luboslenco
19 lines
474 B
GLSL
19 lines
474 B
GLSL
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#ifndef _BRDF_GLSL_
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#define _BRDF_GLSL_
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vec3 surface_albedo(const vec3 base_color, const float metalness) {
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return mix(base_color, vec3(0.0, 0.0, 0.0), metalness);
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}
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vec3 surface_f0(const vec3 base_color, const float metalness) {
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return mix(vec3(0.04, 0.04, 0.04), base_color, metalness);
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}
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float mip_from_roughness(const float roughness, const float num_mipmaps) {
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// First mipmap level = roughness 0, last = roughness = 1
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return roughness * num_mipmaps;
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}
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#endif
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