WPT details: WebGPU/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. https://github.com/gpuweb/cts/pull/4029
Adds additional vertex formats not present in the initial release of WebGPU due to lack of support or old macOS versions (which are no longer supported by any browser). The 1-component vertex formats lets applications request only the necessary data when previously they had to request at least 2x more for 8 and 16-bit data types. The unorm8x4-bgra format makes it slightly more convenient to load BGRA-encoded vertex colors while keeping the same shader.
Adds additional vertex formats not present in the initial release of WebGPU due to lack of support or old macOS versions (which are no longer supported by any browser). The 1-component vertex formats lets applications request only the necessary data when previously they had to request at least 2x more for 8 and 16-bit data types. The unorm8x4-bgra format makes it slightly more convenient to load BGRA-encoded vertex colors while keeping the same shader.