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I’m trying to export my 3D model to a .glTF file but it does not work. When I am checking my model in glTF viewer.com it does not display anything. Also when I am opening a new Blender project and importing the .glTF file I just made and exported it does not even work. I tried with just a cube and that worked. But not with my 3D model I have made. Is there a setting I am missing or someone that have a clue what I am doing wrong?

(using Blender 4.0) This is how I do it. See image: enter image description here

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    $\begingroup$ I guess we might have to look at the actual file to see what the problem is. Just having a quick glance at half the model in viewport does not give much information. Since it worked with the cube, you seem to be exporting correctly in general. $\endgroup$ Commented Mar 18, 2024 at 14:56
  • $\begingroup$ Check if you're using Blender modifiers or other features that aren't included in glTF. The glTF format supports a robust PBR material, but not general Blender material nodes. glTF supports skinning and shape keys (morphing), but not general Blender modifiers. See: docs.blender.org/manual/en/latest/addons/import_export/… $\endgroup$ Commented Mar 18, 2024 at 15:06
  • $\begingroup$ What is the file size of the object your exporting does the size seem too small for your mesh this can indicate that nothing is being exported? maybe a material transparency setting is being exported accidentally. $\endgroup$ Commented Mar 18, 2024 at 16:57
  • $\begingroup$ I tried to remove all the materials. I also tried including modifiers and it still does not work. Regarding the size, I do not think there is somthing wrong. I uploaded the file in the question if someone could take a look at it since I do not understand what I am doing wrong. Would be very appreciated. $\endgroup$ Commented Mar 19, 2024 at 8:52

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If I try exporting your model, this appears in the console.

10:41:46 | INFO: Starting glTF 2.0 export 10:41:46 | WARNING: Mesh Pontum 3d viewer.733 is not valid, and may be exported wrongly 10:41:46 | INFO: Extracting primitive: Pontum 3d viewer.733 Error: Array length mismatch (expected 173211, got 173139) 10:41:46 | INFO: Primitives created: 0 10:41:46 | WARNING: Mesh 'Pontum 3d viewer.733' has no primitives and will be omitted. 10:41:46 | INFO: Finished glTF 2.0 export in 0.0600123405456543 s

I notice the model appearance also gets messed up.

If I then select the mesh and toggle into and then back out of Edit mode, the mesh appears to look correct again.

Now I try to export a second time, and it works.

10:53:14 | INFO: Starting glTF 2.0 export 10:53:14 | INFO: Extracting primitive: Pontum 3d viewer.733 10:53:14 | INFO: Primitives created: 1 10:53:14 | INFO: Finished glTF 2.0 export in 0.13958263397216797 s

Note that both the first failed export and the edit mode toggle are necessary to fix it.

I don't know how you got this invalid model, but if you can reproduce it, you can report it on Blender's bug tracker.

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  • $\begingroup$ It worked! I tried what you did and all came out fine. i appreciate your taking the time! $\endgroup$ Commented Mar 19, 2024 at 14:50

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