Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] Bug Reporting => Topic started by: LeSill on 2021-04-30, 17:15:54

Title: Wierd light color artifacts
Post by: LeSill on 2021-04-30, 17:15:54

Hello,

I am having trouble with artifacts showing on a few geometries. It is a bit strange because I have 2 rows of the same chairs in the picture. One seems to be OK but the other one has the artifacts. The same problems shows on more meshes. The meshes are often simple cubes so the geometry shouldn't be the problem. I have tried to place on the chairs simple material without any textures and when I have darken the color the same artifacts has appeared. Any solution?

Thanks guys

Title: Re: Wierd light color artifacts
Post by: burnin on 2021-05-01, 00:28:33

Reverted normals? Negative Scale? Bad Normal map? It's just reflection of how you made your shader??? ck...
More info is needed. Do share an example or...

Title: Re: Wierd light color artifacts
Post by: romullus on 2021-05-01, 10:21:03

I could be wrong, but it looks like "black highlights" issue: https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations

Title: Re: Wierd light color artifacts
Post by: LeSill on 2021-05-03, 09:51:45

Thank you guys for your answers.
After going through the scene I have found the problem. I have used a simple plane mesh for the background of the windows. By using Corona compositor I have disabled seen by GI and cast shadows. I wanted to keep it seen by reflections and it was the problem. So there is some limitation to this.