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Re: [sensors] Define processing model

From: Tobie Langel via GitHub <sysbot+gh@w3.org>
Date: Mon, 22 May 2017 12:22:01 +0000
To: public-device-apis-log@w3.org
Message-ID: <issue_comment.created-303084515-1495455720-sysbot+gh@w3.org>
Well, for WebVR, for example, there pretty much will be a redraw for every frame, so I'm not sure avoiding to cause redundant redraws is something we should optimize for here. Which is not to say it might not be an issue (as mentioned in crbug) for other use cases.

You say that this proposed solution is applicable to any modern browser engine, but we haven't heard from anyone else on this topic but Chrome engineers. Furthermore, during the initial TAG review, @slightlyoff expressed serious performance concerns about the design which is now again proposed. I had imagined that the animation frame based design would help alleviate these issues. Now that we're back to the previous design, we need to take this feedback in account again.

Maybe it turns out that it's really not an issue, but we still need to do due diligence.

The crbug also seems to discuss latency issues, and I'd like to make sure we're really hitting industry requirements here, because if we don't, we'll literally make people sick.

All in all, it doesn't seem such a huge deal to ponder such a massive redesign organization when e've been spending the last 6 months on a solution that was supposed to fix the problems of the solution we now claim has got any.

Maybe going back to the first solution is the right choice, but I don't think this is something that should be decided on a whim without seriously considering all its aspects.

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Please view or discuss this issue at https://github.com/w3c/sensors/issues/198#issuecomment-303084515 using your GitHub account
Received on Monday, 22 May 2017 12:22:08 UTC

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