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Draco mesh imported incorrectly when loading draco compressed .glb #7370

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tonetechnician opened this issue Feb 23, 2025 · 1 comment
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@tonetechnician
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tonetechnician commented Feb 23, 2025

Hey there,

I've been attempting to import a draco compressed .glb into playcanvas, however, it seems the meshes are broken when viewing in playcanvas. It seems almost like a quantisation/decoding error or something as the vertex count is not the same between blender and playcanvas - also it doesn't seem to happen on all assets I've tested with. I've attached examples below in playcanvas model viewer, blender and babylonjs.

Model viewer
Image

Blender
Image

Babylon

Image

Here is a link to the asset in question

https://drive.google.com/file/d/1C43h8pXEVlsEXUdeipz3i5XUt2Ty_Uvr/view?usp=sharing

@tonetechnician tonetechnician changed the title Incorrect mesh creation in playcanvas when loading draco compressed .glb Draco mesh imported incorrectly in playcanvas when loading draco compressed .glb Feb 23, 2025
@tonetechnician tonetechnician changed the title Draco mesh imported incorrectly in playcanvas when loading draco compressed .glb Draco mesh imported incorrectly when loading draco compressed .glb Feb 23, 2025
@mvaligursky
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Confirming that our glb viewer does not load it correctly.
Attaching the glb here to keep it available.

deadpool-no-materials.glb.zip

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