Double Side and thin surface SSS simulation.

[Micha_cg]

This is not a VrayForRhino wish, but .... if Vlado is reading this:

Today I have build a scene with thin fabric at the ceiling. I would like, if my virtaul material could be diffuse textured and if it would transmit the lighting from the one side to the other. In renderman it can be done very simple per:

surfacecolor = k_front*diffuse(N) + k_back*diffuse(-N)  N ... surface normal

It's the poor man SSS. Very fast. In luxery version each side could get an own texure. Nice to use for leaves.
I think, the disabled "doube-side" option of Vray is the half code. Only the black other side is a big problem. Will be a thin surface shader possible for Vray?

-Micha

[vlado]

Re: Double Side and thin surface SSS simulation.

This is not a VrayForRhino wish, but .... if Vlado is reading this:

Today I have build a scene with thin fabric at the ceiling. I would like, if my virtaul material could be diffuse textured and if it would transmit the lighting from the one side to the other. In renderman it can be done very simple per:

surfacecolor = k_front*diffuse(N) + k_back*diffuse(-N)  N ... surface normal

It's the poor man SSS. Very fast. In luxery version each side could get an own texure. Nice to use for leaves.
I think, the disabled "doube-side" option of Vray is the half code. Only the black other side is a big problem. Will be a thin surface shader possible for Vray?

-Micha

There is one in newer versions for 3dsmax...

Best regards,
Vlado

[Micha_cg]

Double Side and thin surface SSS simulation.

I hope we get it for Rhino too once a day.