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What's GL ?

Ever since the 16-Bit Computers there has been programs that use
'RayTracing'. It literary makes a computer follow a beam of light
in a 'vitual' computer-generated room with object(s). A regular 16 Bit
computer needs for every picture more than 8 hours to complete this job!

Since those days, a lot has changed ! A very cutting edge
computer corporation named Silicon Graphics designed a platform
for using those very advanced graphic techniques! The problem is that
those applications only work on very high end workstations : $40,000

The change for us 'low-endians' came when a few years ago some high speed
3D cards became avaliable, and OpenGL 'ports' from the SGI to the PC started.