Matte Shadow Glitch in VRay 6

[james_cutler]

It appears that there is a bit of glitch when using Matte Shadow floor material on a VRayPlane in VRay 6. White lines and what look like blocks appear in the RGB, although not present in the alpha channel. However the lines do appear when opening the file in post. Rendered the same scene in VRay 5 and the white lines and blocks are not there. File attached if needed.

[Tucano13]

We are experiencing the same behavior with Vrayplane as matte object in our scenes and see these block artefacts only in RGB channel..Its currently not affecting our end-results as the alpha channel is fine but hope this will get fixed soon!

[vladimir_krastev]

Hi I think you hit this issue. Try the latest stable version of V-Ray 6 and let us know if this fixes the issue. We have a fix ready for release and it will get on air with the next V-Ray 6 hotfix.
If you have difficulties testing on your own you can send me the scene here or though the support contact form (please include a link to the forum thread).

[james_cutler]

Hi I think you hit this issue. Try the latest stable version of V-Ray 6 and let us know if this fixes the issue. We have a fix ready for release and it will get on air with the next V-Ray 6 hotfix.
If you have difficulties testing on your own you can send me the scene here or though the support contact form (please include a link to the forum thread).

Ah yes, perfect thank you. The issue is now fixed

[james_cutler]

Ah just noticed the same issue occurring on Chaos Cloud. Any ETA for when that might be fixed?

[vladimir_krastev]

Once the hotfix is public it will also be uploaded to Chaos Cloud so the fixes will take effect there as well. Stay tuned the hotfix is coming very soon.