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Diffstat (limited to 'servers/rendering/renderer_rd/environment/gi.h')
| -rw-r--r-- | servers/rendering/renderer_rd/environment/gi.h | 800 |
1 files changed, 800 insertions, 0 deletions
diff --git a/servers/rendering/renderer_rd/environment/gi.h b/servers/rendering/renderer_rd/environment/gi.h new file mode 100644 index 0000000000..b6ecfe42ea --- /dev/null +++ b/servers/rendering/renderer_rd/environment/gi.h @@ -0,0 +1,800 @@ +/*************************************************************************/ +/* gi.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef GI_RD_H +#define GI_RD_H + +#include "core/templates/local_vector.h" +#include "core/templates/rid_owner.h" +#include "servers/rendering/environment/renderer_gi.h" +#include "servers/rendering/renderer_compositor.h" +#include "servers/rendering/renderer_rd/renderer_scene_environment_rd.h" +#include "servers/rendering/renderer_rd/renderer_scene_sky_rd.h" +#include "servers/rendering/renderer_rd/renderer_storage_rd.h" +#include "servers/rendering/renderer_rd/shaders/environment/gi.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/sdfgi_debug.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/sdfgi_debug_probes.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/sdfgi_direct_light.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/sdfgi_integrate.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/sdfgi_preprocess.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/voxel_gi.glsl.gen.h" +#include "servers/rendering/renderer_rd/shaders/environment/voxel_gi_debug.glsl.gen.h" +#include "servers/rendering/renderer_scene_render.h" +#include "servers/rendering/renderer_storage.h" +#include "servers/rendering/rendering_device.h" + +// Forward declare RenderDataRD and RendererSceneRenderRD so we can pass it into some of our methods, these classes are pretty tightly bound +struct RenderDataRD; +class RendererSceneRenderRD; + +namespace RendererRD { + +class GI : public RendererGI { +public: + /* VOXEL GI STORAGE */ + + struct VoxelGI { + RID octree_buffer; + RID data_buffer; + RID sdf_texture; + + uint32_t octree_buffer_size = 0; + uint32_t data_buffer_size = 0; + + Vector<int> level_counts; + + int cell_count = 0; + + Transform3D to_cell_xform; + AABB bounds; + Vector3i octree_size; + + float dynamic_range = 2.0; + float energy = 1.0; + float bias = 1.4; + float normal_bias = 0.0; + float propagation = 0.7; + bool interior = false; + bool use_two_bounces = false; + + float anisotropy_strength = 0.5; + + uint32_t version = 1; + uint32_t data_version = 1; + + RendererStorage::Dependency dependency; + }; + +private: + RendererStorageRD *storage = nullptr; + static GI *singleton; + + /* VOXEL GI STORAGE */ + + mutable RID_Owner<VoxelGI, true> voxel_gi_owner; + + /* VOXEL_GI INSTANCE */ + + struct VoxelGILight { + uint32_t type; + float energy; + float radius; + float attenuation; + + float color[3]; + float cos_spot_angle; + + float position[3]; + float inv_spot_attenuation; + + float direction[3]; + uint32_t has_shadow; + }; + + struct VoxelGIPushConstant { + int32_t limits[3]; + uint32_t stack_size; + + float emission_scale; + float propagation; + float dynamic_range; + uint32_t light_count; + + uint32_t cell_offset; + uint32_t cell_count; + float aniso_strength; + uint32_t pad; + }; + + struct VoxelGIDynamicPushConstant { + int32_t limits[3]; + uint32_t light_count; + int32_t x_dir[3]; + float z_base; + int32_t y_dir[3]; + float z_sign; + int32_t z_dir[3]; + float pos_multiplier; + uint32_t rect_pos[2]; + uint32_t rect_size[2]; + uint32_t prev_rect_ofs[2]; + uint32_t prev_rect_size[2]; + uint32_t flip_x; + uint32_t flip_y; + float dynamic_range; + uint32_t on_mipmap; + float propagation; + float pad[3]; + }; + + VoxelGILight *voxel_gi_lights = nullptr; + uint32_t voxel_gi_max_lights = 32; + RID voxel_gi_lights_uniform; + + enum { + VOXEL_GI_SHADER_VERSION_COMPUTE_LIGHT, + VOXEL_GI_SHADER_VERSION_COMPUTE_SECOND_BOUNCE, + VOXEL_GI_SHADER_VERSION_COMPUTE_MIPMAP, + VOXEL_GI_SHADER_VERSION_WRITE_TEXTURE, + VOXEL_GI_SHADER_VERSION_DYNAMIC_OBJECT_LIGHTING, + VOXEL_GI_SHADER_VERSION_DYNAMIC_SHRINK_WRITE, + VOXEL_GI_SHADER_VERSION_DYNAMIC_SHRINK_PLOT, + VOXEL_GI_SHADER_VERSION_DYNAMIC_SHRINK_WRITE_PLOT, + VOXEL_GI_SHADER_VERSION_MAX + }; + + VoxelGiShaderRD voxel_gi_shader; + RID voxel_gi_lighting_shader_version; + RID voxel_gi_lighting_shader_version_shaders[VOXEL_GI_SHADER_VERSION_MAX]; + RID voxel_gi_lighting_shader_version_pipelines[VOXEL_GI_SHADER_VERSION_MAX]; + + enum { + VOXEL_GI_DEBUG_COLOR, + VOXEL_GI_DEBUG_LIGHT, + VOXEL_GI_DEBUG_EMISSION, + VOXEL_GI_DEBUG_LIGHT_FULL, + VOXEL_GI_DEBUG_MAX + }; + + struct VoxelGIDebugPushConstant { + float projection[16]; + uint32_t cell_offset; + float dynamic_range; + float alpha; + uint32_t level; + int32_t bounds[3]; + uint32_t pad; + }; + + VoxelGiDebugShaderRD voxel_gi_debug_shader; + RID voxel_gi_debug_shader_version; + RID voxel_gi_debug_shader_version_shaders[VOXEL_GI_DEBUG_MAX]; + PipelineCacheRD voxel_gi_debug_shader_version_pipelines[VOXEL_GI_DEBUG_MAX]; + RID voxel_gi_debug_uniform_set; + + /* SDFGI */ + + struct SDFGIShader { + enum SDFGIPreprocessShaderVersion { + PRE_PROCESS_SCROLL, + PRE_PROCESS_SCROLL_OCCLUSION, + PRE_PROCESS_JUMP_FLOOD_INITIALIZE, + PRE_PROCESS_JUMP_FLOOD_INITIALIZE_HALF, + PRE_PROCESS_JUMP_FLOOD, + PRE_PROCESS_JUMP_FLOOD_OPTIMIZED, + PRE_PROCESS_JUMP_FLOOD_UPSCALE, + PRE_PROCESS_OCCLUSION, + PRE_PROCESS_STORE, + PRE_PROCESS_MAX + }; + + struct PreprocessPushConstant { + int32_t scroll[3]; + int32_t grid_size; + + int32_t probe_offset[3]; + int32_t step_size; + + int32_t half_size; + uint32_t occlusion_index; + int32_t cascade; + uint32_t pad; + }; + + SdfgiPreprocessShaderRD preprocess; + RID preprocess_shader; + RID preprocess_pipeline[PRE_PROCESS_MAX]; + + struct DebugPushConstant { + float grid_size[3]; + uint32_t max_cascades; + + int32_t screen_size[2]; + uint32_t use_occlusion; + float y_mult; + + uint32_t probe_axis_size; + float z_near; + float reserved1; + float reserved2; + + float cam_transform[16]; + float inv_projection[16]; + }; + + SdfgiDebugShaderRD debug; + RID debug_shader; + RID debug_shader_version; + RID debug_pipeline; + + enum ProbeDebugMode { + PROBE_DEBUG_PROBES, + PROBE_DEBUG_PROBES_MULTIVIEW, + PROBE_DEBUG_VISIBILITY, + PROBE_DEBUG_VISIBILITY_MULTIVIEW, + PROBE_DEBUG_MAX + }; + + struct DebugProbesSceneData { + float projection[2][16]; + }; + + struct DebugProbesPushConstant { + uint32_t band_power; + uint32_t sections_in_band; + uint32_t band_mask; + float section_arc; + + float grid_size[3]; + uint32_t cascade; + + uint32_t pad; + float y_mult; + int32_t probe_debug_index; + int32_t probe_axis_size; + }; + + SdfgiDebugProbesShaderRD debug_probes; + RID debug_probes_shader; + RID debug_probes_shader_version; + + PipelineCacheRD debug_probes_pipeline[PROBE_DEBUG_MAX]; + + struct Light { + float color[3]; + float energy; + + float direction[3]; + uint32_t has_shadow; + + float position[3]; + float attenuation; + + uint32_t type; + float cos_spot_angle; + float inv_spot_attenuation; + float radius; + }; + + struct DirectLightPushConstant { + float grid_size[3]; + uint32_t max_cascades; + + uint32_t cascade; + uint32_t light_count; + uint32_t process_offset; + uint32_t process_increment; + + int32_t probe_axis_size; + float bounce_feedback; + float y_mult; + uint32_t use_occlusion; + }; + + enum { + DIRECT_LIGHT_MODE_STATIC, + DIRECT_LIGHT_MODE_DYNAMIC, + DIRECT_LIGHT_MODE_MAX + }; + SdfgiDirectLightShaderRD direct_light; + RID direct_light_shader; + RID direct_light_pipeline[DIRECT_LIGHT_MODE_MAX]; + + enum { + INTEGRATE_MODE_PROCESS, + INTEGRATE_MODE_STORE, + INTEGRATE_MODE_SCROLL, + INTEGRATE_MODE_SCROLL_STORE, + INTEGRATE_MODE_MAX + }; + struct IntegratePushConstant { + enum { + SKY_MODE_DISABLED, + SKY_MODE_COLOR, + SKY_MODE_SKY, + }; + + float grid_size[3]; + uint32_t max_cascades; + + uint32_t probe_axis_size; + uint32_t cascade; + uint32_t history_index; + uint32_t history_size; + + uint32_t ray_count; + float ray_bias; + int32_t image_size[2]; + + int32_t world_offset[3]; + uint32_t sky_mode; + + int32_t scroll[3]; + float sky_energy; + + float sky_color[3]; + float y_mult; + + uint32_t store_ambient_texture; + uint32_t pad[3]; + }; + + SdfgiIntegrateShaderRD integrate; + RID integrate_shader; + RID integrate_pipeline[INTEGRATE_MODE_MAX]; + + RID integrate_default_sky_uniform_set; + + } sdfgi_shader; + +public: + static GI *get_singleton() { return singleton; } + + /* VOXEL GI API */ + + VoxelGI *get_voxel_gi(RID p_rid) { return voxel_gi_owner.get_or_null(p_rid); }; + bool owns_voxel_gi(RID p_rid) { return voxel_gi_owner.owns(p_rid); }; + + virtual RID voxel_gi_allocate() override; + virtual void voxel_gi_free(RID p_voxel_gi) override; + virtual void voxel_gi_initialize(RID p_voxel_gi) override; + + virtual void voxel_gi_allocate_data(RID p_voxel_gi, const Transform3D &p_to_cell_xform, const AABB &p_aabb, const Vector3i &p_octree_size, const Vector<uint8_t> &p_octree_cells, const Vector<uint8_t> &p_data_cells, const Vector<uint8_t> &p_distance_field, const Vector<int> &p_level_counts) override; + + virtual AABB voxel_gi_get_bounds(RID p_voxel_gi) const override; + virtual Vector3i voxel_gi_get_octree_size(RID p_voxel_gi) const override; + virtual Vector<uint8_t> voxel_gi_get_octree_cells(RID p_voxel_gi) const override; + virtual Vector<uint8_t> voxel_gi_get_data_cells(RID p_voxel_gi) const override; + virtual Vector<uint8_t> voxel_gi_get_distance_field(RID p_voxel_gi) const override; + + virtual Vector<int> voxel_gi_get_level_counts(RID p_voxel_gi) const override; + virtual Transform3D voxel_gi_get_to_cell_xform(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_dynamic_range(RID p_voxel_gi, float p_range) override; + virtual float voxel_gi_get_dynamic_range(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_propagation(RID p_voxel_gi, float p_range) override; + virtual float voxel_gi_get_propagation(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_energy(RID p_voxel_gi, float p_energy) override; + virtual float voxel_gi_get_energy(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_bias(RID p_voxel_gi, float p_bias) override; + virtual float voxel_gi_get_bias(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_normal_bias(RID p_voxel_gi, float p_range) override; + virtual float voxel_gi_get_normal_bias(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_interior(RID p_voxel_gi, bool p_enable) override; + virtual bool voxel_gi_is_interior(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_use_two_bounces(RID p_voxel_gi, bool p_enable) override; + virtual bool voxel_gi_is_using_two_bounces(RID p_voxel_gi) const override; + + virtual void voxel_gi_set_anisotropy_strength(RID p_voxel_gi, float p_strength) override; + virtual float voxel_gi_get_anisotropy_strength(RID p_voxel_gi) const override; + + virtual uint32_t voxel_gi_get_version(RID p_probe) const override; + uint32_t voxel_gi_get_data_version(RID p_probe); + + RID voxel_gi_get_octree_buffer(RID p_voxel_gi) const; + RID voxel_gi_get_data_buffer(RID p_voxel_gi) const; + + RID voxel_gi_get_sdf_texture(RID p_voxel_gi); + + /* VOXEL_GI INSTANCE */ + + //@TODO VoxelGIInstance is still directly used in the render code, we'll address this when we refactor the render code itself. + + struct VoxelGIInstance { + // access to our containers + RendererStorageRD *storage = nullptr; + GI *gi = nullptr; + + RID probe; + RID texture; + RID write_buffer; + + struct Mipmap { + RID texture; + RID uniform_set; + RID second_bounce_uniform_set; + RID write_uniform_set; + uint32_t level; + uint32_t cell_offset; + uint32_t cell_count; + }; + Vector<Mipmap> mipmaps; + + struct DynamicMap { + RID texture; //color normally, or emission on first pass + RID fb_depth; //actual depth buffer for the first pass, float depth for later passes + RID depth; //actual depth buffer for the first pass, float depth for later passes + RID normal; //normal buffer for the first pass + RID albedo; //emission buffer for the first pass + RID orm; //orm buffer for the first pass + RID fb; //used for rendering, only valid on first map + RID uniform_set; + uint32_t size; + int mipmap; // mipmap to write to, -1 if no mipmap assigned + }; + + Vector<DynamicMap> dynamic_maps; + + int slot = -1; + uint32_t last_probe_version = 0; + uint32_t last_probe_data_version = 0; + + //uint64_t last_pass = 0; + uint32_t render_index = 0; + + bool has_dynamic_object_data = false; + + Transform3D transform; + + void update(bool p_update_light_instances, const Vector<RID> &p_light_instances, const PagedArray<RendererSceneRender::GeometryInstance *> &p_dynamic_objects, RendererSceneRenderRD *p_scene_render); + void debug(RD::DrawListID p_draw_list, RID p_framebuffer, const CameraMatrix &p_camera_with_transform, bool p_lighting, bool p_emission, float p_alpha); + }; + + mutable RID_Owner<VoxelGIInstance> voxel_gi_instance_owner; + + _FORCE_INLINE_ VoxelGIInstance *get_probe_instance(RID p_probe) const { + return voxel_gi_instance_owner.get_or_null(p_probe); + }; + + _FORCE_INLINE_ RID voxel_gi_instance_get_texture(RID p_probe) { + VoxelGIInstance *voxel_gi = get_probe_instance(p_probe); + ERR_FAIL_COND_V(!voxel_gi, RID()); + return voxel_gi->texture; + }; + + RS::VoxelGIQuality voxel_gi_quality = RS::VOXEL_GI_QUALITY_LOW; + + /* SDFGI */ + + struct SDFGI { + enum { + MAX_CASCADES = 8, + CASCADE_SIZE = 128, + PROBE_DIVISOR = 16, + ANISOTROPY_SIZE = 6, + MAX_DYNAMIC_LIGHTS = 128, + MAX_STATIC_LIGHTS = 1024, + LIGHTPROBE_OCT_SIZE = 6, + SH_SIZE = 16 + }; + + struct Cascade { + struct UBO { + float offset[3]; + float to_cell; + int32_t probe_offset[3]; + uint32_t pad; + }; + + //cascade blocks are full-size for volume (128^3), half size for albedo/emission + RID sdf_tex; + RID light_tex; + RID light_aniso_0_tex; + RID light_aniso_1_tex; + + RID light_data; + RID light_aniso_0_data; + RID light_aniso_1_data; + + struct SolidCell { // this struct is unused, but remains as reference for size + uint32_t position; + uint32_t albedo; + uint32_t static_light; + uint32_t static_light_aniso; + }; + + RID solid_cell_dispatch_buffer; //buffer for indirect compute dispatch + RID solid_cell_buffer; + + RID lightprobe_history_tex; + RID lightprobe_average_tex; + + float cell_size; + Vector3i position; + + static const Vector3i DIRTY_ALL; + Vector3i dirty_regions; //(0,0,0 is not dirty, negative is refresh from the end, DIRTY_ALL is refresh all. + + RID sdf_store_uniform_set; + RID sdf_direct_light_uniform_set; + RID scroll_uniform_set; + RID scroll_occlusion_uniform_set; + RID integrate_uniform_set; + RID lights_buffer; + + bool all_dynamic_lights_dirty = true; + }; + + // access to our containers + RendererStorageRD *storage = nullptr; + GI *gi = nullptr; + + // used for rendering (voxelization) + RID render_albedo; + RID render_emission; + RID render_emission_aniso; + RID render_occlusion[8]; + RID render_geom_facing; + + RID render_sdf[2]; + RID render_sdf_half[2]; + + // used for ping pong processing in cascades + RID sdf_initialize_uniform_set; + RID sdf_initialize_half_uniform_set; + RID jump_flood_uniform_set[2]; + RID jump_flood_half_uniform_set[2]; + RID sdf_upscale_uniform_set; + int upscale_jfa_uniform_set_index; + RID occlusion_uniform_set; + + uint32_t cascade_size = 128; + + LocalVector<Cascade> cascades; + + RID lightprobe_texture; + RID lightprobe_data; + RID occlusion_texture; + RID occlusion_data; + RID ambient_texture; //integrates with volumetric fog + + RID lightprobe_history_scroll; //used for scrolling lightprobes + RID lightprobe_average_scroll; //used for scrolling lightprobes + + uint32_t history_size = 0; + float solid_cell_ratio = 0; + uint32_t solid_cell_count = 0; + + int num_cascades = 6; + float min_cell_size = 0; + uint32_t probe_axis_count = 0; //amount of probes per axis, this is an odd number because it encloses endpoints + + RID debug_uniform_set[RendererSceneRender::MAX_RENDER_VIEWS]; + RID debug_probes_scene_data_ubo; + RID debug_probes_uniform_set; + RID cascades_ubo; + + bool uses_occlusion = false; + float bounce_feedback = 0.5; + bool reads_sky = true; + float energy = 1.0; + float normal_bias = 1.1; + float probe_bias = 1.1; + RS::EnvironmentSDFGIYScale y_scale_mode = RS::ENV_SDFGI_Y_SCALE_75_PERCENT; + + float y_mult = 1.0; + + uint32_t render_pass = 0; + + int32_t cascade_dynamic_light_count[SDFGI::MAX_CASCADES]; //used dynamically + RID integrate_sky_uniform_set; + + void create(RendererSceneEnvironmentRD *p_env, const Vector3 &p_world_position, uint32_t p_requested_history_size, GI *p_gi); + void erase(); + void update(RendererSceneEnvironmentRD *p_env, const Vector3 &p_world_position); + void update_light(); + void update_probes(RendererSceneEnvironmentRD *p_env, RendererSceneSkyRD::Sky *p_sky); + void store_probes(); + int get_pending_region_data(int p_region, Vector3i &r_local_offset, Vector3i &r_local_size, AABB &r_bounds) const; + void update_cascades(); + + void debug_draw(uint32_t p_view_count, const CameraMatrix *p_projections, const Transform3D &p_transform, int p_width, int p_height, RID p_render_target, RID p_texture, const Vector<RID> &p_texture_views); + void debug_probes(RID p_framebuffer, const uint32_t p_view_count, const CameraMatrix *p_camera_with_transforms, bool p_will_continue_color, bool p_will_continue_depth); + + void pre_process_gi(const Transform3D &p_transform, RenderDataRD *p_render_data, RendererSceneRenderRD *p_scene_render); + void render_region(RID p_render_buffers, int p_region, const PagedArray<RendererSceneRender::GeometryInstance *> &p_instances, RendererSceneRenderRD *p_scene_render); + void render_static_lights(RID p_render_buffers, uint32_t p_cascade_count, const uint32_t *p_cascade_indices, const PagedArray<RID> *p_positional_light_cull_result, RendererSceneRenderRD *p_scene_render); + }; + + RS::EnvironmentSDFGIRayCount sdfgi_ray_count = RS::ENV_SDFGI_RAY_COUNT_16; + RS::EnvironmentSDFGIFramesToConverge sdfgi_frames_to_converge = RS::ENV_SDFGI_CONVERGE_IN_30_FRAMES; + RS::EnvironmentSDFGIFramesToUpdateLight sdfgi_frames_to_update_light = RS::ENV_SDFGI_UPDATE_LIGHT_IN_4_FRAMES; + + float sdfgi_solid_cell_ratio = 0.25; + Vector3 sdfgi_debug_probe_pos; + Vector3 sdfgi_debug_probe_dir; + bool sdfgi_debug_probe_enabled = false; + Vector3i sdfgi_debug_probe_index; + + /* SDFGI UPDATE */ + + int sdfgi_get_lightprobe_octahedron_size() const { return SDFGI::LIGHTPROBE_OCT_SIZE; } + + /* GI */ + enum { + MAX_VOXEL_GI_INSTANCES = 8 + }; + + // Struct for use in render buffer + struct RenderBuffersGI { + RID voxel_gi_textures[MAX_VOXEL_GI_INSTANCES]; + RID voxel_gi_buffer; + + RID full_buffer; + RID full_dispatch; + RID full_mask; + + /* GI buffers */ + RID ambient_buffer; + RID reflection_buffer; + RID ambient_view[RendererSceneRender::MAX_RENDER_VIEWS]; + RID reflection_view[RendererSceneRender::MAX_RENDER_VIEWS]; + RID uniform_set[RendererSceneRender::MAX_RENDER_VIEWS]; + bool using_half_size_gi = false; + uint32_t view_count = 1; + + RID scene_data_ubo; + + void free(); + }; + + struct SDFGIData { + float grid_size[3]; + uint32_t max_cascades; + + uint32_t use_occlusion; + int32_t probe_axis_size; + float probe_to_uvw; + float normal_bias; + + float lightprobe_tex_pixel_size[3]; + float energy; + + float lightprobe_uv_offset[3]; + float y_mult; + + float occlusion_clamp[3]; + uint32_t pad3; + + float occlusion_renormalize[3]; + uint32_t pad4; + + float cascade_probe_size[3]; + uint32_t pad5; + + struct ProbeCascadeData { + float position[3]; //offset of (0,0,0) in world coordinates + float to_probe; // 1/bounds * grid_size + int32_t probe_world_offset[3]; + float to_cell; // 1/bounds * grid_size + }; + + ProbeCascadeData cascades[SDFGI::MAX_CASCADES]; + }; + + struct VoxelGIData { + float xform[16]; // 64 - 64 + + float bounds[3]; // 12 - 76 + float dynamic_range; // 4 - 80 + + float bias; // 4 - 84 + float normal_bias; // 4 - 88 + uint32_t blend_ambient; // 4 - 92 + uint32_t mipmaps; // 4 - 96 + }; + + struct SceneData { + float inv_projection[2][16]; + float cam_transform[16]; + float eye_offset[2][4]; + + int32_t screen_size[2]; + float pad1; + float pad2; + }; + + struct PushConstant { + uint32_t view_index; + uint32_t max_voxel_gi_instances; + uint32_t high_quality_vct; + uint32_t orthogonal; + + float proj_info[4]; + + float z_near; + float z_far; + float pad1; + float pad2; + }; + + RID sdfgi_ubo; + enum Mode { + MODE_VOXEL_GI, + MODE_SDFGI, + MODE_COMBINED, + MODE_HALF_RES_VOXEL_GI, + MODE_HALF_RES_SDFGI, + MODE_HALF_RES_COMBINED, + + MODE_VOXEL_GI_MULTIVIEW, + MODE_SDFGI_MULTIVIEW, + MODE_COMBINED_MULTIVIEW, + MODE_HALF_RES_VOXEL_GI_MULTIVIEW, + MODE_HALF_RES_SDFGI_MULTIVIEW, + MODE_HALF_RES_COMBINED_MULTIVIEW, + + MODE_MAX + }; + + RID default_voxel_gi_buffer; + + bool half_resolution = false; + GiShaderRD shader; + RID shader_version; + RID pipelines[MODE_MAX]; + + GI(); + ~GI(); + + void init(RendererStorageRD *p_storage, RendererSceneSkyRD *p_sky); + void free(); + + SDFGI *create_sdfgi(RendererSceneEnvironmentRD *p_env, const Vector3 &p_world_position, uint32_t p_requested_history_size); + + void setup_voxel_gi_instances(RID p_render_buffers, const Transform3D &p_transform, const PagedArray<RID> &p_voxel_gi_instances, uint32_t &r_voxel_gi_instances_used, RendererSceneRenderRD *p_scene_render); + void process_gi(RID p_render_buffers, RID *p_normal_roughness_views, RID p_voxel_gi_buffer, RID p_environment, uint32_t p_view_count, const CameraMatrix *p_projections, const Vector3 *p_eye_offsets, const Transform3D &p_cam_transform, const PagedArray<RID> &p_voxel_gi_instances, RendererSceneRenderRD *p_scene_render); + + RID voxel_gi_instance_create(RID p_base); + void voxel_gi_instance_set_transform_to_data(RID p_probe, const Transform3D &p_xform); + bool voxel_gi_needs_update(RID p_probe) const; + void voxel_gi_update(RID p_probe, bool p_update_light_instances, const Vector<RID> &p_light_instances, const PagedArray<RendererSceneRender::GeometryInstance *> &p_dynamic_objects, RendererSceneRenderRD *p_scene_render); + void debug_voxel_gi(RID p_voxel_gi, RD::DrawListID p_draw_list, RID p_framebuffer, const CameraMatrix &p_camera_with_transform, bool p_lighting, bool p_emission, float p_alpha); +}; + +} // namespace RendererRD + +#endif /* !GI_RD_H */ |