Matte Material in Vray Next producing strange artifacts

[boundary]

does anyone know why I might be receiving these strange blocky shadows on the vray matte material? would be such a great tool if it can be rendered without this ?

[Peter.Chaushev]

I assume you are using V-Ray 3.6?
There are a couple of ways to resolve this issue:

• Add a Shadows render element
  Settings > Render Elements
• Disable Adaptive Lights
  Settings > Raytrace (advanced view) > Optimizations > Adaptive Lights checkbox

This bug is fixed in V-Ray Next.

Kind regards,
Peter

[boundary]

Hi Peter,
Thanks for this - i will try those fixes now - Just to let you know though I am using VRAY NEXT not 3.6!!!

[Peter.Chaushev]

If this is the case, could you please send over the project file for investigation? Please archive it using Extensions > V-Ray > Pack Project and then email it at support@chaosgroup.com and include a link to this forum thread.
Additionally, did you use the CPU or GPU engine when you rendered the images displayed in your previous post?

Kind regards,
Peter

[Peter.Chaushev]

The issue is caused by the new Adaptive Dome Light functionality. To avoid the issue when using Matte Wrapper material, please disable the light's "Adaptive" toggle.
A fix will be provided in the first major update for V-Ray Next for SketchUp (v4.1).

Kind regards,
Peter