Material does not use texture coordinates

Questions
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1

Hello,

I exported out a .glb and improted into a gltf viewer and the error thrown was

MESH_PRIMITIVE_UNUSED_TEXCOORD
Material does not use texture coordinates sets with indices (0).
`/meshes/0/primitives/0/material`

I’m just trying to understand what this error means?

Cheers!

2

Uploaded to Sketch fab and magically all the textures showed up… Well, one model had the texture, bump, and roughness maps all wrong but was able to fix.

3

In general, it just means that certain information of the asset are not actually used. In this case, texture coordinates are defined but the material has no textures that would utilize these data.

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4

Hey Thanks,

When I exported from Modo I realized I didn’t add gltf2 to the materials. Once I did that everything worked out! So maybe code wise it didn’t attach to the bin or decode correctly. Still learning how this works so dont know the lingo.

Cheers

5

Doesn’t hurt anything to include UVs without a texture, sometimes you might want that. The validator is just letting you know because if you didn’t need them, removing them would save a few bytes per vertex.

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