Audio node
Motion Mod
Turns point-cloud motion into musical control: Energy, Impact, Height, Spread -- and can shape a Notes stream's velocity and pitch. Add inside an Audio Modular System.
Inputs
| Port | Type | Default |
|---|---|---|
| EnableTurns the motion analysis off. Off passes any incoming note stream through untouched and parks the control outputs at rest. | bool | true |
| PointsThe point cloud whose movement becomes music. Cable Track Points, Geometry to Points, hand or face landmarks, or any other cloud. | structure | — |
| VelocitiesOptional matching velocity stream for the same cloud, used for a cleaner Energy reading. Without it, energy comes from comparing the cloud with its previous frame. | structure | — |
| NotesA note stream to shape (128 bins, one per MIDI note, value = velocity). With nothing connected the control outputs still work; only the shaping has nothing to act on. | float | — |
| SmoothHow sluggishly Energy, Height, Center X and Spread follow the cloud. Clamped to 0…1, from instant to roughly a two-second settle; Impact stays snappy either way. | float | 0.3 |
| Velocity ModHow much cloud motion drives note velocity — a lazy cloud plays softly, a storm plays hard. Clamped to 0…1; at 0 velocities pass through unchanged. | float | 0.7 |
| Pitch ModHow much the cloud's height bends the whole note stream up or down. Clamped to 0…1; 0 leaves pitch alone. | float | 0 |
| Pitch RangeHow far that height bend reaches, in semitones. Clamped to ±24; notes pushed past the playable range simply drop out. | float | 12 |
Outputs
| Port | Type |
|---|---|
| NotesA note stream to shape (128 bins, one per MIDI note, value = velocity). With nothing connected the control outputs still work; only the shaping has nothing to act on. | float |
| Energy | float |
| Impact | float |
| Height | float |
| Center X | float |
| Spread | float |
| Count | int |
How It Works
Motion Mod turns point-cloud motion into musical control. It reads a cloud and reports Energy, Height, Center and Spread, plus a fast-decay Impact that spikes on sudden movement. It can also shape a Notes stream in passing — velocity from energy and impact, pitch from height — so a hand raised makes the phrase brighter and louder without any extra wiring.
Use Cases
- Body as expression — Vision landmarks or Track Points into the instrument's dynamics.
- Dynamics from visuals — a particle cloud's own agitation drives the music.
- Modulation source — use the four outputs anywhere, not just for notes.
Tips
- Smooth decides whether the control feels like a gesture or a twitch.
- Impact is the one to trigger events with; Energy is the one to ride.
Open Motion Mod in the interactive catalog →
Motion Mod is one of 381 nodes in Grafit Pro.
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