How to force pixels to hit the screen?

[Kevin Rushforth]

I see.

> Is there any way to wait for the rendering thread to settle and 
> process the commands produced by the app thread?

No guaranteed way that I know of; we run into a similar issue with our 
robot-based unit tests. Using an AnimationTimer and waiting for a few 
frames might work, but it sounds like you tried that?

-- Kevin


Using the Preloader

Mike Hearn wrote:
>
>     As long as you are doing any of the "heavy lifting" on the FX
>     application thread it will necessarily starve the rendering, since
>     the application thread is where animation is run and rendering is
>     triggered. Applications are encouraged to do computationally
>     expensive tasks or tasks that are subject to blocking (e.g.,
>     network reads) on a different thread.
>
>
> Yes, unfortunately one of the heavy tasks is FXMLLoader.load which 
> hits the threading issues I emailed about earlier.
>
> But I'm not sure I really understand this. I'm OK with my (non 
> interactive) splash being hung whilst the app thread goes off and do 
> other things, as long as it was able to draw at least one frame to the 
> screen. Is there any way to wait for the rendering thread to settle 
> and process the commands produced by the app thread?