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    I changed the PointToLineDistance3D function, now...

    I changed the PointToLineDistance3D function, now it works well. but the problem now is that I have my own camera, so I load its projection and modelview matrices when I am doing glUnProject.
    as you...
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    mouse picking in opengl using `gluUnProject`

    I have a scene that I am rendering couple of cubes in it with openGL (program structure is not using GLUT,it is in win32 program structure but I just draw cubes with `glutSolidCube`)
    now I want to...
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