15 lines
No EOL
616 B
GLSL
15 lines
No EOL
616 B
GLSL
/*
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contributors: Patricio Gonzalez Vivo
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description: Index of refraction to ratio of index of refraction
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use: <float|vec3|vec4> ior2eta(<float|vec3|vec4> ior)
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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_IOR2ETA
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#define FNC_IOR2ETA
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float ior2eta( const in float ior ) { return 1.0/ior; }
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vec3 ior2eta( const in vec3 ior ) { return 1.0/ior; }
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vec4 ior2eta( const in vec4 ior ) { return vec4(1.0/ior.rgb, ior.a); }
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#endif |