Blender to Three.js and Back: 10 Tips for a Better Workflow
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A collection of practical tips for combining AI, Blender, and Blender MCP to improve a Blender-to-Three.js workflow. Covers syncing transforms between Blender and Three.js, using Blender empties for spawn/pivot points, converting Geometry Nodes setups into Three.js code via LLMs, building custom Blender addons (including vibe-coded ones) that chain other addons and command-line tools like GLTFJSX and gltf-transform, upgrading to Blender 5.2+ LTS for Meshopt compression, and adopting Three.js Shading Language (TSL) as an easier path to writing shaders that compile to GLSL and WGSL.
Table of contents
Before we get started1. You can create a Blender Addon + coding system that instantly updates every time you export2. You can sync basic rotation/scale/move operations between three.js and Blender3. Geoscatter instances work with Blender MCP4. Use Blender empties and dummy objects for a lot of stuff5. You can create a Blender Addon that calls other addons6. Combine multiple steps with vibe-coded Addons7. Converting Geometry Node setups into Three.js code works decently well8. Run common dev tools and command line tools directly from Blender9. Upgrade to Blender 5.2+ LTS for the Meshopt compression option10. Now with Three.js Shading Language (TSL), converting Blender shader nodes is a lot easierQuestions this post answers
What does upgrading to Blender 5.2 LTS give me for exporting to Three.js?
Blender 5.2+ LTS adds a Meshopt compression option, which helps optimize 3D assets before bringing them into a Three.js/glTF pipeline. This pairs well with AI-assisted Blender-to-Three.js workflows where reduced file size matters for web delivery. Developers tracking Blender and Three.js compatibility changes can follow ecosystem updates on daily.dev.
What is TSL in Three.js and why would I use it instead of writing raw GLSL?
TSL, or Three.js Shading Language, is a newer way to write custom shaders in Three.js that the core maintainers created specifically to simplify shader authoring. Code written in TSL compiles down to both GLSL, the older web graphics standard, and WGSL, the newer upcoming standard, and its node-based structure closely resembles Blender's shader nodes. Anyone choosing a shader authoring approach for Three.js can find comparisons like this on daily.dev.
Can I convert a Blender Geometry Nodes setup directly into Three.js code using AI?
Yes, using an LLM with Blender MCP to analyze a Geometry Nodes setup and convert it into a Three.js experience works decently well for many common setups. More complicated Geometry Nodes configurations, however, still require a developer who understands the underlying logic to finish the conversion correctly. Developers experimenting with AI-assisted 3D pipelines can follow practical workflow tips on daily.dev.