MDLMaterialSemantic.interfaceIndexOfRefraction
The index of refraction for the medium surrounding a material.
Declaration
case interfaceIndexOfRefractionDiscussion
This value corresponds to the n1 parameter in Schlick’s equation for approximating Fresnel reflection effects. Typically, one assumes a the medium surrounding a material is air or empty space, so a value of 1.0 suffices for most uses of this semantic.
See Also
Constants
MDLMaterialSemantic.baseColorMDLMaterialSemantic.subsurfaceMDLMaterialSemantic.metallicMDLMaterialSemantic.specularMDLMaterialSemantic.specularExponentMDLMaterialSemantic.specularTintMDLMaterialSemantic.roughnessMDLMaterialSemantic.anisotropicMDLMaterialSemantic.anisotropicRotationMDLMaterialSemantic.sheenMDLMaterialSemantic.sheenTintMDLMaterialSemantic.clearcoatMDLMaterialSemantic.clearcoatGlossMDLMaterialSemantic.emissionMDLMaterialSemantic.bump