Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: benjaloid on 2023-10-05, 19:39:13

Title: Thin pixel line when rendering
Post by: benjaloid on 2023-10-05, 19:39:13

Hi all, sometimes when I render certain scenes which include environments with volume materials or things with lots of glow and bloom, I get a thin 1hite pixel border in some areas and on outlines of objects?

Any ideas on a) whats causing this and b) how to rectify or build to avoid it?

It doesn't occur on interactive rendering just on my saved file

Thanks!!

Title: Re: Thin pixel line when rendering
Post by: BigAl3D on 2023-10-06, 16:03:41

Looks like you're saving your file with an Alpha Channel. Yes? If yes and you are planning on compositing onto another image, try it and you will see that edge is gone. If you are NOT using an Alpha, then I'm not sure what's going on. If those areas are super bright, the look into Highlight Clamping.

Title: Re: Thin pixel line when rendering
Post by: Beanzvision on 2023-10-06, 16:08:19

Hi there, are you saving as png and replacing the background elsewhere? You could try using a black colour shader in the direct visibility override too see if this helps.

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=41083.0;attach=188982;image)

There is also this video which might help too: