Brightness
Multiplies the brightness of every point in a frame by a single scalar. The simplest way to fade a frame in or out without touching its color, geometry, or path order.
Inputs
| Port | Type | Default | Range | Description |
|---|---|---|---|---|
| Frame | Frame | — | — | The frame to dim |
| Brightness | Scalar | 1.0 | 0–1 | Brightness multiplier. 1.0 is unchanged, 0 is fully dark |
Outputs
| Port | Type | Description |
|---|---|---|
| Frame | Frame | The dimmed frame |
Ideas
- Animate Brightness with a Phasor or Envelope to fade a clip in and out on a cue.
- Wire an Audio Input (Loudness mode) into Brightness for a frame that pulses with the music.
- Use as a master gate on a section of the graph: route the frame through Brightness before Output to gate the whole scene with one signal.
Tips
- Brightness is sampled once per frame, not per point. All points scale by the same factor.
- The node is a no-op when Brightness equals 1.0. It returns the input frame untouched, so leaving it in the graph has no cost.
- Values above 1 are clamped to 1; values below 0 are clamped to 0.
Related
- Colorize: apply a color while preserving source brightness instead of scaling it
- Laser Chase: per-laser brightness sweep, not a global multiplier
- Output: final transform after the frame is dimmed