dirty surfaces

[Fred Wasson]

I’m trying to figure out why I get dirty surfaces on my project. It seems I only get this result when the surfaces are at a grater angle to the camera (The fascia). I’m sure it is a common setting I haven’t figured out yet.

Can someone please help?

Fred

[Peter M. Gruhn]

I'm having a hard time seeing what you're complaining about. But it's a small small screen.

 

Have you tried higher FG than "low"?

I see something that might be an AA issue; how about your sampling? Render a small region with overboard samples 4:64, .01.

Are you using any AO? Low AO samples (and/or broad spread) can look "dirty".

Could it be a shadow sampling issue? Some, like area shadow like to have more samples, others like shadow map benefit from a narrow area of... importance; but I don't think that would look dirty.