Posted by Sven Gothel on Dec 26, 2019; 2:31pm
URL: https://forum.jogamp.org/NEWT-blinking-on-macOS-when-resizing-tp4040200p4040204.html

On 12/26/19 4:32 AM, xor [via jogamp] wrote:
> I'm using macOS Mojave 10.5.2, with jogl 2.3.2.
>
> When resizing the window, it shows blinks with window background color (gray)
> and game graphics.
>
> Not sure whether this is fixed in 2.4.0. Thanks.

Thank you for testing.

Probably not fixed in 2.4.0, but I will check its quality.
Quite a few changes were made in the MacOS code path.

Currently only NEWT has a 'pause animation'
for certain operations when using an AnimatorControl.
But even on X11 NEWT resizing flickers,
as we don't stop rendering in general.

On MacOS using AWT the situation is a little bit more complex,
as OpenJDK uses offscreen compositing in a fancy way,
which does not really allow us to control the FBO.
From memory we even have to issue a compositing animator
to achieve rendering to VSYNC - that explains that issue as well.
Bottom line: On MacOS using AWT is no more onscreen direct rendering.
Only NewtCanvasAWT guarantees direct onscreen rendering for all platforms.

In don't know which TextRenderer you are referring to.

I only support the Graph based text rendering from here on,
others are welcome to refactor the old AWT based text renderer
to make it AWT agnostic.