HY-World 2.0 — 3D World Model Skill

Skill by ara.so — Daily 2026 Skills collection.

HY-World 2.0 is a multi-modal world model by Tencent Hunyuan that reconstructs, generates, and simulates 3D worlds. It accepts text, single-view images, multi-view images, and videos as input and produces 3D representations (meshes, 3D Gaussian Splattings, point clouds). Two core capabilities:

• World Reconstruction (multi-view images / video → 3D): Powered by WorldMirror 2.0, a ~1.2B feed-forward model predicting depth, surface normals, camera parameters, 3D point clouds, and 3DGS attributes in a single forward pass.
• World Generation (text / single image → 3D world): Four-stage pipeline — Panorama Generation (HY-Pano 2.0) → Trajectory Planning (WorldNav) → World Expansion (WorldStereo 2.0) → World Composition (WorldMirror 2.0 + 3DGS).

Installation

Requirements

• Python 3.10
• CUDA 12.4 (recommended)
• PyTorch 2.4.0