Possumwood (named after Sandbox Tree) is a graph-based procedural sandbox, implementing concepts of graph-based visual programming in a simple interface. It is intended to provide a user-friendly and accessible UI for experimenting with common computer graphics algorithms and libraries (e.g., OpenGL, CGAL, WildMagic, OpenCV).

Possumwood is built on top of a simple graph-evaluation engine and a Qt-based node graph editor, with an OpenGL viewport. Its main strength is its extensibility - it is trivial to implement new plugins supporting new libraries and data types, which allows free and user-friendly experimentation with parameters of each algorithm.

Possumwood is a sandbox, not a production tool. As a sandbox, it is quite open to radical changes and redesign, and for the time being it does not guarantee any form of backwards compatibility.

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