Posted by MarcoNL on Oct 25, 2021; 10:27am
URL: https://forum.jogamp.org/Incorrect-context-on-GLCanvas-drawable-tp4041391p4041401.html

Hi again,

do you think the GraphicsConfiguration upon which I create my "root" JFrame (i.e., the one finally containing my GLCanvas-based panel) may make a difference with respect to the GLContext that GLCanvas's init() callback is able to return?
My approach in creating JFrames in my application is that I identify the GraphicsDevice corresponding to my target screen (in case of a multi-screen environment), then I use this GraphicsConfiguration:

GraphicsDevice myTargetScreenDev = ...;
GraphicsConfiguration myGraphicsConfig = myTargetScreenDev.getDefaultConfiguration();
JFrame myRootJFrame = new JFrame(myGraphicsConfig);
...

If I invoke myTargetScreenDev.getConfigurations(), I obtain 6 different GraphicsConfiguration's for my target GraphicsDevice. However, just inspecting these 6 different instances, I am unable to tell what is different in each instance.

Do you think it is worth investigating more about this, or creating my root JFrame on myTargetScreenDev.getDefaultConfiguration() is safe enough for JOGL purposes?

Thanks in advance for your comments.
Best regards,

Marco Sambin