Learn about storing liquid simulation startup conditions.
- [Instructor] Initial state is a very helpful feature…that allows you to store the start conditions…for a simulation.…I'm going to press Play in this scene…and allow the simulation to run…as I explain what's going on here.…Initial state is a one frame cache…that is loaded automatically…on the first frame of the simulation.…In this scene, I have had a very long run up…to the current state of the simulation.…After about 30 seconds,…we'll get to frame one and we'll be able to see…that there are a lot of particles in the shot.…
The particles that we see at first…are the Initial State conditions for the simulation.…As the simulation progresses, it becomes a live simulation…that's being calculated on the fly.…I did this in order to avoid a long run up…to the current frame…because it took tens of hours to calculate the simulation,…such that the particles made it all the way…down into the gully here.…This is a situation in which Initial State…is incredibly helpful.…
I'll hold down the Escape key and cancel the simulation.…
AuthorAaron F. Ross
- 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
1. Simulating a Liquid
2. Fine-Tuning a Liquid Simulation
3. Caching and Meshing
4. Shading a Liquid
5. Simulating Foam
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