Will it Blend? Writing a Custom Constraint Solver for Blender with Cython

Explore how to leverage Cython to create a custom geometric constraint solver for Blender, proving that Python can deliver both speed and accessibility. Learn about common Cython development pitfalls and how to overcome them while maintaining a Python-like package structure. Discover the process of integrating optimized Cython code into Blender add-ons, including interface creation and property handling. Gain insights into software applications in the built environment, physical and digital form-finding techniques, and the power of constraint solvers for 3D geometry. Follow along with a practical demonstration of the Pymaxion Blender add-on, showcasing the real-world application of these concepts.

Intro
Agenda
Software in the Built Environment What I Used It For • Building Analysis
Physical and Digital Formfinding
Constraint Solvers for 3d Geometry
Why Cython?
What is Cython? • Optimizing Static Compiler • Provides support for debugging in Python, Cython, and
Toy Constraint Problem Constraints • Anchors (supports) - 10,21 Forces (loads) - 11
Package Structure and Modules with Cython
Compiling Cython
Before you release the GIL...
Releasing the GIL!
Evaluating Cython performance - py-spy
What is Blender?
Adding your Cython package to Blender
Blender Add-on Interface Creation Typical files
Blender Properties
Pymaxion - Blender Demo!