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Differential D17089 Diff 60052 source/blender/draw/engines/eevee/shaders/lightprobe_filter_diffuse_frag.glsl

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source/blender/draw/engines/eevee/shaders/lightprobe_filter_diffuse_frag.glsl

#pragma BLENDER_REQUIRE(random_lib.glsl) #pragma BLENDER_REQUIRE(random_lib.glsl)
#pragma BLENDER_REQUIRE(bsdf_sampling_lib.glsl) #pragma BLENDER_REQUIRE(bsdf_sampling_lib.glsl)
#pragma BLENDER_REQUIRE(common_math_geom_lib.glsl) #pragma BLENDER_REQUIRE(common_math_geom_lib.glsl)
#pragma BLENDER_REQUIRE(irradiance_lib.glsl) #pragma BLENDER_REQUIRE(irradiance_lib.glsl)
#define M_4PI 12.5663706143591729 #define M_4PI 12.5663706143591729
vec3 get_cubemap_vector(vec2 co, int face)
{
/* NOTE(Metal): Declaring constant array in function scope to avoid increasing local shader
* memory pressure. */
const mat3 CUBE_ROTATIONS[6] = mat3[]( const mat3 CUBE_ROTATIONS[6] = mat3[](
mat3(vec3(0.0, 0.0, -1.0), vec3(0.0, -1.0, 0.0), vec3(-1.0, 0.0, 0.0)), mat3(vec3(0.0, 0.0, -1.0), vec3(0.0, -1.0, 0.0), vec3(-1.0, 0.0, 0.0)),
mat3(vec3(0.0, 0.0, 1.0), vec3(0.0, -1.0, 0.0), vec3(1.0, 0.0, 0.0)), mat3(vec3(0.0, 0.0, 1.0), vec3(0.0, -1.0, 0.0), vec3(1.0, 0.0, 0.0)),
mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, 0.0, 1.0), vec3(0.0, -1.0, 0.0)), mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, 0.0, 1.0), vec3(0.0, -1.0, 0.0)),
mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, 0.0, -1.0), vec3(0.0, 1.0, 0.0)), mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, 0.0, -1.0), vec3(0.0, 1.0, 0.0)),
mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, -1.0, 0.0), vec3(0.0, 0.0, -1.0)), mat3(vec3(1.0, 0.0, 0.0), vec3(0.0, -1.0, 0.0), vec3(0.0, 0.0, -1.0)),
mat3(vec3(-1.0, 0.0, 0.0), vec3(0.0, -1.0, 0.0), vec3(0.0, 0.0, 1.0))); mat3(vec3(-1.0, 0.0, 0.0), vec3(0.0, -1.0, 0.0), vec3(0.0, 0.0, 1.0)));
vec3 get_cubemap_vector(vec2 co, int face)
{
return normalize(CUBE_ROTATIONS[face] * vec3(co * 2.0 - 1.0, 1.0)); return normalize(CUBE_ROTATIONS[face] * vec3(co * 2.0 - 1.0, 1.0));
} }
float area_element(float x, float y) float area_element(float x, float y)
{ {
return atan(x * y, sqrt(x * x + y * y + 1)); return atan(x * y, sqrt(x * x + y * y + 1));
} }
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