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Camera in OpenGL

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From Nehe homepage
(The last one with quaternions)
and from gamedev
Good luck

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you can use the method gluLookAt().

void gluLookAt(camera_x,camera_y,camera_z, centerx, centery, centerz, upvector_x, upvector_y, upvectorz);

A usage would be

void Render()
gluLookAt(0.0f, 3.0f,-5.0f,
0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f);


// This code should position the camera at [0, 3, -5], looking at
// the center of the world [0, 0, 0], with the up direction along the
// positive y axis. Then draw a solid cube at the center.

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