gl2 library routines for faster graphics

[Homayoon Akhiani]

	We are doing real-time simulation using iris 3000 series.
	In the gl2 library I found routines which are not documented
	in the manuals, but are very fast:
	gl_sincos() calculates sin and cos of a angle in about 10 times 
		    faster than the math and floating point library.
        gl_identifymatrix() whichpush and loads an identity matrix.

	Does anyone has any information about the routines that are 
  	in the gl library which is not documented ?

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   Homayoon Akhiani
   University of Illinois at Urbana/Champaign
   Aviation Research Lab
  

   <ha90353 at uxa.cso.uiuc.edu>
   <akhiani at s.cs.uiuc.edu>
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