Delete volume by mesh growth

[Yon]

greets,

I am making ice grow over a fireball. In the attached hip the mesh (ice) growth is covered. But the volume still remains. How can I delete this volume where the mesh is, as it grows?

The mesh is grown by deleting the red channel, that is controlled by a ramp. You can see the animated flags on the ramp. I tried the same technique on the volume , but inverse = does not work. Now Im trying stuff with a volume ramp with the same keyframes as the ramp driving the mesh.

Thanks for any help
 

Volume_Growth.hipnc

[fencer]

you mean that?

 

Volume_Growth_v002.hipnc

[Farmfield]

You can do it like this - but I would set it up like I have on the right, use VDB's from the start, then create an intersection of the pyro at current frame, combine and mesh them. Well, you see how I set it up.

 

Volume_Growth_FFv1.hipnc

Edited June 24, 2016 by Farmfield

[Atom]

Those are both pretty cool example files!

[Yon]

Thanks for your replys,

Farmfield your example on the right is perfect, the mesh does also not continue to deform.

[Farmfield]

Did some additional tweaks and cleaned it up. Link to the scene file in the description.