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Edge
Description
An Edge defines a connection between two Ports. Edges define how data flows through the Shader Graph node network. They can only be connected from an input Port to an output Port.
Each Edge has a Data Type which defines what Ports it can be connected to. Each Data Type has an associated color for identifying its type.
You can create a new Edge by clicking and dragging from a Port with the left mouse button. Edges can be deleted with Delete (Windows), Command + Backspace (OSX) or from the context menu by right clicking on the Node.
You can open a contextual Create Node Menu by dragging an Edge from a Port with the left mouse button and releasing it in an empty area of the workspace.