NAME
eshadow - make shadow image matrix
SYNOPSIS
x=eshadow(matrix,nColors,colorMap,lumen,image)
PARAMETER(S)
matrix matrix for image
nColors number of colors
colorMap (nColors*nBrightnessLevels) x 3 Matrix
lumen light direction, [x,y,z] vector
image cover image
x shadow image matrix
Stefan Mueller
2003-01-13