ISSUE-2: Callback time parameter needs definition

callback-value

Callback time parameter needs definition

State:
CLOSED
Product:
Request Animation Frame
Raised by:
Cameron McCormack
Opened on:
2011-05-18
Description:
We need to decide what the time parameter passed in to callbacks actually represents -- the time at which the "sample all animations" algorithm starts, the time of the next display refresh, or something else.
Related Actions Items:
No related actions
Related emails:
  1. Re: Semantics of the time argument on rAF's FrameRequestCallback (from nduca@chromium.org on 2012-05-09)
  2. Re: Semantics of the time argument on rAF's FrameRequestCallback (from bzbarsky@MIT.EDU on 2012-05-09)
  3. [requestAnimationFrame] Specifying animationStartTime (from jmann@microsoft.com on 2012-04-03)
  4. TPAC 2011 Web Performance WG 2011-11-01 (from jmann@microsoft.com on 2011-11-09)
  5. [minutes] 20110727 Web Performance WG Teleconference #43 (from jmann@microsoft.com on 2011-07-27)
  6. [RequestAnimationFrame] Summary of open issue status (from jamesr@google.com on 2011-07-26)
  7. [minutes] 20110720 Web Performance WG Teleconference #42 (from jmann@microsoft.com on 2011-07-20)
  8. [minutes] 20110706 Web Performance WG Teleconference #40 (from jmann@microsoft.com on 2011-07-06)
  9. [RequestAnimationFrame] Regarding ISSUE-2, Vsyncing and psychology. (from jan@linnebank.nl on 2011-06-30)
  10. [minutes] 20110629 Web Performance WG Teleconference #39 (from jmann@microsoft.com on 2011-06-30)
  11. ISSUE-2 (callback-value): Callback time parameter needs definition [Request Animation Frame] (from sysbot+tracker@w3.org on 2011-05-18)

Related notes:

For now it's up to the UA to pick a good time value. In the future if we find an improvement for ISSUE-3 we can revisit, but I think leaving this vague for now is OK.

James Robinson, 8 Feb 2012, 23:51:10

Fixed in 458:4843fb42912f

James Robinson, 10 May 2012, 21:44:49

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Yoav Weiss <yoav@yoav.ws>, Todd Reifsteck <toddreif@microsoft.com>, Ilya Grigorik <igrigorik@google.com>, Chairs, Philippe Le H├ęgaret <plh@w3.org>, Xiaoqian Wu <xiaoqian@w3.org>, Staff Contacts
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