Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] Bug Reporting => Topic started by: zonlons on 2019-12-15, 09:51:01

Title: Volume fog effect error
Post by: zonlons on 2019-12-15, 09:51:01
Occlusion errors with objects using volume shaders

Using the Software CINEMA4D R21
Title: Re: Volume fog effect error
Post by: Beanzvision on 2019-12-16, 11:43:32
Hi there, Where is the tree model from? I'm trying to recreate this issue but I'm not having much luck. Are you able to share your scene with us via our private uploader? When saving from Cinema, please choose the "save project with assets" option. This will ensure all materials are linked to the scene. Thanks.
https://corona-renderer.com/upload
Title: Re: Volume fog effect error
Post by: maru on 2019-12-16, 18:06:23
Is there refraction used in those tree materials?
Title: Re: Volume fog effect error
Post by: zonlons on 2019-12-18, 17:18:20
I cannot upload to the server, it may be a network problem, so I can upload to dropbox and share with you

Dropboxhttps://www.dropbox.com/s/k8ii3jz127nxl31/%E5%B1%B1%E9%97%B4%E5%B0%8F%E8%B7%AF.rar?dl=0 (https://www.dropbox.com/s/k8ii3jz127nxl31/%E5%B1%B1%E9%97%B4%E5%B0%8F%E8%B7%AF.rar?dl=0)
Title: Re: Volume fog effect error
Post by: Beanzvision on 2019-12-19, 12:07:03
Quote from: zonlons on 2019-12-18, 17:18:20
I cannot upload to the server, it may be a network problem, so I can upload to dropbox and share with you

Dropboxhttps://www.dropbox.com/s/k8ii3jz127nxl31/%E5%B1%B1%E9%97%B4%E5%B0%8F%E8%B7%AF.rar?dl=0 (https://www.dropbox.com/s/k8ii3jz127nxl31/%E5%B1%B1%E9%97%B4%E5%B0%8F%E8%B7%AF.rar?dl=0)

Thanks, downloading it now.
Title: Re: Volume fog effect error
Post by: Beanzvision on 2019-12-19, 15:07:02
Hi Zonlons,

So, we have looked at your scene and have made the following observations. For outdoor rendering, use Path Tracing and not UHD cache. The fraction value of the leaves should be lowered to something around 20% in the translucency setting. When using alpha maps in the opacity channel, ensure to enable "clip" in the material settings. We hope that helps and good luck with the rest of this project. ;)

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=27268.0;attach=117238;image)