From the course: Houdini: Particles
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Create trails 1
- [Instructor] Alright so now we've cached out our particles, I'm gonna open up the parameters, make sure load from disc is on, go down to the group delete here and let's playback our sim. And cool we've got this really pretty languid particle system that is emitting from the leading edges of our trails here, our little bird. So what we're gonna do is we're gonna start making this into actual lines and then refining those lines to be the way we want them to be. So first off we're gonna make an add and this is gonna be the object that turns these points into lines. Because we have our PNT attribute that if we remember was created on the initial source points and then basically got propagated to every particle that emitted from those points. So we can use every particle that has that same variable value and we can connect all those together. So if I go to my geometry spreadsheet, let's highlight this, you see under PNT if I sort by that I have a number of points that all share zero and…
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Contents
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Scene overview2m 7s
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Create a particle source object1m 6s
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Create particle sim1m 48s
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Modify POP Source node1m 47s
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Create volume noise3m 45s
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Add POP Advect by Volumes3m 41s
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Add POP Color51s
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Particle result: Cache particles3m 2s
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Create trails 16m 42s
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Create trails 24m 53s
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Create color and alpha 14m 18s
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Create color and alpha 23m 42s
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Create pscale2m 32s
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Final prep2m 27s
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Shader overview2m 52s
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