Smoky Particle Feedback FX in TouchDesigner

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Feedback, when combined with particle systems, can generate some incredible visual results. With a few operators, you can generate simple trails that trace the trajectory of each particle to smoke-like clouds that look as though they’ve been emitted by the particles as they move.

In this video, Jack DiLaura walks you through creating a feedback post effect for a particle system that uses the movement of the particles themselves to generate billowing, smoky trails. You’ll work through the basic set up of a particle generator SOP network, using particle attributes to control color and opacity, as well as working with displacement and feedback to take the scene well beyond its initial state.