Bug 239458

Summary: Animation looping in AR even if not specified.
Product: WebKit Reporter: Kewal Gokuldas <kewalkishang>
Component: WebXRAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: dino, graouts, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 15   
Hardware: Unspecified   
OS: Unspecified   
URL: https://maple-summer-branch.glitch.me/

Description Kewal Gokuldas 2022-04-18 12:05:16 PDT
I am using Model-viewer to see an object in AR. But the animation on the object is looping in Quick look even if looping is not on.
Comment 1 Antoine Quint 2022-04-19 23:57:37 PDT
Hi Kewal, thanks for filing this bug. However, a testcase is necessary for us to diagnose this issue, please add one and we'll investigate.
Comment 2 Kewal Gokuldas 2022-04-20 11:13:08 PDT
https://maple-summer-branch.glitch.me/
Will this help ?(In reply to Antoine Quint from comment #1)
> Hi Kewal, thanks for filing this bug. However, a testcase is necessary for
> us to diagnose this issue, please add one and we'll investigate.
Comment 3 Antoine Quint 2022-04-20 11:23:45 PDT
That helps, thank you.
Comment 4 Antoine Quint 2022-04-20 11:38:15 PDT
Going by https://developer.apple.com/documentation/arkit/adding_an_apple_pay_button_or_a_custom_action_in_ar_quick_look, it looks like there isn't an option to control the animation behavior in the AR experience. I could be mistaken though, but I don't expect there is an actual bug here.
Comment 5 Dean Jackson 2022-04-20 13:46:07 PDT
Yeah, it seems this behaviour is specific to model-viewer's in-page implementation.
Comment 6 Kewal Gokuldas 2022-04-20 14:37:33 PDT
I see. So it will be a new feature to control animation in AR? Until then any animation from model-viewer will keep looping ?
Comment 7 Antoine Quint 2022-04-21 00:13:38 PDT
I don't know the particulars of model-viewer. I think in this case it might be more about the USDZ file which does not specify that the animation shouldn't be looping.

I'm told that you can codify that an animation should not be looping using "loopStartToEndTimeCode" in the USDZ file:

customLayerData = {
    string creator = "usdzconvert preview 0.62"
    bool loopStartToEndTimeCode = 0
}
Comment 8 Kewal Gokuldas 2022-04-23 08:20:45 PDT
THANKS !
Comment 9 Radar WebKit Bug Importer 2022-04-23 08:20:55 PDT
<rdar://problem/92217001>