From the course: TouchDesigner & Unreal: Interactive Controllers

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Particles: Instancing, part 2

Particles: Instancing, part 2

From the course: TouchDesigner & Unreal: Interactive Controllers

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Particles: Instancing, part 2

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- [Instructor] Alright, so we've got our basic Particle Systems built, and there's just a few parameters we're going to change on that. And then we're going to add a Point SOP on the end of this to give the system a bunch more attributes that are going to help us when we actually go to render these as geometry. So first thing we want to do on the Particle SOP here, is I want to turn on Remove Unused Points. You can see up to this point when we move our finger around on the iPad, our particles are moving but when I stop, the particles just sort of stay there even though they're dead. If we turn Remove Unused Points on, then those will go away and you can we just kind of got a little bit of a jittery mess here. But there's a Particle Systems but really no actual points. So if I start moving my finger around there, we get particles and as I let go, they go away. Awesome, that's the behavior we want. We don't have to worry about this state, that's not going to affect us later on. Cool. So…

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