MATLAB®

diffuse - Calculate diffuse reflectance

Syntax

R = diffuse(Nx,Ny,Nz,S)

Description

R = diffuse(Nx,Ny,Nz,S) returns the reflectance of a surface with normal vector components [Nx,Ny,Nz]. S specifies the direction to the light source. You can specify these directions as three vectors[x,y,z] or two vectors [Theta Phi (in spherical coordinates).

Lambert's Law: R = cos(PSI) where PSI is the angle between the surface normal and light source.

See Also

specular, surfnorm, surfl

Lighting as a Visualization Tool

diff

dir