In this video, Scott Pagano explains how to use the POP Kill node to remove particles that intersect with guide geometry. Learn techniques for removing particles from your simulation with the POP Kill node in Houdini.
- [Instructor] Next up, we're gonna use two POP Kill nodes…just to kill any particles that go outside…what we wanna see.…So what I'm gonna do is, I'm gonna go POP Kill.…And first, lemme close…this parameter window up just a little bit.…We're gonna go use the bounding part…of the POP Kill options here.…We're gonna change the bounding type to bounding object.…And I'm gonna enable it.…And you can see, I have a path here to grab a SOP.…So I'm gonna go up to our ground,…and you can see, we have an out four particle Kill SOP…that we'd created.…
And this was the ground version that was just…slightly transformed down on the y.…So, I'm gonna say accept.…And you can see, we have all these…different guides going on.…So I'm gonna go up to POP collision detect…and then turn off its guide.…So now, we're just looking a the guide for the POP Kill.…If I turned that off, we'd see nothing.…Okay, so now, let's look at the…output of the simulation.…So now, anything that now intersects…with this POP Kill mesh…will just get deleted.…So, we have some stuff falling through,…
Author
Scott Pagano
Released
6/5/2017- Working with sprites
- Adding POP Color and POP Wind
- Creating a particle source object
- Creating volume noise
- Creating trails
- POP Collision Detect
- Instance node
Skill Level Advanced
Duration
Views
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Introduction
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Welcome1m 26s
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Exercise files47s
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Intro to particles2m 23s
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1. Sprites
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Display options2m 16s
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Scene overview2m 32s
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Create particle sim4m 8s
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Modify POP Source node2m 38s
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Add POP Color and POP Wind4m 20s
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Add POP Sprite3m 44s
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Create pscale4m 31s
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Create alpha3m 15s
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Create color2m 41s
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Final prep3m 55s
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Shader overview2m 35s
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2. Trails
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Scene overview2m 7s
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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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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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3. Impacts
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Scene overview3m 16s
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Create particle sim3m 30s
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POP Source nodes3m 29s
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POP Collision Detect3m 19s
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POP Drag, Wind, and Color2m 16s
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POP Kill2m 45s
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Cache particles3m 20s
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Create Cd and alpha 14m 25s
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Create Cd and alpha 24m 46s
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Final prep2m 32s
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Final render2m 20s
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4. Instances
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Scene overview1m 1s
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Create particle sim1m 17s
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POP Source nodes1m 51s
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POP Wind: Down2m 8s
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POP Wind: Noise1m 36s
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POP Drag: Random1m 40s
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POP Drag: Age1m 33s
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POP Drag: Spin1m 41s
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POP Collision Detect1m 40s
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POP Kill1m 44s
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Cache particles2m 13s
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Process v 14m 57s
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Rotate N and up by v5m 1s
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Process v 22m 22s
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Create pscale3m 22s
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Create instance3m 2s
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Create Cd4m 50s
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Material SOP4m 30s
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Instance node3m 18s
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Final render2m 20s
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Conclusion
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Next steps1m 11s
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Video: POP Kill