Unwrap UV
Generate a clean UV layout automatically to prepare a model for AI Texturing or for texturing by hand.
UV quality directly affects texture results, and a good layout has no seams and no stretching. Run Unwrap UV after Remesh and before AI Texturing, when an imported model has no UVs, or when AI Texturing shows visible seams. Skip it if your model already has good UVs from a DCC tool, or if you only need geometry, such as an STL file for 3D printing. Unwrap UV isn't available on mobile.
Unwrap a model's UVs
To unwrap a model's UVs, follow these steps:
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In the panel that lists your generations, click the model.
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In the viewer toolbar, click Remesh, and then select Unwrap UV. For a model that can't be remeshed, such as a Meshy T2 model, click Unwrap UV in the viewer toolbar instead.
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In the Unwrap UV dialog, click Confirm. Unwrap UV costs 5 credits. If the model has quad topology, the dialog tells you that Unwrap UV converts it to triangle topology.
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When Meshy finishes, in the panel that lists your generations, click the unwrapped model. Meshy saves it as a separate model and keeps the original.
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Optional: In the viewer, click View UV, and check the UV islands in UV Layout for stretching. To see the seams on the model, turn on 3D Seams. To spot stretching, turn on UV Checker.
You can then texture the unwrapped model with AI Texturing.
Troubleshooting
The following table lists common problems, their causes, and how to fix them.
| Problem | Cause | Fix |
|---|---|---|
| A Remesh panel opens instead of the Unwrap UV dialog | The model has more faces than Unwrap UV supports. The panel shows the limit. | In the panel, set Target Polycount, and then click Remesh. When Meshy finishes, run Unwrap UV on the remeshed model. |
| Meshy says the model has too many faces to unwrap | The model has more faces than Unwrap UV supports, and it can't be remeshed | Regenerate the model at a lower face count, and then run Unwrap UV. |
FAQ
- What does Unwrap UV do?
- It generates a clean UV layout automatically. It unwraps your 3D surface into 2D space so textures apply without seams or stretching.
- When should I use Unwrap UV?
- Use it after Remesh, when an imported model has no UVs, or when AI Texturing shows visible seams.
- Do I need to Unwrap UV before AI Texturing?
- It's recommended. Good UVs are the foundation for clean textures without seams.
- Do I need Unwrap UV after Remesh?
- Not to keep your textures, because Remesh bakes them onto the new mesh. Run Unwrap UV after Remesh when you want a clean UV layout for texturing by hand or for AI Texturing.
- When can I skip UV unwrapping?
- Skip it if your model already has good UVs, or if you only need geometry, for example an STL file for 3D printing.
Next steps
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To texture the unwrapped model, see AI Texturing.
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To rebuild the topology before you unwrap a model, see Remesh.