Understanding Particle Systems

Particle systems are a means to manage the infinite possibilities encountered when controlling thousands of seemingly random objects in a scene. The particles can follow a tight stream or emanate in all directions from the surface of an object, for example. The particles themselves can be pixel-sized elements on the screen or instanced geometry from an object in the scene. Particles can react to forces called space warps, such as wind and gravity, and bounce off objects called deflectors to give them a natural flow through a scene. There is a wide range of options when you are animating particle systems, especially when you are trying to simulate real-world effects such as smoke or rain.

All particle systems have ...

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