is it legal?

NVIDIA and Microsoft just open-sourced the pieces of a full 3D studio for Opus 5.5

15 github repos, sorted by what you want to make:

GENERATE 3D ASSETS

01. TRELLIS.2 by Microsoft:
http://github.com/microsoft/TRELLIS.2
-> one image in, a fully textured 3D asset out, about 3 seconds on an H100

02. Hunyuan3D-2.1 by Tencent:
http://github.com/Tencent-Hunyuan/Hunyuan3D-2.1
-> production-ready 3D assets with PBR textures

03. stable-fast-3d by Stability AI:
http://github.com/Stability-AI/stable-fast-3d
-> one photo to a clean UV-unwrapped mesh, built for speed

04. meshy-mcp-server by Meshy:
http://github.com/meshy-dev/meshy-mcp-server
-> text or image to 3D, then remesh, retexture, rig and animate from your agent

BUILD SCENES AND WORLDS

05. mcp-for-blender:
http://github.com/ahujasid/mcp-for-blender
-> prompt-driven modeling, scene building and edits in a live Blender

06. HY-World-2.0 by Tencent:
http://github.com/Tencent-Hunyuan/HY-World-2.0
-> text or a single image to a navigable 3D world

07. supersplat by PlayCanvas:
http://github.com/playcanvas/supersplat
-> inspect, edit, optimize and publish 3D Gaussian splats in the browser

08. kit-usd-agents by NVIDIA:
http://github.com/NVIDIA-Omniverse/kit-usd-agents
-> edit Omniverse USD scenes in plain English, plus MCP servers for Kit and Isaac Sim

MAKE A GAME

09. unity-mcp:
http://github.com/CoplayDev/unity-mcp
-> run the Unity Editor in plain English: scenes, C# scripts, assets, tests, builds

10. godot-ai:
http://github.com/hi-godot/godot-ai
-> 46 tools for a live Godot editor: scenes, scripts, signals, UI, particles

11. unreal-engine-mcp:
http://github.com/flopperam/unreal-engine-mcp
-> drive a live Unreal Editor: actors, world building, Blueprints

3D ON THE WEB

12. editor-mcp-server by PlayCanvas:
http://github.com/playcanvas/editor-mcp-server
-> your agent builds PlayCanvas scenes and checks they actually run

13. three.js:
http://github.com/mrdoob/three.js
-> the JavaScript 3D library itself, 115k stars on GitHub

14. react-three-fiber:
http://github.com/pmndrs/react-three-fiber
-> build three.js scenes as reusable React components

15. threejs-skills:
http://github.com/CloudAI-X/threejs-skills
-> 10 three.js skills for Claude Code, from shaders to post-processing

a full 3D pipeline, and every piece of it lives on github