I get this question a lot. I’m not sure what’s the best way or most accurate way of doing this but I can tell you how I do it. This is a mini #tutorial - #houdini #fluid #simulation #vfx @sidefx 🧵
https://twitter.com/folpatte/status/1490713316955758596
I make 90% of these in a SOP solver and don’t use the bigger solvers like flip or pyro. Basically I started this one by making a simple motion. Don’t remember what exactly but say making particles move towards the center.
Then I convert that v to vdb field, I usually use the attrib rasterize for that. then I use the vdb non-divergent to make that field non divergent.And then transfer than v field to points. I use wrangle I think you can use the vdb node,I think vdb advect points if you want.
The other reason I use wrangle is because I add that v to the existing v, and then add that to P and you have a very basic version of particle fluid system. Again, this is only the very very basic version of my setup, I’m sure there are other ways that are more efficient and
Probably easier too. But that’s how I do it.
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