20 lines
No EOL
673 B
HLSL
20 lines
No EOL
673 B
HLSL
/*
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contributors: Patricio Gonzalez Vivo
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description: Convertes from PBR roughness/metallic to a shininess factor (typaclly use on diffuse/specular/ambient workflow)
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use: float toShininess(<float> roughness, <float> metallic)
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license:
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
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*/
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#ifndef FNC_TOSHININESS
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#define FNC_TOSHININESS
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float toShininess(float roughness, float metallic) {
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float s = .95 - roughness * 0.5;
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s *= s;
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s *= s;
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return s * (80. + 160. * (1.0-metallic));
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}
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#endif |