Learn about applying friction and drag with a mesh.
- [Instructor] Friction and air resistance…are handled by the Bifrost motion field container.…The motion field is very versatile…and can generate multiple different properties…simultaneously.…We've only seen one property so far, which is direction.…Now we'll use the geometry property to simulate friction…and the drag property for air resistance.…We have one motion field in this scene,…and it's creating initial velocity for the fluid.…
If we go to its field direction section…in the attribute editor, we're applying…an initial velocity in positive Z.…We could do everything in this demo…with just this one motion field,…but to keep our sanity, let's use two different fields.…One for the initial velocity,…and one for friction and air resistance.…Rename the existing field before creating another one.…In the outliner, double-click bifrostMotionField1,…and let's rename it.…
We'll called it bifrostMotionFieldVelocity.…Just to ensure that your results are similar to mine,…let's set the motion field transforms precisely.…We can go to our four viewport layout,…
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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