topic Re: bifrost aero to .arnold stand in in Bifrost Forum

bifrost aero to .arnold stand in

thomaslisle1309 — Mon, 31 Oct 2022 17:23:05 GMT

hi is it possible to export a single frame of a cached aero sim to an arnold standin .ass. I can see arnold alembic but that doesn't support volumes

any ideas anyone

Re: bifrost aero to .arnold stand in

morten.bojsen-hansen — Tue, 01 Nov 2022 14:36:26 GMT

Using the Arnold menu, Arnold --> Volume (aiVolume) is the way to go for volume rendering. That procedural requires a .vdb file. See https://docs.arnoldrenderer.com/display/A5AFMUG/OpenVDB+Workflow .

While Arnold can translate a volume through MtoA, it's currently faster (although we hope to improve this!) to render with .vdb, so I would recommend exporting to and rendering a .vdb file for now.

Re: bifrost aero to .arnold stand in

thomaslisle1309 — Thu, 03 Nov 2022 11:11:58 GMT

I will give it a go Im not sure how the colours will work, if they are derived from. CPV in bifrost ?

many thanks thomas

Re: bifrost aero to .arnold stand in

thomaslisle1309 — Thu, 17 Nov 2022 10:55:10 GMT

The arnold node has changed and the website is out of date re vdb, I sent a sample VDB from bifrost to arnold support so they could check it - as it wasn't working as expected. cheers thomas