# Operator Subgraph asset

> Reference for a subgraph asset that packages operators together to use as a single operator.

A Subgraph is an Asset that contains part of a Visual Effect Graph. A Subgraph appears as a single Node that you can use in another Visual Effect Graph or Subgraph. An Operator Subgraph is a Subgraph that specifically contains a set of [Operators](https://docs.unity3d.com/Packages/com.unity.visualeffectgraph@latest/index.html?subfolder=/manual/Operators.html) packaged together to use as an Operator.

This Asset only works when you install the Visual Effect Graph package. For information on how to install the Visual Effect Graph, see the [packages documentation](/engine/6000.3/manual/packages-list/managing-packages-window/upm-ui-actions/upm-ui-install.md).

For information on how to use Operator Subgraphs, see the Visual Effect Graph [package documentation](https://docs.unity3d.com/Packages/com.unity.visualeffectgraph@latest/index.html?subfolder=/manual/Subgraph.html%23operator-subgraphs).