Doppler Effect Circles in Vray Renders

Practice1.skp (149.0 KB)

Why are these circles appearing in my render? Is this a bug with the software or am I doing something wrong?

Your render is displayed as a blank canvaas.

I suspect the word you wanted is “moire” not “Doppler”. Moire refers to swirly patterns when two grids overlay one another. That said, I too see nothing at all in the image you uploaded.

Is it possible you are not using the denoiser?

The Section is exactly on the face of the wall, move it a little away from the wall