ParticleFieldForce
The ParticleFieldForce node allows you to attract or repel particles to or from a field. You can use an animated or still axis expression-linked to the position value, or a value you have chosen to enter manually.
Note: This is a LABS node, indicated in Nuke with the tag: 
LABS nodes are experimental and not intended to be used for production.
Inputs and Controls
|
Connection Type |
Connection Name |
Function |
| Input |
fld |
An input for connecting to field that you wish to attract or repel from. |
| particles | An input for connect particles. |
|
Control (UI) |
Knob (Scripting) |
Default Value |
Function |
|
ParticleFieldForce Tab |
|||
| display | display | unchanged |
Adjust the display characteristics of the particles. These settings don’t affect the render output of the scene; these are for display purposes only in the 3D Viewer. • off - hides the particles. • wireframe - displays only the outlines of the particle. • solid - displays all particles with a solid color. • solid+wireframe - displays the particles as solid color with the particles outlines. • textured - displays only the surface texture. • textured+wireframe - displays the wireframe plus the surface texture. • unchanged - doesn't change the particles display mode. The Viewer can override this setting. |
| selectable | selectable | on | Turn off to prevent picking with the mouse in the Viewer. |
| render | render_mode | unchanged |
Sets how the particles will render. This control is independent from the display selection, but has the same settings. |
| Operation | attribute | Force | Specify the type of operation to affect the particles. |
| Strength | strength | 1 | Sets the strength of the attraction, measured in inverse square. A negative value is an attraction and a positive value is a repulsion. |