HY-World 2.0 just dropped

Posted by bobeeeeeeeee8964@reddit | LocalLLaMA | View on Reddit | 15 comments

Tencent just released HY-World 2.0 — the first open-source state-of-the-art 3D world model.

What makes it special (repo’s own words):

Generates real 3D assets (3D Gaussian Splats, meshes, point clouds) — not videos

Persistent & editable worlds you can “build once, keep forever”

Fully importable into Unity, Unreal Engine, Blender, Isaac Sim

Native physics, collision, first-person navigation, real-time rendering on consumer GPUs

Unlike video-only models (Genie 3, HY-World 1.5), no flickering, no time limit, true 3D consistency

Core: WorldMirror 2.0 — unified feed-forward model that predicts depth, normals, camera params, point clouds + 3DGS in one pass.

Multimodal: text, image, multi-view, or video → 3D world.

HF: https://huggingface.co/tencent/HY-World-2.0

GitHub: https://github.com/Tencent-Hunyuan/HY-World-2.0

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DHasselhoff77@reddit

If you look at the video full screen you can see that both the texture and mesh resolution are very low. Still interesting results.

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Long_comment_san@reddit

"no flickering, no time limit, true 3D"

Right...

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This seems *really cool* at a glance. Especially since it's FOSS, apparently? To the best of my knowledge, all of the current 3D asset generation models that actually work well have been closely guarded.

Only issue I see is that, at the moment, this generates entire *scenes*, rather than individual models that make up those scenes. In that cozy fireplace scene it generated, you can't open that up with Unity and, say, move a table easily.

Still, cautiously exciting.

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no-adz@reddit

"We will release all model weights, code, and technical details to facilitate reproducibility and advance research in this field."
Open source, not free license

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