Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: davetwo on 2019-05-01, 08:47:17

Title: Jagged displacement problems
Post by: davetwo on 2019-05-01, 08:47:17
I'm trying to deboss some type onto a gloss surface, but I'm getting jagged edges rather than the smooth transition that I'm after.
The image i'm using is 4k, black and white, I've tried 16bit and 8 bit. Rgb and greyscale. Blurring the edges in Photoshop and blurring the edges in the C4D. But the artefacts are still there.

Am I missing something?
Title: Re: Jagged displacement problems
Post by: davetwo on 2019-05-01, 11:29:37
As an update, this seems to be a problem when it's applied to certain geometry. On a flat parametric plane the material displaces fine. But on the object I want to use, the displacement is jagged. Mmmm
Title: Re: Jagged displacement problems
Post by: romullus on 2019-05-01, 13:50:12
It wouldn't hurt to see some examples...
Title: Re: Jagged displacement problems
Post by: davetwo on 2019-06-04, 19:45:46
I have the same problem in a new file so - I'm resurrecting this thread.
I've tried testing on different surfaces and with different resolutions and profiles, but without any luck. Pretty crappy jagged displacement on all tests.
Am i missing something? or is this a bug?
Screengrab and test file attached.
Hopefully someone can shed some light on it.

(oh, Daily Build april 15. c4d r20, mac)
Title: Re: Jagged displacement problems
Post by: romullus on 2019-06-04, 19:55:30
Did you try to lower displacement size in render settings? It seems that you're using default settings, which might be too coarse for such fine displacement, especially in recent builds.
Title: Re: Jagged displacement problems
Post by: davetwo on 2019-06-05, 08:48:59
Aha - i've reduced the displacement screen size from 3px to 1 and that does help a lot actually. Thanks for the info!
Title: Re: Jagged displacement problems
Post by: romullus on 2019-06-05, 09:40:25
You're welcome!