Javier Verdugo

So I realize that it's possible to take the point Cd using Mantra.

Is it possible to do the same thing in Redshift, or if not? Is there any work around to make it work?

So my idea is to create a few clouds and then copy them randomly via Copy To Points.

What I want is to give the clouds the color based on the target points.

I get a nice result in the viewport, but rendering in Redshift has no color data.

I am aware I don't have the color channel for volumes. My question is, Can I transfer the color from the viewport and transfer it to the volume color channel, after the Copy to Point node?

Attaching reference image and scene.

Hopefully there is a workflow.

Hi guys,

sorry for my dely on the reply… Today internet was offline in the office. Thanks for your replys.

JordanWalsh
You cant generate a vel from just the fog volume, it makes no sense. You will need the original particles with a v attrib already calculated then just add the v attribute on the VDB From Particles node, or use a volume velocity node to create the vel from your points.

Ok I see! thanks

Now I have another problem, I have create vdb from particles, I add the velocity att here, then I connect a cloud noise but the velocity is lost here… I suppose this node is incompatible with this workflow right?

jsmack
One of the features announced in 16.5 is volume optical flow, which can compute a vector field from a sequence of volumes or images.

Wow! that's sound amazing. Is there a tutorial to see how to use it properly?

Thanks for the info!