Requested OpenGL version 330, got version 300 about moderngl HOT 9 CLOSED

Can you share any code here? I don't even know what you are doing. You are trying to detect a context created by this library? Need a lot more information here.

Are you talking about https://github.com/angeloskath/simple-3dviz ?

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maybe the window does not require a high OpenGL version and the system provides a 3.0.
https://github.com/angeloskath/simple-3dviz/blob/master/simple_3dviz/window/wx.py#L40-L43

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Mabe a bug in the simple-3dviz project?

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Mabe a bug in the simple-3dviz project?

I need to find light intensity incident on the object, visit possible to compute in simple_3dviz , or any other library

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Asking again: Can you create an issue in the simple-3dviz project and link this one?

You are not providing much information here, so I don't think it's possible to progress here. The other project probably have a better idea what the problem is. It's WX creating the context, not moderngl.. so It's not really moderngl related at all.

The problem is that WX doesn't create a context with the right version. That code is not on our side. It could also be a driver issue on your side.

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angeloskath/simple-3dviz#1

I tried this solution, but it seems the issue with moderngl....

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it is not really possible as moderngl is not involved in the opengl context creation.

you can simply check the version by placing this code right before the moderngl.create_context call:

from OpenGL import GL; GL.glGetString(GL.GL_VERSION)

you might need to pip install pyopengl for the code above to work

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to understand better the problem you should know that:

• in order to have OpenGL available to load, there must be a window and opengl context created.
• when a window is created it must select a pixel format and create an OpenGL context.
• at this point the OpenGL functions are already tight to a version and driver implementation.

the above happens without moderngl being present

• moderngl is a library using the OpenGL methods provided by glcontext.
• glcontext is a very simple module, in your case it just loads the already existing OpenGL methods and pass it to moderngl. (glxGetProcAddr and similar)
• moderngl calls glGetIntegerv for the major and minor versions and finds 3 and 0 respectively.
• at this point there is no way to get a higher version by calling any other gl methods.

to fix the issue you should check the gl version with the snippet pasted above right after the window creation and tweak the window creation parameters until you get your 4.6.0 NVIDIA 470.182.03 version reported.

PS: if you use X11 forwarding you might not get it unless setting LIBGL_ALWAYS_INDIRECT properly.

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