREEN_PIXEL_SIZE, screen_pixel_size); + state.scene_shader.set_uniform(SceneShaderGLES2::NORMAL_MULT, 1.0); // TODO mirror? + state.scene_shader.set_uniform(SceneShaderGLES2::WORLD_TRANSFORM, e->instance->transform); + + _render_geometry(e); + + // render lights + + if (material->shader->spatial.unshaded) + continue; + + if (p_shadow) + continue; + + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_PASS, true); + + state.scene_shader.bind(); + + glBlendEquation(GL_FUNC_ADD); + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + + { + bool has_shadow_atlas = shadow_atlas != NULL; + _setup_material(material, false, p_reverse_cull, has_shadow_atlas, skeleton ? (skeleton->tex_id != 0) : 0, Size2i(skeleton ? skeleton->size * 3 : 0, 0)); + + if (has_shadow_atlas) { + glActiveTexture(GL_TEXTURE3); + glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth); + } + + state.scene_shader.set_uniform(SceneShaderGLES2::CAMERA_MATRIX, p_view_transform.inverse()); + state.scene_shader.set_uniform(SceneShaderGLES2::CAMERA_INVERSE_MATRIX, p_view_transform); + state.scene_shader.set_uniform(SceneShaderGLES2::PROJECTION_MATRIX, p_projection); + state.scene_shader.set_uniform(SceneShaderGLES2::PROJECTION_INVERSE_MATRIX, p_projection.inverse()); + + state.scene_shader.set_uniform(SceneShaderGLES2::TIME, storage->frame.time[0]); + + state.scene_shader.set_uniform(SceneShaderGLES2::SCREEN_PIXEL_SIZE, screen_pixel_size); + state.scene_shader.set_uniform(SceneShaderGLES2::NORMAL_MULT, 1.0); // TODO mirror? + state.scene_shader.set_uniform(SceneShaderGLES2::WORLD_TRANSFORM, e->instance->transform); + } + + for (int j = 0; j < e->instance->light_instances.size(); j++) { + RID light_rid = e->instance->light_instances[j]; + LightInstance *light = light_instance_owner.get(light_rid); + + switch (light->light_ptr->type) { + case VS::LIGHT_DIRECTIONAL: { + continue; + } break; + + case VS::LIGHT_OMNI: { + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_TYPE, (int)1); + + Vector3 position = p_view_transform.inverse().xform(light->transform.origin); + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_POSITION, position); + + float range = light->light_ptr->param[VS::LIGHT_PARAM_RANGE]; + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_RANGE, range); + + Color attenuation = Color(0.0, 0.0, 0.0, 0.0); + attenuation.a = light->light_ptr->param[VS::LIGHT_PARAM_ATTENUATION]; + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_ATTENUATION, attenuation); + + if (light->light_ptr->shadow && shadow_atlas->shadow_owners.has(light->self)) { + + uint32_t key = shadow_atlas->shadow_owners[light->self]; + + uint32_t quadrant = (key >> ShadowAtlas::QUADRANT_SHIFT) & 0x03; + uint32_t shadow = key & ShadowAtlas::SHADOW_INDEX_MASK; + + ERR_CONTINUE(shadow >= (uint32_t)shadow_atlas->quadrants[quadrant].shadows.size()); + + uint32_t atlas_size = shadow_atlas->size; + uint32_t quadrant_size = atlas_size >> 1; + + uint32_t x = (quadrant & 1) * quadrant_size; + uint32_t y = (quadrant >> 1) * quadrant_size; + + uint32_t shadow_size = (quadrant_size / shadow_atlas->quadrants[quadrant].subdivision); + x += (shadow % shadow_atlas->quadrants[quadrant].subdivision) * shadow_size; + y += (shadow / shadow_atlas->quadrants[quadrant].subdivision) * shadow_size; + + uint32_t width = shadow_size; + uint32_t height = shadow_size; + + if (light->light_ptr->omni_shadow_detail == VS::LIGHT_OMNI_SHADOW_DETAIL_HORIZONTAL) { + height /= 2; + } else { + width /= 2; + } + + Transform proj = (p_view_transform.inverse() * light->transform).inverse(); + + Color light_clamp; + light_clamp[0] = float(x) / atlas_size; + light_clamp[1] = float(y) / atlas_size; + light_clamp[2] = float(width) / atlas_size; + light_clamp[3] = float(height) / atlas_size; + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SHADOW_MATRIX, proj); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_CLAMP, light_clamp); + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_HAS_SHADOW, 1.0); + } else { + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_HAS_SHADOW, 0.0); + } + } break; + + case VS::LIGHT_SPOT: { + Vector3 position = p_view_transform.inverse().xform(light->transform.origin); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_TYPE, (int)2); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_POSITION, position); + + Vector3 direction = p_view_transform.inverse().basis.xform(light->transform.basis.xform(Vector3(0, 0, -1))).normalized(); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_DIRECTION, direction); + Color attenuation = Color(0.0, 0.0, 0.0, 0.0); + attenuation.a = light->light_ptr->param[VS::LIGHT_PARAM_ATTENUATION]; + float range = light->light_ptr->param[VS::LIGHT_PARAM_RANGE]; + float spot_attenuation = light->light_ptr->param[VS::LIGHT_PARAM_SPOT_ATTENUATION]; + float angle = light->light_ptr->param[VS::LIGHT_PARAM_SPOT_ANGLE]; + angle = Math::cos(Math::deg2rad(angle)); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_ATTENUATION, attenuation); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SPOT_ATTENUATION, spot_attenuation); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SPOT_RANGE, spot_attenuation); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SPOT_ANGLE, angle); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_RANGE, range); + + if (light->light_ptr->shadow && shadow_atlas && shadow_atlas->shadow_owners.has(light->self)) { + uint32_t key = shadow_atlas->shadow_owners[light->self]; + + uint32_t quadrant = (key >> ShadowAtlas::QUADRANT_SHIFT) & 0x03; + uint32_t shadow = key & ShadowAtlas::SHADOW_INDEX_MASK; + + ERR_CONTINUE(shadow >= (uint32_t)shadow_atlas->quadrants[quadrant].shadows.size()); + + uint32_t atlas_size = shadow_atlas->size; + uint32_t quadrant_size = atlas_size >> 1; + + uint32_t x = (quadrant & 1) * quadrant_size; + uint32_t y = (quadrant >> 1) * quadrant_size; + + uint32_t shadow_size = (quadrant_size / shadow_atlas->quadrants[quadrant].subdivision); + x += (shadow % shadow_atlas->quadrants[quadrant].subdivision) * shadow_size; + y += (shadow / shadow_atlas->quadrants[quadrant].subdivision) * shadow_size; + + uint32_t width = shadow_size; + uint32_t height = shadow_size; + + Rect2 rect(float(x) / atlas_size, float(y) / atlas_size, float(width) / atlas_size, float(height) / atlas_size); + + Color light_clamp; + light_clamp[0] = rect.position.x; + light_clamp[1] = rect.position.y; + light_clamp[2] = rect.size.x; + light_clamp[3] = rect.size.y; + + Transform modelview = (p_view_transform.inverse() * light->transform).inverse(); + + CameraMatrix bias; + bias.set_light_bias(); + + CameraMatrix rectm; + rectm.set_light_atlas_rect(rect); + + CameraMatrix shadow_matrix = rectm * bias * light->shadow_transform[0].camera * modelview; + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_HAS_SHADOW, 1.0); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SHADOW_MATRIX, shadow_matrix); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_CLAMP, light_clamp); + + } else { + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_HAS_SHADOW, 0.0); + } + + } break; + + default: { + print_line("wat."); + } break; + } + + float energy = light->light_ptr->param[VS::LIGHT_PARAM_ENERGY]; + float specular = light->light_ptr->param[VS::LIGHT_PARAM_SPECULAR]; + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_ENERGY, energy); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_COLOR, light->light_ptr->color.to_linear()); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SPECULAR, specular); + + _render_geometry(e); + } + + for (int j = 0; j < p_light_cull_count; j++) { + RID light_rid = p_light_cull_result[j]; + + LightInstance *light = light_instance_owner.getornull(light_rid); + + RasterizerStorageGLES2::Light *light_ptr = light->light_ptr; + + switch (light_ptr->type) { + case VS::LIGHT_DIRECTIONAL: { + + switch (light_ptr->directional_shadow_mode) { + case VS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL: { + } break; + case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS: { + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM2, true); + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM_BLEND, light_ptr->directional_blend_splits); + } break; + + case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS: { + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM4, true); + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM_BLEND, light_ptr->directional_blend_splits); + } break; + default: + break; + } + + { + _setup_material(material, false, p_reverse_cull, false, skeleton ? (skeleton->tex_id != 0) : 0, Size2i(skeleton ? skeleton->size * 3 : 0, 0)); + + if (directional_shadow.depth) { + glActiveTexture(GL_TEXTURE3); + glBindTexture(GL_TEXTURE_2D, directional_shadow.depth); + } + + state.scene_shader.set_uniform(SceneShaderGLES2::CAMERA_MATRIX, p_view_transform.inverse()); + state.scene_shader.set_uniform(SceneShaderGLES2::CAMERA_INVERSE_MATRIX, p_view_transform); + state.scene_shader.set_uniform(SceneShaderGLES2::PROJECTION_MATRIX, p_projection); + state.scene_shader.set_uniform(SceneShaderGLES2::PROJECTION_INVERSE_MATRIX, p_projection.inverse()); + + state.scene_shader.set_uniform(SceneShaderGLES2::TIME, storage->frame.time[0]); + + state.scene_shader.set_uniform(SceneShaderGLES2::SCREEN_PIXEL_SIZE, screen_pixel_size); + state.scene_shader.set_uniform(SceneShaderGLES2::NORMAL_MULT, 1.0); // TODO mirror? + state.scene_shader.set_uniform(SceneShaderGLES2::WORLD_TRANSFORM, e->instance->transform); + } + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_TYPE, (int)0); + Vector3 direction = p_view_transform.inverse().basis.xform(light->transform.basis.xform(Vector3(0, 0, -1))).normalized(); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_DIRECTION, direction); + + } break; + + default: { + continue; + } break; + } + + float energy = light_ptr->param[VS::LIGHT_PARAM_ENERGY]; + float specular = light_ptr->param[VS::LIGHT_PARAM_SPECULAR]; + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_ENERGY, energy); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SPECULAR, specular); + + float sign = light_ptr->negative ? -1 : 1; + + Color linear_col = light_ptr->color.to_linear(); + Color color; + for (int c = 0; c < 3; c++) + color[c] = linear_col[c] * sign * energy * Math_PI; + + color[3] = 0; + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_COLOR, color); + + CameraMatrix matrices[4]; + + if (light_ptr->shadow && directional_shadow.depth) { + + int shadow_count = 0; + Color split_offsets; + + switch (light_ptr->directional_shadow_mode) { + case VS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL: { + shadow_count = 1; + } break; + + case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS: { + shadow_count = 2; + } break; + + case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS: { + shadow_count = 4; + } break; + } + + for (int k = 0; k < shadow_count; k++) { + + uint32_t x = light->directional_rect.position.x; + uint32_t y = light->directional_rect.position.y; + uint32_t width = light->directional_rect.size.x; + uint32_t height = light->directional_rect.size.y; + + if (light_ptr->directional_shadow_mode == VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS) { + + width /= 2; + height /= 2; + + if (k == 0) { + + } else if (k == 1) { + x += width; + } else if (k == 2) { + y += height; + } else if (k == 3) { + x += width; + y += height; + } + + } else if (light_ptr->directional_shadow_mode == VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS) { + + height /= 2; + + if (k == 0) { + + } else { + y += height; + } + } + + split_offsets[k] = light->shadow_transform[k].split; + + Transform modelview = (p_view_transform * light->shadow_transform[k].transform).inverse(); + + CameraMatrix bias; + bias.set_light_bias(); + CameraMatrix rectm; + Rect2 atlas_rect = Rect2(float(x) / directional_shadow.size, float(y) / directional_shadow.size, float(width) / directional_shadow.size, float(height) / directional_shadow.size); + rectm.set_light_atlas_rect(atlas_rect); + + CameraMatrix shadow_mtx = rectm * bias * light->shadow_transform[k].camera * modelview; + matrices[k] = shadow_mtx.inverse(); + + Color light_clamp; + light_clamp[0] = atlas_rect.position.x; + light_clamp[1] = atlas_rect.position.y; + light_clamp[2] = atlas_rect.size.x; + light_clamp[3] = atlas_rect.size.y; + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_HAS_SHADOW, 1.0); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_CLAMP, light_clamp); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SPLIT_OFFSETS, split_offsets); + } + + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SHADOW_MATRIX1, matrices[0]); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SHADOW_MATRIX2, matrices[1]); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SHADOW_MATRIX3, matrices[2]); + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_SHADOW_MATRIX4, matrices[3]); + } else { + state.scene_shader.set_uniform(SceneShaderGLES2::LIGHT_HAS_SHADOW, 0.0); + } + + _render_geometry(e); + } + + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_PASS, false); + } + + state.scene_shader.set_conditional(SceneShaderGLES2::USE_RADIANCE_MAP, false); + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM4, false); + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM2, false); + state.scene_shader.set_conditional(SceneShaderGLES2::LIGHT_USE_PSSM_BLEND, false); +} + +void RasterizerSceneGLES2::_draw_sky(RasterizerStorageGLES2::Sky *p_sky, const CameraMatrix &p_projection, const Transform &p_transform, bool p_vflip, float p_custom_fov, float p_energy) { + ERR_FAIL_COND(!p_sky); + + RasterizerStorageGLES2::Texture *tex = storage->texture_owner.getornull(p_sky->panorama); + ERR_FAIL_COND(!tex); + + glActiveTexture(GL_TEXTURE0); + glBindTexture(tex->target, tex->tex_id); + + glDepthMask(GL_TRUE); + glEnable(GL_DEPTH_TEST); + glDisable(GL_CULL_FACE); + glDisable(GL_BLEND); + glDepthFunc(GL_LEQUAL); + glColorMask(1, 1, 1, 1); + + // Camera + CameraMatrix camera; + + if (p_custom_fov) { + + float near_plane = p_projection.get_z_near(); + float far_plane = p_projection.get_z_far(); + float aspect = p_projection.get_aspect(); + + camera.set_perspective(p_custom_fov, aspect, near_plane, far_plane); + } else { + camera = p_projection; + } + + float flip_sign = p_vflip ? -1 : 1; + + // If matrix[2][0] or matrix[2][1] we're dealing with an asymmetrical projection matrix. This is the case for stereoscopic rendering (i.e. VR). + // To ensure the image rendered is perspective correct we need to move some logic into the shader. For this the USE_ASYM_PANO option is introduced. + // It also means the uv coordinates are ignored in this mode and we don't need our loop. + bool asymmetrical = ((camera.matrix[2][0] != 0.0) || (camera.matrix[2][1] != 0.0)); + + Vector3 vertices[8] = { + Vector3(-1, -1 * flip_sign, 1), + Vector3(0, 1, 0), + Vector3(1, -1 * flip_sign, 1), + Vector3(1, 1, 0), + Vector3(1, 1 * flip_sign, 1), + Vector3(1, 0, 0), + Vector3(-1, 1 * flip_sign, 1), + Vector3(0, 0, 0), + }; + + if (!asymmetrical) { + float vw, vh, zn; + camera.get_viewport_size(vw, vh); + zn = p_projection.get_z_near(); + + for (int i = 0; i < 4; i++) { + Vector3 uv = vertices[i * 2 + 1]; + uv.x = (uv.x * 2.0 - 1.0) * vw; + uv.y = -(uv.y * 2.0 - 1.0) * vh; + uv.z = -zn; + vertices[i * 2 + 1] = p_transform.basis.xform(uv).normalized(); + vertices[i * 2 + 1].z = -vertices[i * 2 + 1].z; + } + } + + glBindBuffer(GL_ARRAY_BUFFER, state.sky_verts); + glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(Vector3) * 8, vertices); + + // bind sky vertex array.... + glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, 0); + glVertexAttribPointer(VS::ARRAY_TEX_UV, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, ((uint8_t *)NULL) + sizeof(Vector3)); + glEnableVertexAttribArray(VS::ARRAY_VERTEX); + glEnableVertexAttribArray(VS::ARRAY_TEX_UV); + + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_MULTIPLIER, true); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_CUBEMAP, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_PANORAMA, true); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_COPY_SECTION, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_CUSTOM_ALPHA, false); + storage->shaders.copy.bind(); + storage->shaders.copy.set_uniform(CopyShaderGLES2::MULTIPLIER, p_energy); + + glDrawArrays(GL_TRIANGLE_FAN, 0, 4); + + glDisableVertexAttribArray(VS::ARRAY_VERTEX); + glDisableVertexAttribArray(VS::ARRAY_TEX_UV); + glBindBuffer(GL_ARRAY_BUFFER, 0); + + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_MULTIPLIER, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_CUBEMAP, false); +} + void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, RID *p_light_cull_result, int p_light_cull_count, RID *p_reflection_probe_cull_result, int p_reflection_probe_cull_count, RID p_environment, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass) { + + glEnable(GL_BLEND); + + GLuint current_fb = storage->frame.current_rt->fbo; + Environment *env = environment_owner.getornull(p_environment); + + // render list stuff + + render_list.clear(); + _fill_render_list(p_cull_result, p_cull_count, false, false); + + // other stuff + + glBindFramebuffer(GL_FRAMEBUFFER, current_fb); + + glDepthFunc(GL_LEQUAL); + glDepthMask(GL_TRUE); + glClearDepth(1.0f); + glEnable(GL_DEPTH_TEST); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + storage->frame.clear_request = false; + + glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1); + + glBlendEquation(GL_FUNC_ADD); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + // render sky + RasterizerStorageGLES2::Sky *sky = NULL; + GLuint env_radiance_tex = 0; + if (env) { + switch (env->bg_mode) { + + case VS::ENV_BG_COLOR_SKY: + case VS::ENV_BG_SKY: { + sky = storage->sky_owner.getornull(env->sky); + + if (sky) { + env_radiance_tex = sky->radiance; + } + } break; + + default: { + print_line("uhm"); + } break; + } + } + + if (env && env->bg_mode == VS::ENV_BG_SKY && (!storage->frame.current_rt || !storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT])) { + + if (sky && sky->panorama.is_valid()) { + _draw_sky(sky, p_cam_projection, p_cam_transform, false, env->sky_custom_fov, env->bg_energy); + } + } + + // render opaque things first + render_list.sort_by_key(false); + _render_render_list(render_list.elements, render_list.element_count, p_light_cull_result, p_light_cull_count, p_cam_transform, p_cam_projection, p_shadow_atlas, env, env_radiance_tex, 0.0, 0.0, false, false, false, false, false); + + // alpha pass + + glBlendEquation(GL_FUNC_ADD); + glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); + + render_list.sort_by_key(true); + _render_render_list(&render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, p_light_cull_result, p_light_cull_count, p_cam_transform, p_cam_projection, p_shadow_atlas, env, env_radiance_tex, 0.0, 0.0, false, true, false, false, false); + + glDepthMask(GL_FALSE); + glDisable(GL_DEPTH_TEST); + + // #define GLES2_SHADOW_ATLAS_DEBUG_VIEW + +#ifdef GLES2_SHADOW_ATLAS_DEBUG_VIEW + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_shadow_atlas); + if (shadow_atlas) { + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth); + + glViewport(0, 0, storage->frame.current_rt->width / 4, storage->frame.current_rt->height / 4); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_CUBEMAP, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_COPY_SECTION, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_CUSTOM_ALPHA, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_MULTIPLIER, false); + storage->shaders.copy.set_conditional(CopyShaderGLES2::USE_PANORAMA, false); + storage->shaders.copy.bind(); + + storage->_copy_screen(); + } +#endif } void RasterizerSceneGLES2::render_shadow(RID p_light, RID p_shadow_atlas, int p_pass, InstanceBase **p_cull_result, int p_cull_count) { + + LightInstance *light_instance = light_instance_owner.getornull(p_light); + ERR_FAIL_COND(!light_instance); + + RasterizerStorageGLES2::Light *light = light_instance->light_ptr; + ERR_FAIL_COND(!light); + + uint32_t x; + uint32_t y; + uint32_t width; + uint32_t height; + uint32_t vp_height; + + float zfar = 0; + bool flip_facing = false; + int custom_vp_size = 0; + + GLuint fbo = 0; + + int current_cubemap = -1; + float bias = 0; + float normal_bias = 0; + + CameraMatrix light_projection; + Transform light_transform; + + // TODO directional light + + if (light->type == VS::LIGHT_DIRECTIONAL) { + // set pssm stuff + + // TODO set this only when changed + + light_instance->light_directional_index = directional_shadow.current_light; + light_instance->last_scene_shadow_pass = scene_pass; + + directional_shadow.current_light++; + + if (directional_shadow.light_count == 1) { + light_instance->directional_rect = Rect2(0, 0, directional_shadow.size, directional_shadow.size); + } else if (directional_shadow.light_count == 2) { + light_instance->directional_rect = Rect2(0, 0, directional_shadow.size, directional_shadow.size / 2); + if (light_instance->light_directional_index == 1) { + light_instance->directional_rect.position.x += light_instance->directional_rect.size.x; + } + } else { //3 and 4 + light_instance->directional_rect = Rect2(0, 0, directional_shadow.size / 2, directional_shadow.size / 2); + if (light_instance->light_directional_index & 1) { + light_instance->directional_rect.position.x += light_instance->directional_rect.size.x; + } + if (light_instance->light_directional_index / 2) { + light_instance->directional_rect.position.y += light_instance->directional_rect.size.y; + } + } + + light_projection = light_instance->shadow_transform[p_pass].camera; + light_transform = light_instance->shadow_transform[p_pass].transform; + + x = light_instance->directional_rect.position.x; + y = light_instance->directional_rect.position.y; + width = light_instance->directional_rect.size.width; + height = light_instance->directional_rect.size.height; + + if (light->directional_shadow_mode == VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS) { + + width /= 2; + height /= 2; + + if (p_pass == 0) { + + } else if (p_pass == 1) { + x += width; + } else if (p_pass == 2) { + y += height; + } else if (p_pass == 3) { + x += width; + y += height; + } + + } else if (light->directional_shadow_mode == VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS) { + + height /= 2; + + if (p_pass == 0) { + + } else { + y += height; + } + } + + float bias_mult = Math::lerp(1.0f, light_instance->shadow_transform[p_pass].bias_scale, light->param[VS::LIGHT_PARAM_SHADOW_BIAS_SPLIT_SCALE]); + zfar = light->param[VS::LIGHT_PARAM_RANGE]; + bias = light->param[VS::LIGHT_PARAM_SHADOW_BIAS] * bias_mult; + normal_bias = light->param[VS::LIGHT_PARAM_SHADOW_NORMAL_BIAS] * bias_mult; + + fbo = directional_shadow.fbo; + vp_height = directional_shadow.size; + } else { + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_shadow_atlas); + ERR_FAIL_COND(!shadow_atlas); + ERR_FAIL_COND(!shadow_atlas->shadow_owners.has(p_light)); + + fbo = shadow_atlas->fbo; + vp_height = shadow_atlas->size; + + uint32_t key = shadow_atlas->shadow_owners[p_light]; + + uint32_t quadrant = (key >> ShadowAtlas::QUADRANT_SHIFT) & 0x03; + uint32_t shadow = key & ShadowAtlas::SHADOW_INDEX_MASK; + + ERR_FAIL_INDEX((int)shadow, shadow_atlas->quadrants[quadrant].shadows.size()); + + uint32_t quadrant_size = shadow_atlas->size >> 1; + + x = (quadrant & 1) * quadrant_size; + y = (quadrant >> 1) * quadrant_size; + + uint32_t shadow_size = (quadrant_size / shadow_atlas->quadrants[quadrant].subdivision); + x += (shadow % shadow_atlas->quadrants[quadrant].subdivision) * shadow_size; + y += (shadow / shadow_atlas->quadrants[quadrant].subdivision) * shadow_size; + + width = shadow_size; + height = shadow_size; + + if (light->type == VS::LIGHT_OMNI) { + // cubemap only + if (light->omni_shadow_mode == VS::LIGHT_OMNI_SHADOW_CUBE) { + int cubemap_index = shadow_cubemaps.size() - 1; + + // find an appropriate cubemap to render to + for (int i = shadow_cubemaps.size() - 1; i >= 0; i--) { + if (shadow_cubemaps[i].size > shadow_size * 2) { + break; + } + + cubemap_index = i; + } + + fbo = shadow_cubemaps[cubemap_index].fbo[p_pass]; + light_projection = light_instance->shadow_transform[0].camera; + light_transform = light_instance->shadow_transform[0].transform; + + custom_vp_size = shadow_cubemaps[cubemap_index].size; + zfar = light->param[VS::LIGHT_PARAM_RANGE]; + + current_cubemap = cubemap_index; + } + } else { + light_projection = light_instance->shadow_transform[0].camera; + light_transform = light_instance->shadow_transform[0].transform; + + flip_facing = false; + zfar = light->param[VS::LIGHT_PARAM_RANGE]; + bias = light->param[VS::LIGHT_PARAM_SHADOW_BIAS]; + normal_bias = light->param[VS::LIGHT_PARAM_SHADOW_NORMAL_BIAS]; + } + } + + render_list.clear(); + + _fill_render_list(p_cull_result, p_cull_count, true, true); + + render_list.sort_by_depth(false); + + glDisable(GL_BLEND); + glDisable(GL_DITHER); + glEnable(GL_DEPTH_TEST); + + glBindFramebuffer(GL_FRAMEBUFFER, fbo); + + glDepthMask(GL_TRUE); + glColorMask(0, 0, 0, 0); + + if (custom_vp_size) { + glViewport(0, 0, custom_vp_size, custom_vp_size); + glScissor(0, 0, custom_vp_size, custom_vp_size); + } else { + glViewport(x, y, width, height); + glScissor(x, y, width, height); + } + + glEnable(GL_SCISSOR_TEST); + glClearDepth(1.0f); + glClear(GL_DEPTH_BUFFER_BIT); + glDisable(GL_SCISSOR_TEST); + + state.scene_shader.set_conditional(SceneShaderGLES2::RENDER_DEPTH, true); + + _render_render_list(render_list.elements, render_list.element_count, NULL, 0, light_transform, light_projection, RID(), NULL, 0, bias, normal_bias, false, false, true, false, false); + + state.scene_shader.set_conditional(SceneShaderGLES2::RENDER_DEPTH, false); + + // convert cubemap to dual paraboloid if needed + if (light->type == VS::LIGHT_OMNI && light->omni_shadow_mode == VS::LIGHT_OMNI_SHADOW_CUBE && p_pass == 5) { + ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_shadow_atlas); + + glBindFramebuffer(GL_FRAMEBUFFER, shadow_atlas->fbo); + state.cube_to_dp_shader.bind(); + + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_CUBE_MAP, shadow_cubemaps[current_cubemap].cubemap); + + glDisable(GL_CULL_FACE); + + for (int i = 0; i < 2; i++) { + state.cube_to_dp_shader.set_uniform(CubeToDpShaderGLES2::Z_FLIP, i == 1); + state.cube_to_dp_shader.set_uniform(CubeToDpShaderGLES2::Z_NEAR, light_projection.get_z_near()); + state.cube_to_dp_shader.set_uniform(CubeToDpShaderGLES2::Z_FAR, light_projection.get_z_far()); + state.cube_to_dp_shader.set_uniform(CubeToDpShaderGLES2::BIAS, light->param[VS::LIGHT_PARAM_SHADOW_BIAS]); + + uint32_t local_width = width; + uint32_t local_height = height; + uint32_t local_x = x; + uint32_t local_y = y; + + if (light->omni_shadow_detail == VS::LIGHT_OMNI_SHADOW_DETAIL_HORIZONTAL) { + local_height /= 2; + local_y += i * local_height; + } else { + local_width /= 2; + local_x += i * local_width; + } + + glViewport(local_x, local_y, local_width, local_height); + glScissor(local_x, local_y, local_width, local_height); + + glEnable(GL_SCISSOR_TEST); + + glClearDepth(1.0f); + + glClear(GL_DEPTH_BUFFER_BIT); + glDisable(GL_SCISSOR_TEST); + + glDisable(GL_BLEND); + + storage->_copy_screen(); + } + } + + glViewport(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height); } void RasterizerSceneGLES2::set_scene_pass(uint64_t p_pass) { + scene_pass = p_pass; } bool RasterizerSceneGLES2::free(RID p_rid) { @@ -223,6 +2202,100 @@ void RasterizerSceneGLES2::set_debug_draw_mode(VS::ViewportDebugDraw p_debug_dra } void RasterizerSceneGLES2::initialize() { + state.scene_shader.init(); + state.cube_to_dp_shader.init(); + + render_list.init(); + + shadow_atlas_realloc_tolerance_msec = 500; + + { + //default material and shader + + default_shader = storage->shader_create(); + storage->shader_set_code(default_shader, "shader_type spatial;\n"); + default_material = storage->material_create(); + storage->material_set_shader(default_material, default_shader); + + default_shader_twosided = storage->shader_create(); + default_material_twosided = storage->material_create(); + storage->shader_set_code(default_shader_twosided, "shader_type spatial; render_mode cull_disabled;\n"); + storage->material_set_shader(default_material_twosided, default_shader_twosided); + } + + { + glGenBuffers(1, &state.sky_verts); + glBindBuffer(GL_ARRAY_BUFFER, state.sky_verts); + glBufferData(GL_ARRAY_BUFFER, sizeof(Vector3) * 8, NULL, GL_DYNAMIC_DRAW); + glBindBuffer(GL_ARRAY_BUFFER, 0); + } + + // cubemaps for shadows + { + int max_shadow_cubemap_sampler_size = 512; + + int cube_size = max_shadow_cubemap_sampler_size; + + glActiveTexture(GL_TEXTURE0); + + while (cube_size >= 32) { + + ShadowCubeMap cube; + + cube.size = cube_size; + + glGenTextures(1, &cube.cubemap); + glBindTexture(GL_TEXTURE_CUBE_MAP, cube.cubemap); + + for (int i = 0; i < 6; i++) { + glTexImage2D(_cube_side_enum[i], 0, GL_DEPTH_COMPONENT16, cube_size, cube_size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NULL); + } + + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + glGenFramebuffers(6, cube.fbo); + for (int i = 0; i < 6; i++) { + + glBindFramebuffer(GL_FRAMEBUFFER, cube.fbo[i]); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, _cube_side_enum[i], cube.cubemap, 0); + } + + shadow_cubemaps.push_back(cube); + + cube_size >>= 1; + } + } + + { + // directional shadows + + directional_shadow.light_count = 0; + directional_shadow.size = next_power_of_2(GLOBAL_GET("rendering/quality/directional_shadow/size")); + + glGenFramebuffers(1, &directional_shadow.fbo); + glBindFramebuffer(GL_FRAMEBUFFER, directional_shadow.fbo); + + glGenTextures(1, &directional_shadow.depth); + glBindTexture(GL_TEXTURE_2D, directional_shadow.depth); + + glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT16, directional_shadow.size, directional_shadow.size, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, directional_shadow.depth, 0); + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) { + ERR_PRINT("Directional shadow framebuffer status invalid"); + } + } } void RasterizerSceneGLES2::iteration() { |