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View Full Version : Mental Ray and Intersecting Light Fogs problem


kbrown
09-15-2004, 03:23 PM
Hi,

With MR, if two light fogs intersect they seem to cancel out. Obviously this is not what I want. How do I get around this?

http://kbrown.wolfenstein.org/temp/lightFogProblem.jpg

http://kbrown.wolfenstein.org/temp/lightFogProblemWire.jpg

Maya Software renderer does not have this problem but I'd like to avoid using it since this is a part of a pretty large animation and an extra ligh fog pass would mean a lot of extra work...

Here's the above example rendered with Maya Software:
http://kbrown.wolfenstein.org/temp/mayaSoftwareLightFogOk.jpg

slipknot66
09-15-2004, 03:36 PM
I would suggest you to render using the mentalray volume scatter, here you can find more information
http://www.cgtalk.com/showthread.php?t=156886&page=1&pp=15

Hope it helps:thumbsup:

kbrown
09-15-2004, 04:19 PM
Wow... that's a long thread ;)

I'll take a look at it at some point. Thanks.

Anyway, I think I found some kind of solution using the parti_volume shader.

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