Introduction - If you have any usage issues, please Google them yourself
1.Draw 3D solid objects!
2.Rotate the solid objects!
3.Scale the objects using the toolbar ScaleBar.
4.Select solid objects!
A 3D Object Picking Technique that Uses OpenGL\A 3D Object Picking Technique that Uses OpenGL - CodeGuru.mht
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A 3D Object Picking Technique that Uses OpenGL