GLUT (pronounced like the glut in gluttony) is the OpenGL Utility Toolkit, available for C, C++, FORTRAN, and Ada. GLUT is a window system independent toolkit for OpenGL that implements a simple windowing API. Because of its ease of use, it is often used to learn how to write programs with OpenGL. ...

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Editing the pixels of a rendered image

I want to render a simple OpenGL scene as usual, but then I want to superimpose a small image of my own (such as from a bitmap file) on top of the render, such that this image always shows. For ...
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Invalid coordinates returned by glutMouseFunc()

I am using GLUT's glutMouseFunc() function to retrieve the coordinates of mouse clicks. I want to move the object on that coordinate to another coordinate. But when I click on the object the ...
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FreeGLUT keyboard IO timing and synchronization

Using FreeGLut's keyboard callbacks, glutKeyboardFunc(); glutKeyboardUpFunc(); glutSpecialFunc(); glutSpecialUpFunc(); When in the glutMainLoop pipeline do these functions get called? In other ...