Chapter 2. Working with Blender Compositor

This chapter explains the node-based architecture of Blender Compositor, linear workflow, and user interface panels. Following is the list of topics covered in this chapter:

  • Node-based architecture
  • Types of compositing nodes
  • Node Editor
  • UV / Image Editor
  • Color management and linear workspace

Architecture

Blender Compositor is built on an efficient node-based architecture. Every transformation tool in Blender Compositor is defined as a node, building a directed acyclic graph (DAG) from source input to output image. This process of building graphs using individual transformation tools is termed as node-based workflow. This architecture provides flexibility to tweak parameters procedurally. The connectors that connect these individual nodes are called noodles.

Composite node types

Every individual node performs a specific operation, and many such nodes are linked progressively to form a compositing flow. These nodes can be classified into three categories based on the functional similarities:

  • Input nodes: These nodes are used to get the image's information into Blender Compositor's workspace
  • Output nodes: These nodes save or display the result of the node graph
  • Transformation nodes: These nodes are used to modify or combine the input media
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