VRayMtrlID as baked element

[Mats_O]

Hi,
Is there any way I can render VRayMtlID when Render to Texture?

[hermit.crab]

Not directly. However, you can bake a VRayExtraTexMap, in which you plug a VRayMultiSubTex (based on face material ids) that holds VRayColor nodes for each ID.

[Mats_O]

Thanks Aleksander. We have tried this approach now but don´t really get the result we want. Seems like 3ds Max calls two different things "Material ID", at least that is how I read it. The ID I want to bake is the one highlighted in attached screenshot. Is that possible?