Add support for Object-space normal map

V-Ray V-Ray Common Public
1

Currently VRayNormalMap only support Tangent-space normal map (as wrote in the doc).

It’ll be great if V-Ray can add support for Object-space normal map because it have quite some advantage for some circumstance like avoid visible UV seams; it also handle culvatures better, avoid smoothing problems from the low-poly vertex normals.
CryEngine document has described this in details: CryEngine docs Tangent vs Object

The default Normal Bump of 3ds Max (and Render to texture) already support bake and render Object-space normal map (they called as “Local XYZ”): Link to NormalBump docs

(I’ve tried to assign the NormalBump with method Local XYZ into bump map slot of VrayMtl, but the result rendered has wrong shading so I guess V-Ray does not support that trick :slight_smile: )

2

This was requested before and we’ll do it. I’m surprised that your setup with the 3ds max NormalBump texture doesn’t work though - normally it should be fine. Can you post a scene where you are having issues with it?

Best regards,
Vlado