Re: Debugging WebGPU in Safari

Hi Nicolas,

Safari / WebKit bugs can be reported at https://bugs.webkit.org/

I took a Quick Look and filed https://bugs.webkit.org/show_bug.cgi?id=273070 for your site.

It appears at least the first issue to be an issue in our WGSL -> metal step which does not handle this code yet:
for (var i = 0; i < 250; i++) @diagnostic(off,derivative_uniformity) {

You can see the error by calling GPUShaderModule.getCompilationInfo() on the shader module.

Thanks,
Mike

> On Apr 20, 2024, at 5:19 PM, Nicolas Garcia Belmonte <philogb@gmail.com> wrote:
> 
> Hi Team - Not sure this is the right group to be asking this question so please redirect me where needed.
> 
> I recently made a visualization with WebGPU here: https://philogb.github.io/page/indraspearls/
> 
> It was tested in Chrome and all seemed to be working well. After recent news that Safari had a testable implementation I went to Safari, enabled the feature flag and restarted the browser. I am now not getting a "WebGPU unsupported" error, however the screen is all dark and I am not seeing any issues in the developer console.
> 
> Do you have any advice on how I can troubleshoot this? Without any error logged it's hard for me to figure out next steps.
> 
> Thanks!
> 
> --
> Nico