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translate density based on sdf?

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If you make a basic pyro sim, and cache it. So its just a plum of smoke.

Can I then put an arbitrary object in the middle of that smoke, a sphere for example, make an sdf, and use the gradient to displace the cached density?

For the effect I want to achieve, this would be a perfect way to go about it. I dont want to make a collision object, because I want something far more editable, and less physically accurate.

Any help in this direction would be greatly appreciated, thanks so much.


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