Grain
The Grain effect emulates the effect that real-world cameras produce where small particles in the camera’s film give the image a coarse, unprocessed effect. The Grain effect available in Unity is based on a coherent gradient noise.

Properties
| Property | Function |
|---|---|
| Colored | Enable the checkbox to use colored grain. |
| Intensity | Set the value of the Grain strength. Higher values show more visible grain. |
| Size | Set the value of the Grain particle size. |
| Luminance Contribution | Set the value to control the noisiness response curve. This value is based on scene luminance. Lower values mean less noise in dark areas. |
Performance
Disabling Colored will make the Grain effect run faster.
Requirements
- Shader Model 3
See the Graphics Hardware Capabilities and Emulation page for further details and a list of compliant hardware.