WebGPU support

[JFuellem]

I know, this is very early and Unity 6.1 isn't released long ago.

When choosing the WebGPU graphics engine in Unity 6.1, it builds without problems, but the scene doesn't start. It just gets stuck on the loading bar but without any errors. I can see the WebXR messages in the console being successful. Start WebXRSubsystem is the last entry and nothing happens.
So I suppose, it's not supported yet and doesn't work out of the box. Would it be difficult to implement that?

I tested this with 6000.1.3f1.

Thanks in advance!

[De-Panther]

WebXR+WebGPU is not publicly available as far as I know
https://immersive-web.github.io/webxr-samples/webgpu/
Once browsers will actually support it without enabling flags, I intend to add support for it.

[JFuellem]

Ah yes, that makes a lot of sense. Thank you for your very quick response.

[botaohu]

@De-Panther Safari will begin enabling WebGPU by default in September 2025. https://developer.apple.com/videos/play/wwdc2025/236/

I'm looking forward to WebGPU support. Do you have an estimated delivery date for this feature?
https://caniuse.com/webgpu

[De-Panther]

The issue is not WebGPU support, but the WebXR WebGPU module support.

[yourdallaness]

It is coming, friends, a flag now exists Chrome. Announcement from an engineer at google: https://toji.dev/2025/03/03/experimenting-with-webgpu-in-webxr.html

[De-Panther]

As already mentioned before:

WebXR+WebGPU is not publicly available as far as I know
https://immersive-web.github.io/webxr-samples/webgpu/
Once browsers will actually support it without enabling flags, I intend to add support for it.

[yourdallaness]

Thanks for the reply, didn't mean to sound pushy/imply you should implement this, just thought people will appreciate the news

[willguest]

i had a poke at getting webgpu working with unity 6.3 LTS. see this document for a list of the necessary changes and the surrounding repo with an implementation of them

[De-Panther]

i had a poke at getting webgpu working with unity 6.3 LTS. see this document for a list of the necessary changes and the surrounding repo with an implementation of them

Thanks. Interesting.
Have you tested it on any device? which device?

As far as I know, only AVP supports WebXR+WebGPU right now, and I'm not sure how close to spec it is.
I know Meta Browser team works on support, but I'm not sure on which point are they.

[De-Panther]

Meta Quest Browser now has WebXR WebGPU support behind a flag. I'll take a look