GLDIFFUSE
GLDIFFUSE is a term used in computer graphics to denote the diffuse component of a surface’s reflectance in lighting calculations. In OpenGL contexts, it is commonly associated with the GL_DIFFUSE material property, which defines how much diffuse light a surface reflects.
In the OpenGL fixed-function pipeline, the diffuse color is set with functions such as glMaterialfv and the
The diffuse component is generally isotropic, meaning it is roughly the same in all viewing directions and
GLDIFFUSE, when used, refers to the diffuse reflectance property of a material. While the exact naming can