Raspberry Pi 400 runs BabylonJs (yay!) but useContactHardeningShadow crashes it

Bugs
1

I’m experimenting with a Raspberry Pi 400 (and thinking of using it as a performance benchmark for game development) and discovered that my standard babylonjs demo crashes on the Pi’s browser, but most tutorials and examples on the website do not.

I narrowed it down to this:

shadowGenerator.useContactHardeningShadow = true

Here’s a fiddle allowing you to replicate the issue; you can uncomment line 15 (on a Raspberry Pi) to see the issue (it’s pretty bad – it hangs the browser tab)

As far as I can tell, the browser is not misreporting its capabilities but I’m no expert.

2

Also note that percentageCloserFiltering fails in much same way.

The WebGL v1 blurred shadow options don’t cause crashes, but they also appear not to work.

3

Contact hardening shadow and PCF need WebGL 2 to work. I assume that Pi 400 doesn’t support WebGL 2?

It’s probably a problem with tweaking the shadow parameters (like bias). This page could help: Shadows | Babylon.js Documentation