- set the current color index




C SPECIFICATION


PARAMETERS

       _param1  Specifies  the  new  value  for the current color
                index.



C SPECIFICATION


PARAMETERS

       _param1
              Specifies a pointer to  a  one-element  array  that
              contains the new value for the current color index.


DESCRIPTION

       glIndex updates the current (single-valued)  color  index.
       It takes one argument, the new value for the current color
       index.

       The current index is stored  as  a  floating-point  value.
       Integer  values  are  converted directly to floating-point
       values, with no special mapping.  The initial value is  1.

       Index  values outside the representable range of the color
       index buffer are not clamped.  However, before an index is
       dithered  (if enabled) and written to the frame buffer, it
       is converted to fixed-point .  Any  bits  in  the  integer
       portion  of  the  resulting  fixed-point value that do not
       correspond to bits in the frame buffer are masked out.


NOTES

       glIndexub and glIndexubv are available only if the GL ver-
       sion is 1.1 or greater.

       The current index can be updated at any time.  In particu-
       lar, glIndex can be called between a call to  glBegin  and
       the corresponding call to glEnd.


ASSOCIATED GETS

       glGet with argument GL_CURRENT_INDEX


SEE ALSO

       glColor, glIndexPointer



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