MentalRay prism with photons

[arneoog]

I've made this Scene to check out if maya could splitt the white light into colors. I worked as I was hopin. Well... almost, The light hitting the floor is still white! :( Does any body know what's wrong?

[sunder]

Give the shader located in this link a shot
http://www.highend3d.com/maya/downloads/shaders/3339.html