shader-f16 not supported by browser

[yylly]

Chromium v120 and up is meant to have shader-f16 by default, but it won't be listed in features here: https://webgpureport.org/

See: https://github.com/mlc-ai/web-llm/issue ... 1877115608

I need this feature for use with @mlc-ai/web-llm, please include it in an update. Thank you.

[catsxp]

Same kernel m129 in Chrome and CatsXP
The test results are consistent

[yylly]

Same kernel m129 in Chrome and CatsXP
The test results are consistent

When you go to this site, does it show shader-f16 in the "features" section? (Bottom of the middle column.)

[catsxp]

M120+ confirmed default support?

[yylly]

M120+ confirmed default support?

https://chromestatus.com/feature/5180552617656320
https://developer.chrome.com/blog/new-in-webgpu-120

[catsxp]

代码： 全选

// List of WebGPU feature names, delimited by ,
// The FeatureParam may be overridden via Finch config, or via the command line
// For example:
//   --enable-field-trial-config \
//   --force-fieldtrial-params=WebGPU.Enabled:UnsafeFeatures/timestamp-query%2Cshader-f16
// Note that the comma should be URL-encoded.

This is the only relevant comment that can be found in the source code
Attempt to add startup parameters：

--enable-field-trial-config \
--force-fieldtrial-params=WebGPU.Enabled:UnsafeFeatures/timestamp-query%2Cshader-f16

The test results show that it is not yet open
Are you sure the test results of this page are valid under win? (Mac testing?)

catsxp://gpu/

代码： 全选

[Adapter Supported Features]
----------------------------
*   depth-clip-control
*   depth32float-stencil8
*   timestamp-query
*   texture-compression-bc
*   indirect-first-instance
*   shader-f16
*   rg11b10ufloat-renderable
*   bgra8unorm-storage
*   float32filterable
*   subgroups
*   subgroups-f16
*   dawn-internal-usages
*   dawn-multi-planar-formats
*   dawn-native
*   implicit-device-synchronization
*   surface-capabilities
*   unorm16texture-formats
*   snorm16texture-formats
*   multi-planar-render-targets
*   adapter-properties-memory-heaps
*   adapter-properties-d3d
*   format-capabilities
*   norm16texture-formats
*   shared-texture-memory-dxgi-shared-handle
*   shared-fence-dxgi-shared-handle

is ok!

[yylly]

My apologies, it turned out to be a hardware issue, apparently my card doesn't support shader-f16. Very sorry.