Attract
Pull particles toward an object's origin, or push them away with a negative strength, fading out at a reach.
Pull particles toward an object. Negative pushes away.
- Add it
- EventAdd OperatorForcesAttract
- Sends on
- Nothing: it has no wire.
- Influence
- Yes: it does as much as a value says, particle by particle (0 none, 1 all of it).
When to use it
- Drawing particles in: dust sucked into a vortex, sparks pulled to a wand, a swarm gathering.
- Pushing them away: a negative Strength makes a repeller, for a shockwave or particles parting round a moving object.
Attract pulls; particles keep their speed and overshoot, swinging round and back like a planet. To have them settle on a place, use Goal or Surface Force.
Settings
As the flow editor’s sidebar shows them. Changing any of them marks the bake old; those marked Keyframable can also change through a bake.
One of the flow’s number values, to weigh it by, particle by particle. Empty for all of it, on all of them. See Influence.
The pull is toward the object's origin, wherever it goes. It's just as strong far away as near, unless Reach is set: then it's at full Strength at the origin and fades in a straight line to nothing at the reach. Keyframe Strength to switch it on and off.
Works with
- Drag stops particles swinging round forever: with it they spiral in and settle.
- Swirl on the same object for a whirlpool.
- Influence: a value can make some particles feel it more than others.
Problems you may see
The editor raises no problems of its own for Attract.
Related
- Swirl, Goal
- The Forces panel: Attract without a flow