We are seeing strange behavior when dealing with Draco compressed GLTF files that use multiple UV sets. When compressing with Draco, any UV sets beyond the first two are lost. Here is a very simple example using a cube. This behavior can be reproduced using Modo, Blender, or GLTF Pipeline to do the …

Add missing UVs to glTF draco loader extension by bghgary · Pull Request #10538 · BabylonJS/Babylon.js (github.com)

Multiple UV Sets Getting Lost With Draco Compression

Alex_B June 21, 2021, 9:12pm 4

Thanks, that’s my next step but I assumed we would not get a prompt response there

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