W3C home > Mailing lists > Public > public-web-perf@w3.org > February 2013

[RequestAnimationFrame] ally: background animation rate: do not throttle

From: Jonathan Chetwynd <jay@peepo.com>
Date: Mon, 11 Feb 2013 12:38:14 +0000
Message-ID: <5118E636.9010501@peepo.com>
To: public-web-perf@w3.org
"If the page is not currently visible, animations on that page can be 
throttled heavily"

There are a range of web applications that the user would not wish or 
expect to be so effected.

These might for instance include motion detection, when using a remote 
webcam, such as perhaps a baby monitor**.

Others such as eyetracking have accessibility considerations. Though a 
background process, it has the potential to offer access to the wider 
web, desktop and even the operating system, whilst offering good 
opportunities for personalisation, education and further development.

More generally it may be understood that when trying to visualise 
complex phenomena it is unrealistic to expect all aspects to be rendered 
in a single image, and that the user may wish to move between renders 
that are being updated concurrently.

It may also be considered that the general user is aware of the need to 
close windows as applications slow, and benefits from this awareness.

For this reason I propose that this concept needs further deliberation.

kind regards

Jonathan Chetwynd
Eyetracking in HTML5

**partner, pet, flat, star, traffic......
Received on Monday, 11 February 2013 12:38:41 UTC

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