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Motion Blur with Explosia Xparticles

Posted: Thu Jul 21, 2022 10:15 am
by Mikla
Hi there,

What's the correct procedure to get velocity data from the cached explosia volumes in order to create motion blur? In the cache object i'm including the vel data but when I load the vdb in the octane vdb loader it doesn't show the velocity data. Only Heat, fuel and density.

Thanks.

Re: Motion Blur with Explosia Xparticles

Posted: Mon Jul 25, 2022 7:59 am
by bepeg4d
Hi,
cannot check now, but Xparticles seems to create only a unique 'vel' channel while VDB Loader is expecting to have 3x velocity data, one per axis:
E1F1E7A6-3B9B-40FC-BF15-6FD58EA737CB.jpeg
https://docs.otoy.com/cinema4d/VDBLoader.html

ciao,
Beppe

Re: Motion Blur with Explosia Xparticles

Posted: Mon Jul 25, 2022 9:50 am
by Mikla
Ah right. So it's not possible to create motion blur inside octane then.

Re: Motion Blur with Explosia Xparticles

Posted: Mon Jul 25, 2022 10:08 am
by aoktar
Mikla wrote:Ah right. So it's not possible to create motion blur inside octane then.
Probably not directly with this form. But put a scene then we can check for a solution