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  • Particles with attached geometry (such as PFlow particles using a Shape Instance operator) will act like standard geometry obstacles and will push the fluid by default, as long as their Solid Phoenix property is enabled.
  • Particles without geometry (even PFlow particles with a plain Shape operator) will need to be attached to a Source in order to interact with the fluid in any way.
  • Particles without geometry can emit fluid using their shape and size using the Source's Particle Shape and Custom Prt Size options.
  • Particles without geometry will not affect the fluid's motion by default, so you need to enable Motion Vel. explicitly if you need this effect.
  • If Motion Vel. is enabled, the fluid emitted by a particle may refuse to leave the particle shape area and continue to move together with the particle, because it will have the same velocity.

Modifiers | dmodvel – Discharge Modifiers can be attached here in order to affect the Motion Vel. parameter.

Polygon ID | poly_id – Only the polygons with the specified ID of the emitter geometry will emit the fluid.

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