Heavy flickering on Retina Macs with Yosemite & NSVisualEffectView & overlay windows
Heavy flickering on Retina Macs with Yosemite & NSVisualEffectView & overlay windows
- Subject: Heavy flickering on Retina Macs with Yosemite & NSVisualEffectView & overlay windows
- From: Markus Spoettl <email@hidden>
- Date: Tue, 16 Sep 2014 16:28:53 +0200
Hello,
using Yosemite DP8 (first tested and observed with DP7), we get very heavy
flickering when animating a popup overlay window over a window whose content
consists of views sitting on NSVisualEffectViews
(NSVisualEffectBlendingModeWithinWindow) and with a transparent window title bar
and toolbar.
What happens is that the area behind the popup window that is being animated
into view (animating window frame and alpha) briefly blacks out with a opaque
completely black fill. Sometimes it resembles the shape of the popup window,
sometimes it doesn't, sometimes areas not covered by the popup window flicker.
This is on a MacBook Pro 15" Retina Mid 2012. On a non-retina MacBook 17" from
early 2011 no flickering is observable. To my knowledge the Retina MacBook
doesn't have a discrete graphics hardware, the non-retina one does.
Before I go an distill a reproducible test project - which could take a lot of
time if it turns out to be reproducible at all - I was wondering if someone else
noticed that too.
Regards
Markus
--
__________________________________________
Markus Spoettl
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