Mac OS X High Sierra

Hey guys,

apple is driving me nuts :/

Does anyone have a good idea what apple changed in it's latest OS regarding OpenGL?
It seems that when I use OpenGL the whole swing enviornment is going crazy.
Actually, I tried switching to Newt (with external windows) but it still doesn't do anything nice.
The Swing framerate drops significantly from around 20-30 fps to 1 frame per 5 seconds.

It would be great if you could give me a pointer where I can look.

The most crazy thing is, when I use Java8 instead of Apple's Java6 on high sierra it much better,
but I cannot switch to java8 ad hoc. This is planned for next year.

thanks in advance
Matthias

Hi

Maybe you have found some regressions in Java 1.9 under OS X High Sierra. Thank you for sharing your feedback.

What was wrong with NEWT?

Hi Julien,

nothing is wrong with newt. It's great, but I cannot switch so ad hoc, since I am mixing totally with swing.
That's why I stuck to the AWT implementation and I am stuck for now to java6 :/

The problem is that newt also doesn't solve the issue I am facing. Even the newt window is a separate one, it influences the swing rendering process....

Maybe you have a idea what I could try instead. I am willing to switch to newt if it fixes my high sierra problem ;)

thank you for help
Matthias

You can use an OpenJDK 1.8 build provided by AdoptOpenJDK, can't you? What about NewtCanvasAWT?

Hey Julien,

yes, we are testing OpenJDK8 since early alpha versions. The problem is that the performance is not even comparable to the AppleJDK :/
Unfortunately, NewtCanvasAWT didn't solve the issue on Java6. Is does drop down the rendering to a frame per 5 seconds too. So newt is only usable in jdk8 and jdk8 is pretty slow compared to jdk6 on mac.

I am a bit stuck. That's why I am asking if you guys know a bit more and what I could test additionally.

regards
Matthias

I understand your position but Apple Java is deprecated. I assume that only a subset of Java is slower in OpenJDK, can you be more accurate?