[Webkit-unassigned] [Bug 266882] New: Web Inspector: No errors reported in console when unimplemented WGSL radians() function is used in compute shader

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266882

            Bug ID: 266882
           Summary: Web Inspector: No errors reported in console when
                    unimplemented WGSL radians() function is used in
                    compute shader
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Mac (Apple Silicon)
                OS: macOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: umar.ahmed1998 at gmail.com
                CC: inspector-bugzilla-changes at group.apple.com

Created attachment 469200

  --> https://bugs.webkit.org/attachment.cgi?id=469200&action=review

Screenshot showing Safari TP running with the unpatched version of my code

I was testing out my project (https://github.com/umar-ahmed/webgpu-pathtracer/) on Safari Technical Preview 185 with the WebGPU feature flag enabled. However, when I loaded it up, I was met with a black screen and no errors in the console.

Using `git bisect`, I was able to narrow down the issue to the use of the radians() function in my WGSL compute shader, which doesn't seem to be supported on this build of Safari (but is supported in Chrome Version 121.0.6167.16 (Official Build) beta (arm64), which I was using to develop). This was the patch that I applied to resolve the issue: https://github.com/umar-ahmed/webgpu-pathtracer/commit/8fdfe37cbb3c38e856feba19275eb023a70b2ff7.

I'm filing this bug as a Web Inspector bug instead of a WebGPU bug because I'm not sure if radians() is supposed to be implemented yet in Safari. If it is, then this bug can be recategorized. But my immediate concern was that I got no compiler/runtime warning when the shader was executed.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20231225/b943b7b1/attachment-0001.htm>