Krion Posted December 8, 2019 Share Posted December 8, 2019 (edited) Hi guys, I've started learning particles and I now these particles beautifully advected by a curl noise. I like that it stays kinda within the same source shape by the curl noise. But when I want to prevent the particles from flocking together with a POP interact node, they move away from each other, but also move outside the shape.. So I tried to keep them inside the (peaked) shape with POP Attract and Field Force, but that didn't really work. And then I found this old odforce post talking about using sdf for that, but the example hips were too old to see what's going on. So I was hoping maybe someone could enlighten me on how this SDF trick is done, or maybe any other for directing particles with geo. If you want, you can take a look at the hip: howToKeepInside.hipnc Thanks in advance! Edited December 18, 2019 by Krion Quote Link to comment Share on other sites More sharing options...
KarlRichter Posted December 18, 2019 Share Posted December 18, 2019 (edited) Attached you will find an example of one way to use a volume to contain your particles: howToKeepInside_v02.hipnc Edited December 18, 2019 by KarlRichter 1 Quote Link to comment Share on other sites More sharing options...
Ultraman Posted December 18, 2019 Share Posted December 18, 2019 hi /; i try keep point inside the outer force model ./ i read normal of model with primuv and added particle velocity to change direction ./ howToKeepInside.hipnc Quote Link to comment Share on other sites More sharing options...
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