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Re: [fltk.coredev] GL root Fl_Gl_Window::draw

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Re: GL root Fl_Gl_Window::draw Manolo Sep 08, 2022  
 
I understood the question asked by Gonzalo is to use both OpenGL 4 and the new Fl_OpenGL_Graphics_Driver
which is GL 2-based under macOS.

If that is true, my reply was this is impossible for the reason given in the doc:

On the macOS platform, ……. FLTK creates contexts for OpenGL versions 1 and 2 without the FL_OPENGL3 flag and for OpenGL versions 3.2 and above with it.

Which means, you have to choose between using the old GL and then Fl_OpenGL_Graphics_Driver is possible, or the new GL (3.2 and above)
and then Fl_OpenGL_Graphics_Driver is impossible.

Notice this restriction is macOS-specific. The other 3 platforms allow mixing.

If Gonzalo asked something else, then my reply makes no sense necessarily.

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