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Particle-Particle Collision Affector

Particle-Particle Collision Affector

Updated: 17 Feb 2025

Allows particles to collide with each other.

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Example .dfx

Method #

This node allows the particles to collide with each other while simulating, with a defined collision radius. Combined with the Particles To Point Geometry node, and a similar collision radius/sphere size, it is possible to simulate simple ball physics between the particles.

Parameters

These properties control the core behaviours of the node.

ParameterDetails
Particle Collision Radius Radius around a particle in which it will calculate colliding with others particles.
Collision Velocity Scale Scales the velocity of the particle after a collision so they can be made to slow down.
Collision Softening Reduce the impact of collisions between particles.
Dimension Choose whether the effect is 2D or 3D.
Simulation Steps Duration of each calculation step, controlling the precision and speed of the simulation.

Inputs

NameDescriptionTypical Input
Affected EmittersChoose which particle emitters can be affected by the affector.Primitive Emitter
WeightsAdd a particle weight node to vary the node’s effect on the particle system.Noise Weight
Transform ModifiersApply the transforms of another node to this node.Null
Target NodeModifiy the rotations of the node to always direct the z axis towards the input.Null
Local Transform OverrideApply the transforms of another node to this node, relative to its parent.Null