direction force field

This field will move particles in a direction based on the direction field shape position, rotation and scale. Particles outside of the field will not be affected. ATTENTION!: omni.particle.system.core is currently undergoing extensive (breaking) changes. Please be aware that systems built with the existing extension will need to be rebuilt in the USD Composer 2023.2 release.

Installation

To use this Node, you must enable omni.particle.system.core in the Extension Manager.

Inputs

Name

Type

Description

Default

active

bool

Is the direction field currently active?

True

attenuation

float

Attenuation will reduce the amount of energy in the direction.

1.0

magnitude

float

The amount of force to apply to the direction.

1.0

pointcloudPoints

pointf[3][]

Input pointcloud points

[]

pointcloudNormals

normalf[3][]

Input pointcloud normals, one for each point

[]

pointcloudPointRadius

float

radius of points in cloud

1.0

particles

bundle

Input particle data, including position and optionally impulse.

$accelTree

bundle

Bounding geometry acceleration structure

prim

bundle

Input geometry prims

primPath

path

Input geometry prim paths

Outputs

Name

Type

Description

Default

particles

bundle

Output particle data, including position and impulse.