solver
The solver node implements numerical integration of the underlying particles data at each simulation step. 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 Solver node currently active? |
True |
playbackEvaluation |
|
Simulate in runtime or animation playback mode. |
False |
playbackStartFrame |
|
The start frame of the simulation when in animation playback mode. |
0 |
playbackEndFrame |
|
The end frame of the simulation when in animation playback mode, or negative if no end frame. |
-1 |
aimInheritsVelocity |
|
Aim parameters inherit the velocity of the particle. |
True |
energyConservation |
|
Values less than 1.0 exponentially dampen velocities to this portion in one second, for example, in the absence of impulses, a value of 0.8 will reduce velocities by 20% every second. |
1.0 |
maxCount |
|
The Maximum amount of particles to spawn per cycle. -1 is no maximum. |
-1 |
outputToLocal |
|
If this is on, the particle data are written to outputs:particles. |
True |
particles |
|
Input particle data |
Outputs
Name |
Type |
Description |
Default |
---|---|---|---|
particles |
|
Output particle data |