7c9e128bbf
Explicit constructor for mat3 from a mat4 is not valid and cannot be overloaded. Adding explicit texture resource type flags for depth textures. This is an explicit requirement for Metal Shading language. This is a temporary compatibility, as this path is already supported in GPU_SHADER_CREATE_INFO under ImageType::DEPTH_2D, though required in shader source for MSL shaders which do not have create info. Authored by Apple: Michael Parkin-White Ref T96261 Reviewed By: fclem Maniphest Tasks: T96261 Differential Revision: https://developer.blender.org/D14418
53 lines
1.3 KiB
GLSL
53 lines
1.3 KiB
GLSL
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#pragma BLENDER_REQUIRE(common_math_lib.glsl)
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#pragma BLENDER_REQUIRE(common_utiltex_lib.glsl)
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#pragma BLENDER_REQUIRE(lights_lib.glsl)
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uniform depth2D depthBuffer;
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out vec4 fragColor;
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void main()
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{
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if (laNumLight == 0) {
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/* Early exit: No lights in scene */
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fragColor.r = 1.0;
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return;
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}
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ivec2 texel = ivec2(gl_FragCoord.xy);
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float depth = texelFetch(depthBuffer, texel, 0).r;
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if (depth == 1.0f) {
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/* Early exit background does not receive shadows */
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fragColor.r = 1.0;
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return;
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}
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vec2 texel_size = 1.0 / vec2(textureSize(depthBuffer, 0)).xy;
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vec2 uvs = saturate(gl_FragCoord.xy * texel_size);
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vec4 rand = texelfetch_noise_tex(texel);
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float accum_light = 0.0;
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vec3 vP = get_view_space_from_depth(uvs, depth);
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vec3 P = transform_point(ViewMatrixInverse, vP);
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vec3 vNg = safe_normalize(cross(dFdx(vP), dFdy(vP)));
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for (int i = 0; i < MAX_LIGHT && i < laNumLight; i++) {
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LightData ld = lights_data[i];
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vec4 l_vector; /* Non-Normalized Light Vector with length in last component. */
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l_vector.xyz = ld.l_position - P;
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l_vector.w = length(l_vector.xyz);
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float l_vis = light_shadowing(ld, P, 1.0);
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l_vis *= light_contact_shadows(ld, P, vP, vNg, rand.x, 1.0);
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accum_light += l_vis;
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}
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fragColor.r = accum_light / float(laNumLight);
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}
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