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ClosureDescriptionRay Types
microfacet – ggxModels isotropic or anisotropic GGX BRDF. This model can handle reflection, refraction or both at the same time.reflection, refraction, glossy
microfacet – gtrModels isotropic GTR BRDF. A "gamma" parameter can be supplied to control the "tail" of the highlight to model highly realistic materials.reflection, refraction, glossy
microfacet – cooktorranceModels an anisotropic Cook-Torrance BRDF.reflection, glossy
microfacet – blinnModels a Blinn specular BRDFreflection, glossy
oren_nayarModels a diffuse reflector based on the Oren-Nayar model.diffuse
diffuseModels a diffuse reflector. diffuse
reflection

Models a perfect reflector. Note that fresnel factor is automatically computed by 3Delight. If no fresnel component is wanted, one can pass 0 as the "eta" parameter.

reflection
refractionModels a refraction. Fresnel factor is included by 3Delight.refraction
hairModels a Marschner BRDF for hair. Simulates the R, TT and TRT lobe as suitable for a monte carlo simulation.reflection, refraction, glossy.

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