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- If you want to use vorticity you have to activate → Fluid > Fluid > Compute Vorticity before the simulation, otherwise the channel will not be available.
- The "Weight" channel is makes only senses if the simulations contains at least two emitters or fluid containers, and requires a slightly different → workflow.
- The "velocity X|Y|Z" vertex maps cannot be adjusted, and they are required for motion blur effects.
The complete selection of channels with the "Smoothing Length Scale" value to blend materials.
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