Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: celmar on 2021-12-16, 15:01:14

Title: volumegrid
Post by: celmar on 2021-12-16, 15:01:14

Hello! I have several times problems with the volume grid, and "open vbd"...as in the attached image, the bounding box is perceptible, and the cloud of points touching one or several walls, causes a flat... How to solve this?

Title: Re: volumegrid
Post by: Beanzvision on 2021-12-16, 16:53:09

I guess the workaround here would be to avoid vdb's intersecting with other objects.

Title: Re: volumegrid
Post by: celmar on 2021-12-16, 17:43:42

yes, I agree; but how?   you see, you get a Volume Grid, then in object you enter a vdb; where do you resize , inside the "volume grid", the point cloud?

Title: Re: volumegrid
Post by: celmar on 2021-12-16, 21:03:07

I dsidn't understand, before; nothing intersect, it's just the ghost of the bounding box, when the point cloud intersect...

Title: Re: volumegrid
Post by: celmar on 2021-12-17, 09:20:35

just another example... It's a pack buyed on art station, open vbd, and all the clouds included are "fighting" with the bounding box; same with a lot (not all) of free samples of vbd...  What's the problem???

Title: Re: volumegrid
Post by: mmarcotic on 2021-12-17, 09:43:10

Are you sure this vdb file is correctly generated? Usually the bounding box is larger than the actual effect.

Thanks,
Jan

Title: Re: volumegrid
Post by: celmar on 2021-12-17, 10:17:29

well, how I can be sure? it's a pack, sale on artstation; there are also different free samples with  I had the same problem...

Title: Re: volumegrid
Post by: celmar on 2021-12-17, 10:20:26

can you point some packs which are ok with corona grid?thank you!!!

Title: Re: volumegrid
Post by: Beanzvision on 2021-12-17, 11:18:13

Are you able to send us your scene so we can check it? If so, please feel free to use our private uploader: https://corona-renderer.com/upload

Title: Re: volumegrid
Post by: celmar on 2021-12-17, 14:51:34

I'm going to upload a file, but I've just noticed something: in the vbd folder, there were many files (0001-002-003-etc); if I delete all the files, leaving only the first one, the cloud installs correctly; so it would come from uploading the files to animate the
cloud?

Title: Re: volumegrid
Post by: Beanzvision on 2021-12-17, 15:41:32

Possibly, there is an import option to disable animated .vdb files.

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=35128.0;attach=158375;image)