Weird artefact in Iray render

19ulrich90 · Apr 2018

So I'm having some strange problem in renderer. Here are screenshots from viewport, render and marmoset, second one with artefact from Iray.

Image: https://us.v-cdn.net/5021068/uploads/editor/zc/36adaj2fvjtl.jpg

Image: https://us.v-cdn.net/5021068/uploads/editor/sg/1sufqeo3530j.jpg

Image: https://us.v-cdn.net/5021068/uploads/editor/bg/9b7msenoctgb.jpg

19ulrich90 · Apr 2018

I thought, maybe it was because of non triangulated lowpoly model, but I also tried with triangulated and the artefact is still there. I'm also not sure if a curvature map should look like this...

Image: https://us.v-cdn.net/5021068/uploads/editor/ha/59fx2iioit4b.jpg

Jerc · Apr 2018

Iray has some issues with bak ed normal maps, it's a known issue.
Your curvature looks ok, it's probably a bit strong, you may want to reduce its intensity in the bake settings..

19ulrich90 · May 2018

Thanks for the reply @Jerc , didn't know about Iray and baked normal maps issues. Curvature map looks way better now

Weird artefact in Iray render

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