Two can live as cheaply as one for half as long
   -  Howard Kandel

Concept 3.2f : Drawing Triangle Strips in 3D Space
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Idea:
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OpenGL provides GL_TRIANGLE_STRIP to render a 
triangle strip.

When glBegin(GL_TRIANGLE_STRIP) is called it
draws a series of triangles using vertices V0,
V1, and V2, then V2, V1, V3, then V2, V3, V4
and so on.  The ordering is to ensure that the
triangles are all drawn with the same orientation
so that the strip can correctly form part of a
surface.  n must be atleast 3 for anything to be
drawn.