3D & SimulationParticles
Wind Effector
A directional push with noise-based gusting.
The Wind Effector blows particles along a direction, with gusts that come and go.
- Direction X / Y / Z and Strength
- Gust Spread, Gust Scale, Gust Speed
- Found in the node graph under Particles → Effectors
The image on the right is the example patch itself. Drag and drop it onto the app, or load it with File → Load, to open the full graph. The default wind blowing along +X.
Inputs and outputs
| Port | Type | Purpose |
|---|---|---|
| Effectors In | Effector | The previous effector in the chain, if any. |
| Field Image | Texture | A texture read by the Image field shape. |
| Origin Object | Surface | A Null to parent the effector to. |
| Effectors Out | Effector | Wire it into the next effector, or into the Particle System's Effectors port. |
Parameters
- Direction X / Y / Z (−1 to 1, default 1, 0, 0).
- Strength (0–30, default 3).
- Gust Spread (0–10, default 0.5), Gust Scale (0.01–2, default 0.3), Gust Speed (0–5, default 1).
- Lock Noise To World (default off).
- Particle Use Amount (0–1, default 1) — the share of particles this effector acts on. Two effectors with the same amount act on different particles.
- Speed Variance (0–4, default 0) and Speed Bias (−1 to 1, default 0) — scatter the force per particle.
Field
- Field (default off) — limits the effector to a region. Field Shape (Sphere, Box, Plane, Image), Field Size (default 3), Falloff (default 0.5), Inner Radius, Invert Field, Field Follows Mouse, and Image Channel for the Image shape. The Field Position / Heading / Pitch / Roll / Scale block places it.
Every slider has a per-parameter animation bar, so it can be animated, audio driven, or MIDI mapped.
Examples
Blown leaves — this with Gust Spread 3 and a Drag Effector.
Troubleshooting
Nothing moves. The effector's Effectors Out must reach the Particle System's Effectors port, directly or through the last effector in a chain.