can anyone make a crystal prism, shine light through it and have the color spectrum come out other side, bent? have been asked to do this for a poster and can't seem to do it.

The problem here is the properties of crystal. The software has yet to be able to take into account physical composition of a material. When light goes into a prism its bounced around inside and filtered, so that when it comes out again, you see the individual spectrum wave lengths. Now, you can fake this. By using lights hidden inside the crystal, you should be able to simulate the effect of the refraction. Would require a lot of setup time with the lights to get the effect right. It might be easier to get the basic white light to shine through the crystal, and then add the color spectrum in post-production. Lastly to get better coverage, and perhaps more ideas on how to do this Im going to move this message from the Challenge forum, over into the Modeling Forum, since I dont see a lighting forum. (going off to suggest this one right away too). - James Challenge Arena Moderator.

Heh... Dunno if it would work for you, but in Bryce (what I use) you can project lights thru gels. A gel can be any common image file, and behaves as a projector slide. So by placing the light source as if it were coming from the prizm... I think you could figure it out from there. Just my $.02 L8R