Exploring Different Techniques
This tutorial explained the volume deform node and how it can be used to manipulate pyro.
These are my tests with the volume deform node. It’s pretty versatile, but it’s a very heavy node and takes a long time to cache. The results are nice, but I struggled getting the look I wanted.
This tutorial explained how to manipulate pyro with a curve and the gas curve force node.
These are the test I did with this method.
Velocity field of curve controlling pyro.
A bezier NURBS curve controlling shape of pyro.
Velocity field of curve controlling pyro.
A bezier NURBS curve controlling shape of pyro.
Ideally, I would like to find a way to invert the pyro to get the desired shape. The way this method works is the pyro forms around the curve instead of following the curve.
This test is a combination of my first test from this blog post and gas curve force. Although pyro is still being generated from the entire grid, the pyro that is following the curve is the closest I’ve gotten to my reference thus far. I’m wondering if I can somehow use an alpha to mask out the pyro that doesn’t follow the curve.
Reference
3D Rigging & Look Development 
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