Add like a VRayMtl Affect Channels per render elements

[Kakashi]

Hi.

I like VrayMtl Affect Channels that can control render elements.
But this parameter can't only control by material.

For example, I want to set that Affect channels is color only mode for alpha and mask elements like multimatte.
But I want to set that Affect channels is All channels mode for Lighting/GI/reflection/refraction/specular etc.
Only material parameter cannot make these.

If like Affect Channels parameter can control by per render elements, users set render channels more flexibly.

[vlado]

This came up on the 3ds Max forum section too; it's not technically very difficult to do it, I'm just trying to figure out what's the best way to implement it UI-wise. Maybe a check-box per render element does make sense indeed.

Best regards,
Vlado