GSplat - Exception in Firefox - results in unsorted splats

Help & Support
1

Hi,

Adding an entity with a GSplatComponent with a PLY asset attached, in a new editor project, throws an exception after moving the camera a bit.

Uncaught DOMException: Worker.postMessage: attempting to access detached ArrayBuffer
    onmessage https://code.playcanvas.com/playcanvas-1.69.2.js:36652

image
image722×426 12.1 KB

The exception seems to happen in the GSplatSorter and disables splat sorting. This also happens in launched projects.
https://playcanvas.com/editor/scene/1989009

So far it only seems to occur in Firefox (currently using 125.0.1 (Win 64-bit))

Possible fix/workaround might be to check the oldData for byteLength === 0 to not post detached data, but haven’t tested this yet.

Hope that helps,
Tom

2

Editor Screenshot after the exception happened:

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image1380×1053 86.2 KB

3

yep there is definitely this problem. The issue for tracking: All splat demos fail on FireFox desktop · Issue #5895 · playcanvas/engine · GitHub

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