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Delete volume by mesh growth

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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

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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 by Farmfield

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Those are both pretty cool example files!

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Thanks for your replys,

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

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

 

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