LC #42 Pipers Alley

View Full Version : how to do subsurface scattering in MR for Maya 1.5 / maya 4.5 correctly?

10-30-2002, 01:56 AM
Hi there :)

I just tried to get subsurface scattering to work (maya 4.5 / mental ray for maya 1.5) thinking: "haha! piece of cake! just drag translucence to something else than 0.0 and there ya go".

sadly, I bombed while trying this.

here's my setup:

GI switched on
FG switched on

skydome, one spotlight (emit photons on, area light rectangle) behind a sphere with a lambert (translucence set to about 0.5, t-depth to 0.5).

and: nothing happens. I thought I would see a similar effect to ice or skin with the light shining through the thinner parts... but no chance.

any1 able to explain how to set this up right?

11-08-2002, 12:24 AM
I'm not sure wheter MR supports subsurface scattering, couldn't find any clues on the page or in the specs.
Do you think of Renderman instead? Or am i wrong?


11-08-2002, 12:36 AM
as far as my research has come, one needs to write a custom shader for this.

I will try to write one in the following days...
perhaps it all turns out to be easily possible.
dunno yet; I've never written a shader for mental ray.

I'd like to achieve a similar effect to this one:

CGTalk Moderation
01-13-2006, 09:01 PM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.