I don't think the Web Developer link below counts as proof of web
developer support. I assume there is someone that wants this or you
wouldn't be doing this?
On the other hand, I read the WebKit bug as positive rather than "no
comment" so there is that. :)
/Daniel
On 2025-09-23 09:31, 'François Beaufort' via blink-dev wrote:
Here's the mini explainer from the chrome status entry motivation section:
Tier1 lets developers port existing content to the web without
rewriting to use
WebGPU’s lower capabilities. Tier2 supports storage textures formats
that don't
have support in base WebGPU, meet the need for Unity and various
startups to
port Unreal Engine to the Web. Tier1 is a dependency of Tier2.
By exposing those capabilities as WebGPU features, developers can
explicitly
check for support and provide fallback solutions or alternative
rendering paths
when necessary.
On Mon, Sep 22, 2025 at 9:00 PM 'Dan Clark' via blink-dev
<[email protected]> wrote:
As someone less familiar with this area I'm having a hard time
understanding what this is for.
Could you share more context about this addition and the use cases
motivating it, or even better, put together a short explainer doc
that does so?
-- Dan
On Friday, September 19, 2025 at 7:59:01 AM UTC-7
[email protected] wrote:
LGTM1
On 9/18/25 9:49 p.m., Chromestatus wrote:
*Contact emails*
[email protected]
*Explainer*
None
*Specification*
https://www.w3.org/TR/webgpu/#texture-formats-tier1
*Summary*
Extend GPU texture format support with capabilities like
render attachment, blending, multisampling, resolve and
storage_binding.
*Blink component*
Blink>WebGPU
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebGPU%22>
*Web Feature ID*
webgpu <https://webstatus.dev/features/webgpu>
*TAG review*
None
*TAG review status*
Not applicable
*Risks*
*Interoperability and Compatibility*
None
/Gecko/: No
signal (https://github.com/mozilla/standards-positions/issues/1205)
/WebKit/: Closed Without a
Position
(https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933)
/Web developers/:
Positive (https://github.com/gpuweb/gpuweb/issues/3837)
/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? None
*Debuggability*
None
*Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?*
NoAll platforms will eventually have support. Will
immediately be available on Android, Android WebView,
ChromeOS, Mac, and Windows, since those platforms already
support WebGPU. Linux is planned to have WebGPU support in
the future, so this feature will become available when WebGPU
does.
*Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
YesWebGPU/WGSL have a conformance test suite
(https://github.com/gpuweb/cts) that is regularly pulled into
Chromium and part of the testing of Dawn/Tint in Chromium.
While the CTS can be embedded in WPT, the WebGPU team opted
to keep it separate in Chromium testing to use a customized
harness for robustness and performance. All the tests about
this feature in WebGPU CTS can be found through
https://github.com/search?q=repo%3Agpuweb%2Fcts+texture-formats-tier&type=code
<https://github.com/search?q=repo%3Agpuweb%2Fcts+texture-formats-tier&type=code>
*Flag name on about://flags*
Enable Unsafe WebGPU
*Finch feature name*
WebGPU.Enabled:UnsafeFeatures
*Rollout plan*
Will ship enabled for all users
*Requires code in //chrome?*
False
*Tracking bug*
https://issues.chromium.org/issues/445725447
*Estimated milestones*
Shipping on desktop 142
Shipping on Android 142
Shipping on WebView 142
*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). None
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5116926821007360?gate=5198559351799808
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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