Sub Graph Asset
Description
The Sub Graph Asset is a new Asset type introduced with the Shader Graph. A Sub Graph Asset defines a Sub Graph. This is different to a Shader Graph. You can create a Sub Graph Asset from the Project Window from the Create menu via Sub Graph in the Shader sub-menu.
You can open the Shader Graph Window by double clicking a Sub Graph Asset or by clicking Open Shader Editor in the Inspector when the Sub Graph Asset is selected.