LGTM2
/Daniel
On 2026-03-25 13:50, Mike Taylor wrote:
https://github.com/gpuweb/gpuweb/issues/5154#issuecomment-4114620422
is helpful, thanks.
LGTM1
On 3/23/26 2:59 p.m., 'Alan Baker' via blink-dev wrote:
Hi Alex,
I've added https://github.com/gpuweb/gpuweb/issues/5154 as an
explainer. This was a user-requested feature for the WebGPU WG. It
went through prioritization and discussion there. It adds QoL
polyfills over existing builtins. Everyone (including myself) who has
tried to write those formulae themselves has failed at least once so
there was good value for implementations to provide the builtin (and
overflow safety checks).
Thanks,
Alan
On Mon, Mar 23, 2026 at 2:52 PM Alex Russell
<[email protected]> wrote:
Hey Alan,
Thanks for sending this Intent. I'm glad to see a team go
straight to shipping when we have confidence that a feature is
worthwhile!
That said, it's a bit surprising that we don't have any developer
signals. Likewise, I can't find an Explainer or any example code
from the links in the Intent that will benefitfeature. What does
this improve? Who will use it? How will it make things better for
users and/or developers?
Best,
Alex
On Monday, March 23, 2026 at 7:04:03 AM UTC-7 Chromestatus wrote:
*Contact emails*
[email protected]
*Explainer*
/No information provided/
*Specification*
https://github.com/gpuweb/gpuweb/pull/5554
*Summary*
Functionality added to the WebGPU spec after its first
shipment in a browser. Adds two new compute shader built-in
values for user quality of life. These are implemented for
all backends (as polyfills of existing built-in values).
*Blink component*
Blink>WebGPU
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebGPU%22>
*Web Feature ID*
webgpu <https://webstatus.dev/features/webgpu>
*Motivation*
This feature adds two new compute built-in values to WGSL.
They are quality-of-life additions whose implementations are
polyfilled on top of existing values.
*Initial public proposal*
/No information provided/
*TAG review*
/No information provided/
*TAG review status*
Pending
*Goals for experimentation*
None
*Risks*
*Interoperability and Compatibility*
/No information provided/
/Gecko/: No
signal
(https://github.com/mozilla/standards-positions/issues/1205#issuecomment-3312534193)
/WebKit/: Closed Without a
Position
(https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933)
/Web developers/: No signals
/Other signals/:
*WebView application risks*
Does this intent deprecate or change behavior of existing
APIs, such that it has potentially high risk for Android
WebView-based applications?
/No information provided/
*Debuggability*
/No information provided/
*Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?*
Yes
*Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
Yes
WebGPU conformance tests added in
https://github.com/gpuweb/cts/pull/4595
*Flag name on about://flags*
Enable Unsafe WebGPU
*Finch feature name*
UnsafeWGSLFeatures
*Rollout plan*
Will ship enabled for all users
*Requires code in //chrome?*
False
*Tracking bug*
https://crbug.com/tint/482840564
*Estimated milestones*
Shipping on desktop 148
Shipping on Android 148
Shipping on WebView 148
*Anticipated spec changes*
Open questions about a feature may be a source of future web
compat or interop issues. Please list open issues (e.g. links
to known github issues in the project for the feature
specification) whose resolution may introduce web
compat/interop risk (e.g., changing to naming or structure of
the API in a non-backward-compatible way).
/No information provided/
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5071243424432128?gate=6507584288849920
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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