In this video, Scott Pagano gives an overview of a custom material provided to render your particle trails. Learn techniques for rendering particle trail geometry in Houdini.
- [Instructor] Alright so now we're just going to…peak into our shop network here…and we're gonna go into our line material.…And I'm just gonna show you what we have going on here.…You can see in this material,…we're just bringing in the CD in the alpha parameters.…We're multiplying CD by alpha,…basically just to pre-mult that.…And then we're feeding the output of that line…into the CF input of the surface output.…And the alpha gets its float value turned into a vector…and then that's going into the opacity input…of the surface output.…The only other little bit of stuff going on here…is that we're taking the output of this multiply one,…feeding that into a PBR omission…and then into a surface exports basically to generate…a PDSF value for us that we can feed into…the F input of the surface output.…
And what this does is this allows us to render…with the PBR renderer.…And this is not some complex shader,…we just want kind of a clean, graphic missive flat look.…But this allows us to then integrate…this kind of graphic thing with any other PBR shader.…
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: Shader overview