Rasagar/Library/PackageCache/com.unity.render-pipelines.high-definition/Documentation~/Post-Processing-Film-Grain.md

Film Grain

The Film Grain effect simulates the random optical texture of photographic film, usually caused by small particles being present on the physical film.

Using Film Grain

Film Grain uses the Volume framework, so to enable and modify Film Grain properties, you must add a Film Grain override to a Volume in your Scene. To add Film Grain to a Volume:

1. In the Scene or Hierarchy view, select a GameObject that contains a Volume component to view it in the Inspector.
2. In the Inspector, go to Add Override > Post-processing and select Film Grain. HDRP now applies Film Grain to any Camera this Volume affects.

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Properties

Property	Description
Type	Use the drop-down to select the type of grain to use. You can select from a list of presets that HDRP includes, or select Custom to provide your own grain Texture.
Texture	Assign a Texture that this effect uses as a custom grain Texture. This property is only available when Type is set to Custom.
Intensity	Use the slider to set the strength of the Film Grain effect.
Response	Use the slider to set the noisiness response curve. The higher you set this value, the less noise there is in brighter areas.