Performs interactive renders using Cycles, updating the render on the fly whenever the input scene changes. Cycles supports edits to all aspects of the scene without needing to restart the render.
Container for user-defined plugs. Nodes should never make their own plugs here, so users are free to do as they wish.
The scene to be rendered.
Turns the rendering on and off, or pauses it.
A direct pass-through of the input scene.
Messages from the render process.