Check: UV Map Range

Version:

Severity: Warning

Error message: UVs must be confined to the 0-1 UV space.

Description

UVs were found to lie outside the 0-1 range of UV coordinate space.

This can lead to unexpected results when an avatar with merged materials via texture atlasing is requested from Ready Player Me.

This can also cause unexpected results when the Extension setting of an Image Texture Node is set to Extend or Clip.

Ready Player Assets use non-tiling textures.

Having all UVs in the 0-1 range of UV space is necessary for the texture atlasing to work correctly.

Automatic fix

Not available.

Manual fix

Right click -> Select Vertices outside the 0-1 UV space range.

Select vertices associated with UVs that are outside the 0-1 UV space range.

Rearrange UVs to fit within the UV space that goes from (u:0, v:0) to (u:1, v:1).

Tips

  • While editing UVs in Blender, set the option to constrain UVs to the 0-1 range.

  • Leave a bit of padding towards the edge of the UV range, as otherwise MIP mapping could cause color bleeding into other areas of the model when texture atlasing for Ready Player Me avatars is turned on by a partner application.

Properties

Hosts: Blender

Types: Mesh

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