The Lafortune shader is based on the renderman shader by Stephen H. Westin and the research paper Non-linear approximation of reflectance functions. The shader introduces a new class of primitive functions with non-linear parameters for representing light reflectance functions.…

Gooch Cell Shader Implementation. The shader is based on traditional technical illustration, rather than photo-realistic shading. It renders an object with a hue and value shift rather than traditional shading models do. Based on the research paper “A Non-Photorealistic Lighting…

Glossy shader is based on the Renderman course notes by Larry gritz about Glossy specular Highlights. The shading model is based on the fact that the object is one that is highly polished causing a sharper specular highlight. Rather than the traditional specular highlight that…

DT3D skin shader is an oren nayar based shader with at the moment 54 controllable attributes that control the subsurface scattering and the many specular layers. It has 4 functions contributing to the subsurface scattering, that range in different effects that happen when light…

Car Paint shader is based on the Renderman shader by Peter Stuart Also from the research paper A Simple Layered RGB BRDF Model by Xavier Granier and Wolfgang Heidrich. The model simulates the interaction (interference) of light with itself due to a thin substrate. To completely…