Blender Composite Nodes

Without a doubt, compositing is currently one of the hot topics in 3D computer graphics creation

, particularly because it enables efficient management and creative control of complex scenes and images. A typical 3D graphic can consist of many individual layers, each having a special filter or effect applied and combined into the final result. By pre-rendering such layers an artist can work much faster on fine-tuning the final lresult of an image.

In Blender, the Compositor is tightly integrated and aligned with the rendering pipeline. For this reason it is part of the Blender Scene, meaning there's only one "Composite" possible per Scene (but each file can have unlimited Scenes).

Compositing can also be used 'stand-alone; with only images read from disk as input, allowing you to render the Composite without having a 3D rendering invoked.