Light reflectance on a sphere

Is there a function in Matlab give me the reflected light on a sphere as a vectors ? and what about " diffuse" function

Answer 1

[Jan]

diffuse and specular are a good point to start from, when you approximate a sphere by a set of polygones. I assume this is meant by "as a vectors". If not, please explain, what you have as inputs and want as output.

[Oday Shahadh]

I am estimating the satellite power generation by solar cells..a part of the power generated is from earth albedo and so the light source is the Sun.. I already have the Sun vector as well as the norms to each face of the satellite.. if I can get a set of vectors which represents the diffusion reflective light according to lambartian model.. So I can find the iincidence angles between the reflected diffused vectors and the norms to each side of the satellites.. Thanks in advance

[Star Strider]

See if the surfnorm function will give you the information you want.