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By the way, were it your own games written in OpenGL?
I have written one game in FTN95+Clearwin+OpenGL
(my kids were shocked in disbelief LOL Me too, BTW,
that's how good all look in OpenGL) but ne ...

I have an Intel HD 4000, no other graphics card i could switch to. Processor is an i5. I've never run into problems with OpenGL before (did some SDL-Projects in C++, wxWidgets works like a charm too, ...

Did as you said, and different computer/different graphic card works like a charm. Not really satisfying, but at least it's not an issue in the code. Thanks too all for the ideas.

Thank you for your comments on this so far.

Dan, you may be right, but the floating point exception is most probably a divide by zero error, and the original poster has half diagnosed what is caus ...

Graphic driver is up to date. Also writing SDL/OpenGL Applications in C works like a charm. It appears to me that the window size during minimization (0x0) is passed to OpenGL when I minimize the appl ...

Good evening,

I've run into a problem when implementing OpenGL through Clearwin. Every time I minimize the window, the application crashes on a floating point exception. If not, it renders garbage ...

Thank you very much aebolzan, this seems to be exactly what I'm looking for. I'll try it out.

Unfortunately I'd need an automated way of exporting the plot. So you say it's not possible?

Greetings,

I have an application using Simpleplot and would like to export the plots preferably as PNG, or any other format, whatever is possible. I tried using create_graphics_region@/select_graph ...

Found my error, if glRenderMode is called like a subroutine before, FTN95 refuses to see it as a function.

Declaration in opengl.ins is correct; this is my code:

! Includes
use gl_data
include <opengl.ins>

! Variables
integer :: buffer(512)
integer :& ...

Good evening,

For selecting objects in OpenGL I need to get the return value of glRenderMode, which doesn't seem to be possible with FTN95. The compiler tells me that glRenderMode is a subroutine, ...

I'm sorry, yes, the prototypes of the C++ functions are defined with extern C.

To
__declspec(dllexport)

Do you have access to the Fortran or C++ code to be able to modify either ?
Have you been able to identify where the 100 mb is coming from? You have not yet indicated you have identified the source ...