Learn about spawning foam particles from a fluid simulation.
- [Narrator] Foam is an additional Bifrost property…container that adds secondary particles to a…liquid simulation.…It comes with its own shape node,…and the particles can render as a surface or a volume.…I do recommend that you cache the liquid before…creating foam.…You can create them both at the same time,…it's just going to calculate very slowly.…If we go to my current Bifrost liquid properties note…and it's attributes.…If we go into the cache section,…caching, liquid cache.…
We'll see that I have a cache in place from a previous…exercise, the beginning of chapter three,…0301 write cache.…If you haven't done this exercise,…and don't have the cache files on your hard drive,…you want to build the cache of this scene before proceeding.…I've also disabled all of the nodes except for the…primary container nodes and the Bifrost liquid properties.…If we go into any of these others ones,…they've been disabled.…
With those nodes disabled,…we can go ahead and press play in the time controls,…and it may hiccup once it starts loading the cache,…
Author
Released
11/8/2017- Bifröst basics
- Analyzing the node structure
- Emitting from a polygon mesh
- Colliding with a polygon mesh
- Adding velocity, friction, and drag with motion fields
- Optimizing space and time accuracy
- Caching simulations
- Meshing and exporting liquids
- Render-time meshing in Arnold
- Applying channel data to Arnold shaders
- Generating foam from a liquid
- Rendering and shading foam in Arnold
Skill Level Advanced
Duration
Views
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Introduction
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Welcome51s
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Using the exercise files3m 3s
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1. Simulating a Liquid
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Meeting prerequisites2m 57s
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Understanding Bifrost3m 46s
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Choosing Bifrost options7m 20s
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Setting scene preferences3m 34s
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Laying out the scene3m 34s
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Emitting liquid from a mesh7m 39s
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Colliding with objects9m 25s
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2. Fine-Tuning a Liquid Simulation
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Tuning time steps6m 8s
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Tuning transport steps3m 39s
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3. Caching and Meshing
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Writing a user cache7m 38s
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Meshing the particles10m 28s
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Caching a mesh to BIF files5m 43s
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Exporting to Alembic5m 36s
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Setting an initial state3m 58s
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4. Shading a Liquid
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Rendering meshed voxels4m 52s
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Building a layered shader6m 44s
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Mapping specular roughness7m 59s
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5. Simulating Foam
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Adjusting foam attributes5m 12s
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Caching foam4m 4s
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Rendering foam in Arnold4m 7s
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Conclusion
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Next steps1m
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Video: Generating foam from a liquid