Graphics Programs Reference
In-Depth Information
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 transform-
ation 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 us-
ing individual transformation tools is termed as node-based workflow. This architec-
ture 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
