It is a TIL (Today I Learned) blog post by Simon Willison documenting how frontier AI models used as coding agents (e.g., ChatGPT Codex) can control Blender on macOS to build scenes, produce editable .blend files, render images, and even generate movies by rendering frame sequences and combining them with ffmpeg.
This is most valuable when a developer needs AI-generated 3D assets, rendered imagery, or short video sequences for prototypes, mockups, or content pipelines, and wants to automate the creative process through natural language instead of manual 3D modeling.