Hi everyone, i would like to know if the material specs for the surface can be turned off , or it slows things down while switching beetween different material values , i have noticed that not all of the opengl application make use of the material properties especially when an object is textured.

you use the material setting "glMaterialfv()" only, when you
have created (for example) an sphere (without texture) and want to turn on lighting. If you want to specify the red-green-blue-
fragment of the light color that is refected by the sphere surface.