Add noise

Old network

As of Houdini 20.5, use Copernicus nodes instead of Compositing nodes. Though both networks still exist, the Compositing network is now designated as COP Network - Old. The Compositing network and its nodes will be deprecated and then removed in a future Houdini release.

To do this…	Use this operator
Noise	Noise COP Can create different types of noise, including completely random pixels, and more continuous noise like Perline, Sparse, and Alligator. Useful for adding variation to mattes, either by multiplying the matte, or adding to/screening the matte.
Film grain	Grain COP

To do this…

Use this operator

Noise

Noise COP

Can create different types of noise, including completely random pixels, and more continuous noise like Perline, Sparse, and Alligator.
Useful for adding variation to mattes, either by multiplying the matte, or adding to/screening the matte.

Film grain

Grain COP

Compositing

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