Menu Path : Operator > Color > Color Luma
This Color Luma Operator outputs the luma (perceived brightness) of the input color.
The luma value of a color is useful in many scenarios, for example:
- You can use it to recolor particles and still maintain their original brightness.
- You can utilize it in the simulation itself and make the brightest particles move faster.
Note: Color Operators work on a per-particle level. To recolor the particle's texture on a per-pixel level, use Color Mapping in the system's output Context or create your own shader via Shader Graph.
| Inputs | Type | Description |
|---|---|---|
| Color | Color | The Color to calculate the luma for. |
| Output | Type | Description |
|---|---|---|
| luma | Color | The luma value of Color. |