which version of mac os can this lwjgl3-awt support

[hubert-hy]

Hi,

I have a project that using swing and awt and lwjgl2. After I move to lwjgl3 with lwjgl3-awt canvas, everything seems working, except some old version like high sierra, the canvas get artifacts when resizing. So my question is, does this lwjgl3-awt has any OS requirement? what version of mac os has 100% support?

Thanks

Hubert Yang

[SWinxy]

AFAIK the minimum version would be based on the graphics API you're using (OpenGL or Vulkan), or the Java JDK requirements. As for the graphical artifacts, could you elaborate what you mean (or have a short clip to show)?

[hubert-hy]

idk version and OpenGL version are the same.
JDK version is 12
OpenGL version is 2.1
I have tested on Sierra, High Sierra, Mojave, Catalina, Big sur, so far Mojave, Catalina and Big sur are ok, there two get trouble when I resize the canvas. Here is the screen recording from Sierra.

It is a google share link https://drive.google.com/file/d/1GFzVaomcPX0n2mdyYxBJ10r9CItDZvSI/view?usp=sharing

[hubert-hy]

Hi Here I attach for picture resized and regular view in Hi sierra, and same in Mojave,




since the canvas only open initGL() and paintGL() two interfaces, you can see the resizing in Hi Sierra something is not right .

Thanks,

Hubert

[SWinxy]

OpenGL has a lot of quirks that I am not familiar with. @httpdigest might know something.

[hubert-hy]

Thanks, I will contact with him.

Hubert Yang

[SWinxy]

Nah. Just wait. He'll respond eventually.

[httpdigest]

I can't say anything about it. I neither have a mac to test/verify, nor did I do the macOS implementation.
@tisoft did all of the macOS implementation. Probably we should ask him. :)

[tisoft]

Do you have a simple reproducer project?

In principle all current macOS versions should work. I have only tested on big sur, though, since that is the inly one I am currently using.

[hubert-hy]

Sure, I will try to create simple example for that.

Thanks

[hubert-hy]

Hi, I just use the awttest example and run it under Catalina and High Sierra, Here is the screen shot,





you can see In High Sierra, both resizing big and small causing the canvas get wrong width and height. but Catalina canvas always return correct size.

Thanks

[SWinxy]

I've not been able to run the demos on my mac for some reason, despite my other engine working. Strange.

[OndrejSpanel]

I am now trying this on MacBook Air (Early 2015), Intel Core i5 Dual Core, Intel HD Graphics 6000

I have tried running AWTTest, AWTThreadTest and Core32Test, with all of them I see the same result:

• without -XstartOnFirstThread it crashes
• with -XstartOnFirstThread OpenGL is reported as version 0.0 and no Window appears

The computer seems to support OpenGL 4.1. I am able to run non-AWT LWJGL applications on this Mac, but I need to provide -Djava.awt.headless for them if they use any AWT (including IOImage or awt.Color), otherwise all OpenGL calls just return 0 (including glGetError, which makes things very confusing).

[lqyaos]

I also have the same problem, whether mac and javafx and lwjgl are contradictory, can you help me solve this doubt

[SWinxy]

Incidentally I'd been looking up minimum version documentation without remembering this was still a lingering question. For Vulkan, the minimum is 10.11 (Mac OS X El Capitan), since MoltenVK runs on top of the Metal API that was introduced in 10.11. From what I can tell from looking at the code, the minimum for OpenGL is 10.5 (Mac OS X Leopard). I've not touched the OpenGL code (I don't know OpenGL), so I may be wrong.
The dependencies of this library don't provide documentation on the minimum OS version it can theoretically work on (LWJGL3, AWT and JAWT). Let me know if there are any issues with my analysis.

These artifacts @hubert-hy showed are definitely a bug, and look like they're due to resizing and Swing isn't refreshing the pixels. Could you create a new issue with screen recordings of them for examination? I'd like to see both correct behavior in the modern macOS versions, and the LWJGL2 version if possible.
Same for @OndrejSpanel, could you also create a separate issue for your issue?