How to create a pyro volume with velocity from geometry?

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Trying the new Pyro SOP here.

I have a sphere that I'm animating with Mountain.
I use Trail to create velocity for every point. Now I want to throw it into a pyro so the smoke inherites the velocity.

I tried with Pyro Source but it refuses to take the velocity attribute it just overwrites with the default one, at least when I fill points inside the mesh.
if I use Volume rasterizeattributes then I get the velocity but only on the surface.

Basically for an impact explosion I want to be able to animate the mesh, then fill the mesh with smoke that has velocity moving along with it.
Any tips would be appreciated.
Andreas
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You can Attribute transfer the velocity from the mesh onto the emitter points.

Cheers
CYTE
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CYTE
You can Attribute transfer the velocity from the mesh onto the emitter points.

Cheers
CYTE
Thanks that seems to work! How is the transfter done. I was just thinking I start with just having points on the surface of an object, but then the transfer has to figure out what to do inside the geom.
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