How to add a shadowmap to a GLB

[Evgeni_Popov]

You’ll need to do what @Vinc3r did in his PG, which is to do it programmatically by loading the lightmaps as separate textures and assigning them to the right materials:

How many lightmap can be used in a gltf model?

If this example can help: https://playground.babylonjs.com/#ADPQFC#9 (here lightmaps are not embeded in the .glb, but availabled next to it)