Colored Shadows and Colored Caustics

Maya
1

On the AW MR webpage - http://www.aliaswavefront.com/en/products/...entalray.shtml# - there are two images by Paolo Berto that I have questions about. One image, a red glass ball on a gray floor (to demo caustics effect) did not change the color of the light as it passed through the red glass ball. I also noticed that the caustic reflections of the image of three gold rings were also white. Does MR color light as it passes through a colored transparent object? Does it give colored caustics? I know I can fake colored shadows by changing the light's shadow color, but how do I fake colored caustic reflections? It doesn't make a lot of sense to me. MR with global illumination has color bleeding but MR with caustics seems to keep the light color the same.

Thanks,

2

colored caustics works.
also with semitrasparent attenuated colored shadows (showing a trick at siggraph for this).

I did it on purpouse on the red sphere, wanted a B+W env with the red sphere. It's not physically correct but I like it like that way.

paolo

3

Paolo,
Thanks for the info. Any tutorial or book recommendations for an MR newbie?

4

siggraph is very far from europe....
would be great if you can present your tricks sometimes
for all