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by aughey • Modeling & Simulation
A local MCP server that exposes a Three.js 3D scene and real-time pointer/intersection data to AI agents, paired with a WebSocket server for interactive client communication.
Query the current 3D scene and objects (scene://current) to understand world state and object properties.
Real-time pointer/intersection feedback (pointer://current) to determine what a user or cursor is pointing at in the scene.
Programmatically modify the scene by adding, removing, or updating objects using tools like add-object, remove-object, and update-object.
This project runs a Next.js front-end with a Three.js/React Three Fiber 3D scene and a server that provides both WebSocket real-time messaging and an MCP (Model Context Protocol) SSE endpoint for AI agent integration. The server stores current intersection/pointer state per client, logs what the user is pointing at, and exposes resources (scene://current, pointer://current) plus tools to add, remove, and update objects. It is useful for testing and prototyping agent-driven scene inspection and manipulation (e.g., Claude Desktop via MCP or Super Gateway). Everything runs locally and is intended as a developer/demo integration rather than a hosted production service.
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