1878317 - WebGPU demo (https://react-webgpu-samples.vercel.app/ndc-triangle) doesnt draw anything and there is no error in console

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebGPU, defect, P1)

Description

[Mayank Bansal]

Go to https://react-webgpu-samples.vercel.app/ndc-triangle

AR: Nothing is drawn on the screen
ER: triangle should draw. Chrome renders the triangle.

Surprisingly, there is no error in the console

Comment 1

[Bob Hood [:bhood]]

WebGPU is unreleased tech. Dropping Severity to S3 to remove from org tracking.

Comment 2

[Erich Gubler [:ErichDonGubler] (he/him)]

NI'ing for root cause investigation, no promises on ETA.

Comment 3

[Erich Gubler [:ErichDonGubler] (he/him)]

Attachment: bug-1878317-native-repro.zip

I've created what I believe is an equivalent to what the page does in native WGPU code (see new attachment titled bug-1878317-native-repro.zip). I think this eliminates quite a bit of space in which this issue could be caused; I suspect either Float32Array interop. with the JS runtime, or a presentation issue on the canvas element.

Comment 4

[Erich Gubler [:ErichDonGubler] (he/him)]

This WFM now. 😅

Comment 5

[Mayank Bansal]

Bisection points to:

Bug 1910150: Update wgpu to 9c6ae1be (2024-7-31) r=webgpu-reviewers,supply-chain-reviewers,ErichDonGubler
Differential Revision: https://phabricator.services.mozilla.com/D218695