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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 … 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