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Text File  |  2002-10-03  |  5.7 KB  |  142 lines
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  4. ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx((((3333GGGG))))              OOOOppppeeeennnnGGGGLLLL RRRReeeeffffeeeerrrreeeennnncccceeee              ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx((((3333GGGG))))
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  8. NNNNAAAAMMMMEEEE
  9.      ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxxdddd,,,, ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxxffff - replace the current matrix with the
  10.      specified matrix
  11.  
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  13. FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  14.      SUBROUTINE ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxxdddd( CHARACTER*8 _m )
  15.      SUBROUTINE ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxxffff( CHARACTER*8 _m )
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  18. PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
  19.      _m  Specifies a pointer to 16 consecutive values, which are used as the
  20.         elements of a 4 x 4 column-major matrix.
  21.  
  22. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  23.      ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx replaces the current matrix with the one whose elements are
  24.      specified by _m.  The current matrix is the projection matrix, modelview
  25.      matrix, or texture matrix, depending on the current matrix mode (see
  26.      ffffggggllllMMMMaaaattttrrrriiiixxxxMMMMooooddddeeee).
  27.  
  28.      The current matrix, M, defines a transformation of coordinates.  For
  29.      instance, assume M refers to the modelview matrix.  If
  30.      v = (v[0],v[1],v[2],v[3]) is the set of object coordinates of a vertex,
  31.      and _m points to an array of 16 single- or double-precision floating-point
  32.      values m[0],m[1],...,m[15], then the modelview transformation M(v) does
  33.      the following:
  34.  
  35.  
  36.  
  37.                        (     m[0]      m[4]       m[8]        m[12] )      (      v[0] )
  38.  
  39.                        |                              |      |       |
  40.                             m[1]       m[5]        m[9]        m[13]              v[1]
  41.                        |                              |      |       |
  42.                 M(v) =                                  x
  43.                        |     m[2]       m[6]        m[10]        m[14]  |      |      v[2] |
  44.  
  45.                        |                              |      |       |
  46.                         m[3]   m[7]   m[11]   m[15]          v[3]
  47.                        (                             )     (      )
  48.  
  49.  
  50.  
  51.  
  52.      Where ``x'' denotes matrix multiplication.
  53.  
  54.      Projection and texture transformations are similarly defined.
  55.  
  56. NNNNOOOOTTTTEEEESSSS
  57.      While the elements of the matrix may be specified with single or double
  58.      precision, the GL implementation may store or operate on these values in
  59.      less than single precision.
  60.  
  61. EEEERRRRRRRROOOORRRRSSSS
  62.      GGGGLLLL____IIIINNNNVVVVAAAALLLLIIIIDDDD____OOOOPPPPEEEERRRRAAAATTTTIIIIOOOONNNN is generated if ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx is executed between
  63.      the execution of ffffggggllllBBBBeeeeggggiiiinnnn and the corresponding execution of ffffggggllllEEEEnnnndddd.
  64.  
  65. AAAASSSSSSSSOOOOCCCCIIIIAAAATTTTEEEEDDDD GGGGEEEETTTTSSSS
  66.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____MMMMAAAATTTTRRRRIIIIXXXX____MMMMOOOODDDDEEEE
  67.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____CCCCOOOOLLLLOOOORRRR____MMMMAAAATTTTRRRRIIIIXXXX
  68.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____MMMMOOOODDDDEEEELLLLVVVVIIIIEEEEWWWW____MMMMAAAATTTTRRRRIIIIXXXX
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  72.                                                                         PPPPaaaaggggeeee 1111
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  79. ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx((((3333GGGG))))              OOOOppppeeeennnnGGGGLLLL RRRReeeeffffeeeerrrreeeennnncccceeee              ffffggggllllLLLLooooaaaaddddMMMMaaaattttrrrriiiixxxx((((3333GGGG))))
  80.  
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  83.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____PPPPRRRROOOOJJJJEEEECCCCTTTTIIIIOOOONNNN____MMMMAAAATTTTRRRRIIIIXXXX
  84.      ffffggggllllGGGGeeeetttt with argument GGGGLLLL____TTTTEEEEXXXXTTTTUUUURRRREEEE____MMMMAAAATTTTRRRRIIIIXXXX
  85.  
  86.  
  87. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  88.      ffffggggllllLLLLooooaaaaddddIIIIddddeeeennnnttttiiiittttyyyy, ffffggggllllMMMMaaaattttrrrriiiixxxxMMMMooooddddeeee, ffffggggllllMMMMuuuullllttttMMMMaaaattttrrrriiiixxxx, ffffggggllllPPPPuuuusssshhhhMMMMaaaattttrrrriiiixxxx
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  138.                                                                         PPPPaaaaggggeeee 2222
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