OS X. Rectangle blinks while resizing

[pehcha]

Hello,

I created a very simple QML file MyRectangle.qml. Its content is:

@import QtQuick 2.0

Rectangle {
id: root
width: 300; height: 500
color: "green"

Rectangle {
    id: child
    height: root.height / 2
    anchors { top: parent.top; left: parent.left; right: parent.right }
    color: "blue"
}

}
@

If I run the file with qmlscene on Windows everything goes fine. But when I run the same on OS X 10.7 (on virtual machine):

> qmlscene MyRectangle.qml

I got strange weird blinking when I try to resize a window. I recorded the blinking. It can be seen on this video: http://youtu.be/8psqoRixSzI

This strange behavior reproduces only on OS X. Unfortunately I can't test it on real MacBook therefore I test it only my virtual machine.
Here is my specs:

VM: VMWare Workstation 9.0.1
Guest OS: OS X 10.7.1
Qt: 5.1.1

So does anybody face this problem or this is a known bug? Could anybody tell me what am I doing wrong?

Thanks

[pehcha]

For anyone who might be interested I got rid of the annoying flittering by adding multi-sampling to qlmscene:

> qmlscene --multisample MyRectangle.qml

Everything re-sized smoothly but slowly distinctly with this option turned on.

By the way you can enable multi-sampling on QWindow class and its derivatives in your application by customizing its format:

@QQuickView view;
view.setSource(QUrl("/path/to/MyRectangle.qml"));
QSurfaceFormat surfaceFormat(view.format());
surfaceFormat.setSamples(8);
view.setFormat(surfaceFormat);@