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/ IRIX Base Documentation 1998 November / IRIX 6.5.2 Base Documentation November 1998.img / usr / share / catman / g_man / cat3 / OpenGL-ftn / fglclearindex.z / fglclearindex
Text File  |  1998-10-20  |  3KB  |  68 lines
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  4. ffffggggllllCCCClllleeeeaaaarrrrIIIInnnnddddeeeexxxx((((3333GGGG))))              OOOOppppeeeennnnGGGGLLLL RRRReeeeffffeeeerrrreeeennnncccceeee              ffffggggllllCCCClllleeeeaaaarrrrIIIInnnnddddeeeexxxx((((3333GGGG))))
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  8. NNNNAAAAMMMMEEEE
  9.      ffffggggllllCCCClllleeeeaaaarrrrIIIInnnnddddeeeexxxx - specify the clear value for the color index buffers
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  12. FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  13.      SUBROUTINE ffffggggllllCCCClllleeeeaaaarrrrIIIInnnnddddeeeexxxx( REAL*4 _c )
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  16. PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
  17.      _c  Specifies the index used when the color index buffers are cleared.
  18.         The initial value is 0.
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  20. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  21.      ffffggggllllCCCClllleeeeaaaarrrrIIIInnnnddddeeeexxxx specifies the index used by ffffggggllllCCCClllleeeeaaaarrrr to clear the color
  22.      index buffers.  _c is not clamped.  Rather, _c is converted to a fixed-
  23.      point value with unspecified precision to the right of the binary point.
  24.                                                          m
  25.      The integer part of this value is then masked with 2 -1, where m is the
  26.      number of bits in a color index stored in the frame buffer.
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  28. EEEERRRRRRRROOOORRRRSSSS
  29.      GGGGLLLL____IIIINNNNVVVVAAAALLLLIIIIDDDD____OOOOPPPPEEEERRRRAAAATTTTIIIIOOOONNNN is generated if ffffggggllllCCCClllleeeeaaaarrrrIIIInnnnddddeeeexxxx is executed between
  30.      the execution of ffffggggllllBBBBeeeeggggiiiinnnn and the corresponding execution of ffffggggllllEEEEnnnndddd.
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  32. AAAASSSSSSSSOOOOCCCCIIIIAAAATTTTEEEEDDDD GGGGEEEETTTTSSSS
  33.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____IIIINNNNDDDDEEEEXXXX____CCCCLLLLEEEEAAAARRRR____VVVVAAAALLLLUUUUEEEE
  34.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____IIIINNNNDDDDEEEEXXXX____BBBBIIIITTTTSSSS
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  37. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  38.      ffffggggllllCCCClllleeeeaaaarrrr
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  64.                                                                         PPPPaaaaggggeeee 1111
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