VRayMtl Subsurface scattering rollout, how do you make it work?

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Old 06 June 2012   #1
VRayMtl Subsurface scattering rollout, how do you make it work?

I've been experimenting with all the sliders for ages and it doesn't seem to have any effect. I do not understand it. I have refraction turned up and fog colour etc.

Does anyone out there understand this roll out, does it do anything?

I am aware there's a dedicated SSS shader but it looks like it works a bit differently and I want to get the VRay material one working.
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Old 06 June 2012   #2
Hi,
1) Add refraction
2) Less fog color you have, more SSS you will have. So, set you fog color to 100/100/100 for example.
3) Set your SSS color to red for example.

Done.
 
Old 06 June 2012   #3
you should use a FastSSS shader since it's less compute intensive than using the SSS rollout in the V-Ray Materials.
 
Old 03 March 2013   #4
Sss

Quote:
Originally Posted by cgbeige
you should use a FastSSS shader since it's less compute intensive than using the SSS rollout in the V-Ray Materials.


Is the one in the Vraymtl rollout more accurate?
 
Old 03 March 2013   #5
I don't think so. It's just missing optimizations that are in the fast SSS shaders. But you can't aim for 100% computational accuracy when you do SSS or else you'll be rendering for a ton of time (do an SSS render in Maxwell if you want to know what I mean). You can accomplish a perfectly realistic skin shader with the Fast SSS Material and a coat material with Fresnel blend for the reflectivity.
 
Old 03 March 2013   #6
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