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Hubs-Foundation / hubs-blender-exporter

The Hubs Blender Add-on enables artists to export their creations to the immersive web with Hubs
Mozilla Public License 2.0
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navmesh does not work in Hubs - Blender 4.2.2 seams not to export the navmesh component correctly #311

Closed uhunkler closed 1 month ago

uhunkler commented 1 month ago

When a scene is exported from Blender 4.2.2, the navmesh does not work in Hubs.

To Reproduce Export a scene in Blender 4.2.2 as GLB and import it in Hubs. The navmesh is not recognised in Hubs.

I compared the exported GLTF from Blender 3.6 with the one from Blender 4.2.2 and noticed, that the component call "nav-mesh": {}, is missing in the Blender 4.2.2 GLTF. When I add the line, create the GLB with the updated GLTF and upload that to Hubs the navmesh is recognised again.

When I look at the addons/io_hubs_addon/components/definitions/nav_mesh.py component file I don't see any special. Because I don't know how to debug the Blender AddOn I can't investigate more and hope my findings may help to solve the issue

Exairnous commented 1 month ago

@uhunkler Thank you for the bug report. I have uploaded a pull request that should fix it. Long story short, it was a change in Blender's glTF exporter that we needed to account for. See the description in the pull request for details.