1.24.3 Material Shaders and Photon Shaders for Caustics

 

1.24.3 Material Shaders and Photon Shaders for Caustics

 

mental ray comes with threematerial shaders that support caustics (and global illumination2:1) soft material, dgs material and dielectric material. Their photon shader equivalents are soft material photon, dgs - material photon and dielectric material photon. When defining a material it is necessary to specify both the regular material shader and the photon shader. Most often, however, the photon shader can inherit the parameter setting from the regular material shader. In addition to these six shaders, users can write new material and photon material shaders.