Strange Circle effect appearing on Render

[grace_vickery]

Hi,

I have suddenly started getting a strange circle effect on my renders. I have been using the model for a while and this issue has only just started. Does anyone have any idea what could be causing it?

Thanks

[Peter.Chaushev]

Hello, Grace,
Thank you for sharing this illustration with us!
The observed radial effect (as well as the similar one on the right wall) does not appear to be a known issue such as color banding. Perhaps there is some material effect applied (e.g. bump) at a very small scale which creates these patterns.

Unfortunately, I can only speculate about the cause. In order to be able to help you, could you please send over your project for investigation?
You can archive your scene by using the SketchUp menuExtensions > V-Ray > Pack Project and then upload the resulting zip file via https://support.chaos.com/hc/en-us/requests/new . Make sure to mention this forum thread in the description box.
Additionally, please let us know what operating system (Win/macOS) and version of V-Ray for SketchUp you use (version number is displayed in Extensions > V-Ray > Help > About).

Kind regards,
Peter