Documentation
Gamma / Exposure
VFX Loom 1.0 reference for the Gamma / Exposure node.
Color
processing.gammaExposure 
Overview
Applies safe gamma or linear exposure to straight-alpha RGB.
Gamma uses a power curve; Exposure uses linear stops. Alpha is copied exactly and Factor blends original RGB with processed RGB.
- Category
- Color
- Internal ID
processing.gammaExposure- Version
- VFX Loom 1.0
Inputs
| Input | Type | Required | Default | Meaning |
|---|---|---|---|---|
| in | Image | Required | — | See the overview for the node's documented behavior. |
Properties
| Property | Type | Default | Animatable | Range / options | Effect |
|---|---|---|---|---|---|
| Mode | Enum | Gamma | Not declared | Gamma · Exposure | Selects the mode behavior; each option changes the operation described in the overview. |
| Value | Scalar | 0 | Yes | Hard -4..4 · UI range: soft | Animatable control; changing it over time varies the node response. |
| Factor / Influence | Scalar | 1 | Yes | Hard 0..1 | Animatable control; changing it over time varies the node response. |
Outputs
| Output | Type | Meaning |
|---|---|---|
| out | Image | The production node output described by the overview. |
Usage
In practice
- Use Gamma / Exposure when the graph needs Applies safe gamma or linear exposure to straight-alpha RGB.
- Gamma uses a power curve; Exposure uses linear stops. Alpha is copied exactly and Factor blends original RGB with processed RGB.
- Use it after a source or scalar field, then send the adjusted image or colour value to a downstream composite or material stage.
Notes / limitations
- No step is declared for Value or Factor.