Circle pattern on metallic material

[dpsd1989]

I am facing a problem in my render scene. I am trying to render a facade and circle patterns appear on the material. I change more than 5 times the material. I added and deleted the UVW map. I deleted the Sun light Vray.

Can anyone help me to fix it please cause I do not know what to do?

[Francisco_Penaloza]

First be sure you are using a licensed copy or 3D Max and V_Ray.

That model was done in Sketchup? or in 3D Max?

it may be a backward-facing plane or an overlapping geometry.

Also, turn off any displacement you may have and test your scene.

Are you using V Ray dirt on your material? turn that off and see if that fix it.