Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: KAB on 2020-10-08, 12:04:12

Title: Problem with Material using Displacement
Post by: KAB on 2020-10-08, 12:04:12

Hello

I have the problem when rendering with materials that use displacement (carpet, gravel) that the material draws the polygon geometry. I send you a test scene with a test image so you can see what I mean.

Do you know a solution?
Thanks a lot,
KAB

Title: Re: Problem with Material using Displacement
Post by: burnin on 2020-10-08, 13:14:13

Go to
Render settings >Corona >Performance settings tab
and disable/uncheck New 2.5D displacement
(https://forum.corona-renderer.com/index.php?action=dlattach;topic=31131.0;attach=134775;image)

Title: Re: Problem with Material using Displacement
Post by: KAB on 2020-10-08, 14:21:30

Great! Many thanks it seems to work out this was!

Title: Re: Problem with Material using Displacement
Post by: KAB on 2020-10-28, 18:25:19

Hi

I work now on a new Project and strangely I have the same problem with the visible polygone lines by using the displacement material option even after unchecking NEW 2.5D Displacement.

Does anyone know another solution for this problem?

Title: Re: Problem with Material using Displacement
Post by: burnin on 2020-10-30, 22:53:19

Yes... and another thing to note first.

Basically, what you're experiencing is a standard path tracer shading issue over a long polygon. Gets more pronounced with tris.
More about... (https://youtu.be/Kizs6RIa1dQ)

So here i'd advise to simply untriangulate geo & add edge weighted loops on the sides.
Also, to simplify it further, since it's a micro - visual element, use only bump in material instead of displacement.