Posted by MarcoNL on Oct 27, 2021; 7:59am
URL: https://forum.jogamp.org/Incorrect-context-on-GLCanvas-drawable-tp4041391p4041407.html

Hello Martin,

thanks for your feedback.

I had read your post before, but my problem seems to be a bit different:

In fact, my application's vtkJoglCanvasComponent, in turn using JOGL's GLCanvas, is "sometimes" picking up an OpenGL 1.1 GLContext, and in those cases VTK crashes. The GLProfile seems to be always correct.

One question for the JOGL guys: I've noticed that vtkJoglCanvasComponent creates GLCanvas like this:

GLCanvas joglCanvas = new GLCanvas(new GLCapabilities(GLProfile.getMaximum(true)));

As far as I can see, VTK doesn't pass any GraphicsDevice to GLCanvas.

So, in this situation, will the GraphicsConfiguration upon which I create my root JFrame (i.e., the JFrame containing the GLCanvas containers, hence in turn also the GLCanvas itself) be relevant for the capabilities of the GLCanvas in terms of the GLContext it will be able to create?

Since my issue happens when I create a new root JFrame for my GLCanvas, I have the feeling the involved GraphicsConfigurations may have an influence.

Please notice that on my test PC I have multiple screens. However, my crash also happens on other single-screen PCs I have tested.

Let me know please.
Thanks and best regards,

Marco Sambin