noise force field
The noise field generates a noise to influence particles inside the Noise Field Source. 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 |
|
Is the Noise field currently active? |
True |
attenuation |
|
Attenuation is how much the effect of the field decays from the ‘center’ to the ‘boundary’ of the Noise Field Source. |
1.0 |
considerVelocity |
|
Consider velocity of the particle when calculating noise. |
False |
frequency |
|
Value changes position to increase or decrease the noise sample. |
1.0 |
magnitude |
|
The amount of force to apply to the particles through the noise. |
1.0 |
octaves |
|
The amount of times the noise is sampled. |
5 |
pointcloudPoints |
|
Input pointcloud points |
[] |
pointcloudNormals |
|
Input pointcloud normals, one for each point |
[] |
pointcloudPointRadius |
|
radius of points in cloud |
1.0 |
particles |
|
Input particle data, including position and impulse, and if considerVelocity is true, velocity. |
|
$accelTree |
|
Collision geometry acceleration structure |
|
prim |
|
Input geometry prims |
|
primPath |
|
Input geometry prim paths |
Outputs
Name |
Type |
Description |
Default |
---|---|---|---|
particles |
|
Output particle data, including position and impulse. |