Bump in GPU mode is inverted

V-Ray V-Ray for Cinema 4D Issues
1

Hi

Just noticed that bumps in GPU mode are inverted - R23, latest nightly build (was present even before):

CPU:

2022-07-25 12_25_01-V-Ray VFB.png
2022-07-25 12_25_01-V-Ray VFB.png267×214 30.8 KB

GPU:
2022-07-25 12_25_51-V-Ray VFB.png
2022-07-25 12_25_51-V-Ray VFB.png267×214 26.9 KB

2

Hello @RwVision ,

Please note that there is a known bug where bump maps on CPU and GPU are not identical. The bug has already been reported to our developers for fixing (bug ID: VC4D-1312) and I will let you know once we have more information on the matter.

You can invert the bump map using the invert option in the V-Ray Bitmap, however, this has to be done for each texture separately.

3

Hello @RwVision ,

As I already mentioned here, please note that with the release of the latest update of V-Ray for Cinema4D the bug with the inverted bump map has been fixed. You can find more information about the update here. Thanks!​