Blender geometry nodes & AI

Posted on by

Demander à Gemini de m’instruire sur les geometry nodes qui semblent une méthode nouvelle intéressante pour créer les assets qui me manquent dans Blender sans me jeter par la fenêtre à mi-chemin et évaluer les méthodes IA de génération de meshes.


In 2025, the landscape for “Text-to-3D” in Blender has shifted toward Agentic AI—where the AI doesn’t just “generate a mesh” (which usually results in a messy triangle soup), but actually uses Blender’s own tools to build the objec

If you want to design a bridge via text, here are the best free and freemium options, with a focus on your concern for UVs and topology.

1. The Best “Text-to-Architecture” Tool: 3D-Agent

Released late in 2024/2025, 3D-Agent is specifically designed for what you’re asking. Instead of generating a “blob” of a bridge, it connects to an AI (like Claude) and writes Python code to execute actual Blender operations.

  • How it works: You type “Create a suspension bridge with 4 main pillars and a wooden deck,” and the AI adds primitives, applies modifiers, and organizes the outliner.
  • The UV Advantage: Because it uses actual Blender objects (cubes, cylinders) and modifiers (Array, Mirror), the UVs are much cleaner and “predictable” compared to generative point-cloud models.
  • Cost: Often has a free tier or uses your own API key.

2. The Best “All-in-One” Generative: Tripo AI & Meshy

If you want a one-click generation where the AI handles the “heavy lifting” of the mesh creation, Tripo AI and Meshy are the industry leaders.

  • The Workflow: You describe your bridge on their web platform or via their Blender plugin. It generates the mesh in about 30–60 seconds.
  • The UV Advantage: Both Tripo and Meshy have recently updated their algorithms to support Auto-Retopology and Auto-UV Unwrapping. They now generate “Quads” (square polygons) instead of “Tris” (triangles), which makes the UVs significantly easier to work with.
  • Cost: Freemium (usually a daily credit limit).

3. The Best “Text-to-Control”: BlenderGPT / Blender MCP

These are free, open-source addons that act as a “command bar” for Blender.

  • Usage: You can type “Select all objects and unwrap them using Smart UV Project” or “Create a procedural bridge using a curve and a profile mesh.”
  • Why for you: It’s great if you want to guide the design process via text without knowing the technical menus.
  • Cost: Free (Open-source).

Managing your UV Concerns (Free Addons)

Since AI-generated UVs are rarely perfect, you should install these free tools to fix them instantly:

AddonPurposeWhy you need it for AI models
UV-PackerAutomatic PackingAI often leaves huge gaps in UV maps. This packs them perfectly in one click.
TexToolsUV/Baking ToolkitA Swiss-army knife for cleaning up messy UV islands.
DreamUVViewport TexturingAllows you to texture your bridge directly in the 3D viewport without opening the UV editor.