Oren Nayar shader is based on the research paper "Generalization of Lambert's Reflectance Model".… more

Oren Nayar shader is based on the research paper "Generalization of Lambert's Reflectance Model". The shader is based on a more physical approach to shading rough surfaces, and considers rough surfaces to have microscopic grooves and hills. Unlike the conventional Lambert shader that assumes its a smooth surface that reflects light equally. Os: Windows - XP - 32Bit / 64Bit Maya / Mental Ray : 7.0 / 8.0 / 8.5 / 2008 / 2009 -compiled for maya 2009 -compiled for maya/mental ray 64Bit Less