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

Topic		Replies	Views
Sandbox can not export .babylon of .glb when .glb uses draco mesh-compression Bugs blender , gui	8	1196	May 29, 2020
Lighting issue with draco compressed mesh Bugs lighting	9	819	January 12, 2021
Textures not loading properly with glTF draco compression Bugs	8	461	September 19, 2023
An error occurred in the GLB file in the sandbox Questions	7	968	July 17, 2019
Maya Exporter / Draco Compression Questions	8	1997	January 2, 2020