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/ IRIX Base Documentation 2001 May / SGI IRIX Base Documentation 2001 May.iso / usr / share / catman / g_man / cat3 / OpenGL-ftn / fglloadidentity.z / fglloadidentity
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Text File  |  2001-04-17  |  3.7 KB  |  75 lines
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  4. ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy((((3333GGGG))))            OOOOppppeeeennnnGGGGLLLL RRRReeeeffffeeeerrrreeeennnncccceeee            ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy((((3333GGGG))))
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  8. NNNNAAAAMMMMEEEE
  9.      ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy - replace the current matrix with the identity matrix
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  12. FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  13.      SUBROUTINE ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy( )
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  16. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  17.      ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy replaces the current matrix with the identity matrix.  It
  18.      is semantically equivalent to calling ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx with the identity
  19.      matrix
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  24.                                 (                 )
  25.                                    1    0    0    0
  26.                                 |                 |
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  28.                                 |   0    1    0    0  |
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  30.                                 |                 |
  31.                                    0    0    1    0
  32.                                 |                 |
  33.  
  34.                                 ( 0   0   0   1  )
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  37.      but in some cases it is more efficient.
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  39. EEEERRRRRRRROOOORRRRSSSS
  40.      GGGGLLLL____IIIINNNNVVVVAAAALLLLIIIIDDDD____OOOOPPPPEEEERRRRAAAATTTTIIIIOOOONNNN is generated if ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy is executed between
  41.      the execution of ffffggggllllBBBBeeeeggggiiiinnnn and the corresponding execution of ffffggggllllEEEEnnnndddd.
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  43. AAAASSSSSSSSOOOOCCCCIIIIAAAATTTTEEEEDDDD GGGGEEEETTTTSSSS
  44.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____MMMMAAAATTTTRRRRIIIIXXXX____MMMMOOOODDDDEEEE
  45.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____CCCCOOOOLLLLOOOORRRR____MMMMAAAATTTTRRRRIIIIXXXX
  46.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____MMMMOOOODDDDEEEELLLLVVVVIIIIEEEEWWWW____MMMMAAAATTTTRRRRIIIIXXXX
  47.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____PPPPRRRROOOOJJJJEEEECCCCTTTTIIIIOOOONNNN____MMMMAAAATTTTRRRRIIIIXXXX
  48.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____TTTTEEEEXXXXTTTTUUUURRRREEEE____MMMMAAAATTTTRRRRIIIIXXXX
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  51. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  52.      ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx, ffffggggllllMMMMaaaattttrrrriiiixxxxMMMMooooddddeeee, ffffggggllllMMMMuuuullllttttMMMMaaaattttrrrriiiixxxx, ffffggggllllPPPPuuuusssshhhhMMMMaaaattttrrrriiiixxxx
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  71.                                                                         PPPPaaaaggggeeee 1111
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