Developer Builds Image-to-3D Model Pipeline Using Gemini, LangGraph, and Hunyuan3D-2

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A developer has created Core3D, a full-stack application that converts a single 2D image into a usable 3D model in approximately 22 seconds. The system uses U2-Net and rembg for background removal and subject isolation, followed by Google's Gemini Flash-Lite to generate a geometric description that helps infer hidden surfaces and structure. Hunyuan3D-2, accessed via a Hugging Face ZeroGPU Space, then generates the 3D mesh based on the conditioned input. The pipeline is orchestrated with LangGraph on a FastAPI backend, while a Next.js frontend with WebGL allows users to inspect the final .GLB model directly in the browser. Mesh repair and validation are handled by Trimesh before the model is delivered to the user.

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