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https://github.com/godotengine/godot
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47214ea9f5
Add an additional layer of indirection to the grid used by the lightmapper to store fixed-size triangle clusters. Greatly speeds up baking times on scenes with high triangle density, as the clusters will help to avoid unnecessary checks when the triangle density is high on the scene.
127 lines
2.2 KiB
GLSL
127 lines
2.2 KiB
GLSL
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/* SET 0, static data that does not change between any call */
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layout(set = 0, binding = 0) uniform BakeParameters {
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vec3 world_size;
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float bias;
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vec3 to_cell_offset;
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int grid_size;
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vec3 to_cell_size;
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uint light_count;
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mat3x4 env_transform;
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ivec2 atlas_size;
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float exposure_normalization;
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uint bounces;
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float bounce_indirect_energy;
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}
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bake_params;
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struct Vertex {
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vec3 position;
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float normal_z;
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vec2 uv;
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vec2 normal_xy;
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};
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layout(set = 0, binding = 1, std430) restrict readonly buffer Vertices {
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Vertex data[];
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}
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vertices;
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struct Triangle {
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uvec3 indices;
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uint slice;
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vec3 min_bounds;
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uint pad0;
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vec3 max_bounds;
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uint pad1;
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};
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struct ClusterAABB {
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vec3 min_bounds;
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uint pad0;
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vec3 max_bounds;
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uint pad1;
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};
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layout(set = 0, binding = 2, std430) restrict readonly buffer Triangles {
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Triangle data[];
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}
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triangles;
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layout(set = 0, binding = 3, std430) restrict readonly buffer TriangleIndices {
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uint data[];
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}
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triangle_indices;
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#define LIGHT_TYPE_DIRECTIONAL 0
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#define LIGHT_TYPE_OMNI 1
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#define LIGHT_TYPE_SPOT 2
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struct Light {
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vec3 position;
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uint type;
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vec3 direction;
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float energy;
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vec3 color;
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float size;
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float range;
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float attenuation;
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float cos_spot_angle;
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float inv_spot_attenuation;
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float indirect_energy;
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float shadow_blur;
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bool static_bake;
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uint pad;
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};
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layout(set = 0, binding = 4, std430) restrict readonly buffer Lights {
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Light data[];
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}
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lights;
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struct Seam {
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uvec2 a;
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uvec2 b;
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};
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layout(set = 0, binding = 5, std430) restrict readonly buffer Seams {
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Seam data[];
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}
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seams;
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layout(set = 0, binding = 6, std430) restrict readonly buffer Probes {
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vec4 data[];
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}
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probe_positions;
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layout(set = 0, binding = 7) uniform utexture3D grid;
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layout(set = 0, binding = 8) uniform texture2DArray albedo_tex;
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layout(set = 0, binding = 9) uniform texture2DArray emission_tex;
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layout(set = 0, binding = 10) uniform sampler linear_sampler;
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layout(set = 0, binding = 11, std430) restrict readonly buffer ClusterIndices {
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uint data[];
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}
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cluster_indices;
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layout(set = 0, binding = 12, std430) restrict readonly buffer ClusterAABBs {
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ClusterAABB data[];
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}
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cluster_aabbs;
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// Fragment action constants
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const uint FA_NONE = 0;
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const uint FA_SMOOTHEN_POSITION = 1;
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