Support us on Patreon: It finally happened – our dear friend Simon Fiedler () agreed to record a guest tutorial for us. He decided to share one of his production tricks for controlling particles: Building a swirly vector field to advect particles. Although it looks organic and natural, it’s highly controllable using a few basic vector math hacks. Enjoy! 00:00 - Intro 00:25 - Creating The Guide Geometry 03:37 - Building The Velocity Volume 04:04 - Theory: Cross Product 06:58 - VOPs Math 10:33 - Visualizing The Velocity Field 13:20 - Spawning Particles 14:01 - Customizing Our POPnet 17:55 - Animating The Guide Geometry 19:56 - Adding Curve Geometry 22:37 - Spawning Particles Away From Surface 23:32 - Final Words Download Project File:
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