V-Ray GPU ignoring non-bitmap inputs in normal map slot

V-Ray V-Ray GPU V-Ray GPU :: Issues
1

Hi,

I’m noticing an issue with V-Ray GPU where the normal map slot only seems to work with bitmap textures.

I am using a VRayNormalMap plugged into the bump slot of a VRayMtl.

If I feed anything other than a bitmap into the VRayNormalMap for example:

  • V-Ray Color
  • procedural normal maps
  • OSL-generated normal output

They are ignored in GPU rendering.

The same setup works correctly in V-Ray CPU, so this seems specific to the GPU engine.

Is this an expected limitation, or is there something I might be missing?

Thanks.

2

Most likely a limitation. I’ll ask around and report back.

3

Devs said it may be something else. Logged the issue (VGPU-7153) for further investigation.

4

Thanks for the update @hermit.crab . I can provide a simple test scene if needed.

5

It’s reproducible with a VRayColor; I presume it will suffice for now.

6

Yeah, same here. I posted it on my old thread too. Bump slot is ignored.

7

Work has already started on a fix. I’ll inform you whenever there’s a nightly build with which to test.

8

Sweet! Thanks :slight_smile:

Take care (since 20 characters are needed) :face_with_raised_eyebrow: