Facet Depth Sort and "updatable" meshes

Questions
1

Hi everbody,

I’m trying to understand how to use the “Facet Depth Sort” features as it is shown here

https://playground.babylonjs.com/#FWKUY0#46

The crucial point when using this feature is that the mesh has to be “updatable”. When using the MeshBuilder, I can simply set this property to true. But I want to use this feature with mesh loaded from a file (obj, gltf, …). And so far I couldn’t figure out how to make such a mesh “updatable”. Can someone help me out here please :slight_smile:

Best,
Philipp

2

By looking at the code on github, I was able to answer my own question:
Obviously there is the BABYLON.Mesh.markVerticesDataAsUpdatable(kind: string, updatable?: boolean): void method but that doesn’t do the trick in this case since the index data needs to be updatable. To achieve this, simple call mesh.setIndices(mesh.getIndices(), null, true); and you’re good.

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