LYGIA Shader Library

2eta (lygia/lighting/ior/2eta)

Index of refraction to ratio of index of refraction

Use:

<float|vec3|vec4> ior2eta(<float|vec3|vec4> ior)

Check it on Github


#ifndef FNC_IOR2ETA
#define FNC_IOR2ETA
float ior2eta( const in float ior ) { return 1.0/ior; }
vec3 ior2eta( const in vec3 ior ) { return 1.0/ior; }
vec4 ior2eta( const in vec4 ior ) { return vec4(1.0/ior.rgb, ior.a); }
#endif

Use:

<float|float3|float4> ior2eta(<float|float3|float4> ior)

Check it on Github


#ifndef FNC_IOR2ETA
#define FNC_IOR2ETA
float ior2eta( const float ior ) { return 1.0/ior; }
float3 ior2eta( const float3 ior ) { return 1.0/ior; }
float4 ior2eta( const float4 ior ) { return float4(1.0/ior.rgb, ior.a); }
#endif

Licenses

LYGIA is dual-licensed under the Prosperity License and the Patron License for sponsors and contributors.

Sponsors and contributors are automatically added to the Patron License and they can ignore the any non-commercial rule of the Prosperity Licensed software (please take a look to the exception).

It's also possible to get a permanent comercial license hook to a single and specific version of LYGIA.

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