Gltfexporter exports object with duplicate meshes | Three.js | Page 1

quaint vale Oct 9, 2023, 8:40 PM

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the original object does not have duplicate meshes, but when I export it with gltfexporter it provides duplicate meshes. What is causing this?

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Gltfexporter exports object with duplicate meshes

humble olive Oct 9, 2023, 10:05 PM

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i don't think we'll guess much from a screenshot, but ... are they duplicates in appearance too? or only in name?

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if the original file had multiple 'mesh primitives' in a single glTF 'mesh', it would come out of three.js as multiple meshes... simply that concepts like meshes and materials do not always map 1:1 when going from <file format> to three.js to <file format> to Blender, and so on.

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Or might be different structuring of skinned meshes and skeletons.

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I would definitely expect some differences in structure after a GLTFLoader + GLTFExporter round trip, not sure what specifically is causing what you see in that screenshot, though.

quaint vale Oct 10, 2023, 8:58 AM

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humble olive i don't think we'll guess much from a screenshot, but ... are they duplicates in...

name & apperance - here's the code

past fog Oct 10, 2023, 2:54 PM

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if one mesh has multiple materials, gltf exporter splits the mesh into multiple meshes having 1 material each (i think it's done for performance reasons)

quaint vale Oct 10, 2023, 5:12 PM

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Is there any way to bypass it? @past fog

#Gltfexporter exports object with duplicate meshes