"Foce back face culling" local use.

[flat]

I want to set up "Foce back face culling" per object.
It is not global.

Emulation is possible at V-RayMaterial?

[vlado]

You can emulate this with f.e. an OSL texture shader for the opacity that would return full transparency on the back side. I might get one of the guys to show an example tomorrow.

Best regards,
Vlado

[Ivan Mavrov]

As it turns out a GLSL shader looks really simple and does the job Vlado suggested.

As the GLSL support help index states:
"vec4 gl_Color returns white for front facing primitives and black otherwise."
This is strongly specific for our V-Ray implementation of GLSL.

I have attached an example, just rename the extension to .frag and load it in a VRayGLSLTex texture.
Then use it as an opacity map for the V-Ray material.

[flat]

Thank you!
It is a simple code. interesting.

Old style Toon outline can be created.