The apparatus of claim 9 wherein zero, first and second order reflection equations are used;said zero order equation comprising a dot product, L???N, where L is an average light vector and N is an average normal vector to the surface; said first order equation comprising, C=(Ka+Kd* cos (a))*Cp where C is the pixel color, Ka is an ambient weight, Kd is a diffuse weight and cos (a) is equal to the d