The Composite node is where the actual output from the Compositor is connected to the renderer. This node is updated after each render, but also reflects changes in the node-tree (provided at least one finished input node is connected).
Connecting a node to the Composite node will output the result of the prior tree of that node to the Compositor.
- RGB image. The default is black, so leaving this node unconnected will result in a blank image.
- Alpha channel.
- Use Alpha
- Premultiplied or straight.
This node has no output sockets.
If multiple Composite nodes are added, only the active one (last selected, indicated with a slightly darker header) will be used.