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OpenGL Support module

Detailed Description

This module provides wrapper functions for a couple of OpenGL functions which simplify the way to pass Eigen's object to openGL. Here is an exmaple:

* // You need to add path_to_eigen/unsupported to your include path.
* #include <Eigen/OpenGLSupport>
* // ...
* Vector3f x, y;
* Matrix3f rot;
*
* glVertex(y + x * rot);
*
* Quaternion q;
* glRotate(q);
*
* // ...
*