Collada/Gltf Export: Missing UV-Coords about importer-exporter HOT 3 CLOSED

According to the collada_spec_1.4, the <bind_vertex_input> element ist optional (minOccurs = 0). Also, In the collada file generated from our import-export tool, there is also no mismatches in the semantic identifier’s meaning, which requires the <bind_vertex_input> element.

A short quesion: Has the import-export tool converted your textured 3D city models to glTF-models with missing texutre information which cannot be properly visualized on Cesium? If so, could you share with us your CityGML data which would be very helpful in fixing the bug?

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All of the CityGML-data I used comes from this site: http://www.businesslocationcenter.de/berlin3d-downloadportal/.

I don't know Collada's Schema very well, and the above was only my attempt at explaining this problem. I came to this conclusion, after comparing the collada file from the exporter, with the same file, but imported into Blender, then exported as Collada again. Only the "Blender-file" could be converted correctly with the Collada2Gltf-tool.

Since both Blender and Google-Earth-Pro had no problem reading the Collada-file from the exporter, maybe the Collada2Gltf-tool is at fault here.

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Closed due to inactivity. Feel free to reopen again if you still have issues.

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