Light baking in unreal engine and render the exported gltf in babylonjs

Questions
1

Hi All,

is it possible to render the gltf exported from unreal engine, where the lighting is baked?

found that there’s a uasset folder generated during the exporting, how should we unpack/convert it into a format that could be recognized by BS and render the baked lighting correctly?

much appreciated your help in advance, dealing with light is really not a easy job… any further tools / utilities that could help us achieving better lighting effect in BS is more than expected…

2

If you drag & drop the .gltf file + the asset folder into the sandbox it should work.

The easiest way to deal with this, however, would be to convert the file + folder to a .glb, which is self contained. I’m sure there are a lot of tools to do this, I’m using Microsoft Apps.

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3

I drag & drop in sandbox, but still not seeing the light baking texture

4

That’s probably because glTF does not support lightmaps.

To be sure it’s not a problem on Babylon.js side, can you try in another glTF viewer (like https://gltf-viewer.donmccurdy.com/)?

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5

Excuse me to step into your thread, but I need to know exactly the same. How do you bake lightmaps inside Unreal and how to export glTF from it?
Thanks!

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