Generator node
Flow Field
The vector field a connected Flow Map is using this frame, as an image: Color Wheel (hue = direction, opacity = strength) for visuals, or Raw RG (direction packed around 0.5) to composite, record, or drive another Flow Map's Mask input.
Inputs
| Port | Type | Default |
|---|---|---|
| ImageCable a Flow Map's Image output here — this node shows the motion field that map is using right now. | image | — |
| EnableOff clears the output to transparent. | bool | true |
| StyleColor Wheel paints direction as hue and strength as opacity, for eyes; Raw RG packs the vectors around mid-grey so another Flow Map can read it back. Out-of-range values snap to the nearest. | int | 0 |
| GainBrightens weak parts of the field so they become visible. At least 0; 1 is faithful, 2…5 exposes the quiet areas. | float | 1 |
Outputs
| Port | Type |
|---|---|
| ImageCable a Flow Map's Image output here — this node shows the motion field that map is using right now. | image |
| Width | float |
| Height | float |
How It Works
Flow Field exports the vector field a connected Flow Map is using this frame as an ordinary image. Two styles: Color Wheel (hue is direction, opacity is strength) for visuals and debugging, or Raw RG (direction packed into red and green, 0.5-centred) for compositing, recording, or driving a second Flow Map.
Gain scales what is drawn without touching the field itself.
Use Cases
- See the field — put the hue wheel on a Canvas layer while tuning a Flow Map's style.
- Chain fields — feed the Raw RG image into another Flow Map's Mask input.
- Export motion — record the field as video and reuse it later as a mask.
Tips
- Raw RG is the one to composite or store; Color Wheel is for eyes, not for maths.
- The field is exactly what the Flow Map samples — if the motion looks wrong, this node shows you why.
Open Flow Field in the interactive catalog →
Flow Field is one of 381 nodes in Grafit Pro.
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