Good example of faked SSS.

[trixian]

This is a simple setup for renderman that uses the shadow depth buffer from lights to achieve the desired effect (and some other clever tricks), and is meant to be used in a separate render pass.

http://zj.deathfall.com/depthbasedTranslucence.htm
http://www.renderman.org/RMR/Example...rGroup2002.ppt

My thought is that there must be a way to incorporate this into vray for fast "skin type" sss. Could vray maybe use information from the hemispherical sampling to bypass the need of shadowmaps?
As I see it now, getting SSS to work effectively in a production pipeline is still a pain, as even glossy SSS get slow in vray, more so if you want to use multiple maps to controll the effect (refraction ammout, glossy value, refraction colour etc).

[taboo]

is this something again which can be done with ambient occlusion method.. just a gues.

[gregpetch]

I'ts possible to get pretty good fake translucency by baking out an objects lighting to a bitmap, blurring it, and re-applying it to the mesh in the self illumination slot. It would be cool if such an effect was built into vray, and better still if the lighting could be blurred in 3d space rather than UV space.

[trixian]

I'ts possible to get pretty good fake translucency by baking out an objects lighting to a bitmap, blurring it, and re-applying it to the mesh in the self illumination slot. It would be cool if such an effect was built into vray, and better still if the lighting could be blurred in 3d space rather than UV space.

Well, this wont do me much good. I need a fast sollution that works for animations. One could maybe script this, but may not be worth the hassle quality wise.

Edit: What do you mean by bluring the light in 3d space? How do you blur a pixel uv mapped onto a surface in 3d and not uv?

[gregpetch]

Well, this wont do me much good. I need a fast sollution that works for animations. One could maybe script this, but may not be worth the hassle quality wise.

Edit: What do you mean by bluring the light in 3d space? How do you blur a pixel uv mapped onto a surface in 3d and not uv?

Render to texture works off your render parameters, so it is possible to bake out an objects lighting as an animation, but it is a hassle.

You can't really blur a map in 3d space, that's why I mentioned it in the wishlist, because it would be pretty useful.