Maybe, it's most diffcult problem in OpenGL(Try it)

[Kinicky]

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Like the diagram showing, the triangle will move from one side to another side of the window (not back and forth).Can anyone solve the problem for me? Thanks in advance!

[dorbie]

A solution has already been described in the beginners forum.

[gumby]

This is your prof. hi, when r u going ot pass up the assignment? I want you to do the assignement yourself. Stop cheating ;>