Hi there,
I am trying to produce a velocity attribute from a volume sequence that was produced in CFD software and converted to .vdb (not converted by me) in order to render with motion blur.
I've tried a few things, including convertvdb to polygons and then using the trail node to compute velocity based on the geometry. However this doesn't work because the volume is re-meshed every frame and the polygons end up in totally different positions each frame. resulting in this mess when I visualise the ‘v’ attribute.
I just wondered if any one knows if it is possible to produce a velocity attribute when the volume itself doesn't carry anything other than its voxel values?
I'd be very grateful if you could help, thanks.
Compute velocity attribute from volume sequence that was created outside Houdini?
1366 2 0- Lemon_half_moon
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- jsmack
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