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Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Oct 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Android
Pri: 3
Type: Bug
Proj-XR

Blocking:
issue 747159



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WebVR: use early waitForPreviousRender

Project Member Reported by klausw@chromium.org, Jul 28 2017

Issue description

We're getting weird timing for WebVR with frames being rendered in a slow/fast pattern, apparently sending GPU render commands for the current frame interferes with the previous frame and delays it due to unfortunate GPU scheduling.
 
Labels: -M-61
Labels: -Pri-1 Pri-3
Status update - this bug was set up to track the change from https://chromium-review.googlesource.com/c/chromium/src/+/592587 . At this point this approach is on hold, it's not really a solution to the root cause. Also, it would need further testing due to risk of performance regressions in some WebVR apps, the current timing may be better for some.

Comment 3 by klausw@chromium.org, Oct 18 2017

Status: WontFix (was: Started)
This is no longer relevant, the fast/slow pattern was fixed by recent DrawBuffer sync changes, see https://chromium-review.googlesource.com/707354 and r507688 .
Components: Blink>WebXR

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