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Fluid

Simulation

Spawn a fluid simulation bound to this layer's silhouette.

Like Particles, this spawns a linked layer rather than modifying this one. The fluid solver uses the source silhouette as an emitter or an obstacle.

What it creates
sourcesilhouettenew linked layer
The source layer is unchanged. The settings live on the new layer, and it tracks the source's live position every frame — so animating the source carries the simulation with it.

When to reach for it#

  • Smoke, ink in water, flame.
  • Liquid that interacts with a shape.

Things that catch people out#

Simulations accumulate state

Fluid is not a pure function of time, so scrubbing backwards re-runs it from the start. Expect a pause on long compositions.

See also#

simulationFluid — full reference→

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