Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
gl_trisetcolorlookup(3)	      Svgalib User Manual      gl_trisetcolorlookup(3)

NAME
       gl_trisetcolorlookup, gl_trigetcolorlookup - manages a color lookup ta-
       ble for shadowing

SYNOPSIS
       #include	<triangle.h>

       void gl_trisetcolorlookup(int i,	long color);
       long gl_trigetcolorlookup(int i);

DESCRIPTION
       gl_trisetcolorlookup  sets the color of an index	i in the table used in
       more than 256 color modes to interpolate	tables.

       Note that it is your responsibility to set all the  intermediate	 color
       values.

       You  can	 use this function to create the index table, but remember not
       to let i	go over	4096.

       gl_trigetcolorlookup retrieves a	previously set value from the table.

       Beware, these functions are not a direct	part of	the  svgalib  library.
       Instead their source is part of svgalib and can be found	in the threeD-
       kit/  subdirectory of the original svgalib distribution.	However, it is
       not installed in	the system by default, s.t. it is  unclear  where  you
       can find	it if your svgalib was installed by some linux distribution.

       In  case	 of  any such problem, simply get an svgalib distribution from
       the net.	Yo don't need to install it. Just make in the threeDkit/  sub-
       directory. As of	this writing, svgalib-1.2.12.tar.gz is the latest ver-
       sion   and   can	  be   retrieved   by	ftp  from  sunsite.unc.edu  at
       /pub/Linux/libs/graphics	and tsx-11.mit.edu at  /pub/linux/sources/libs
       which will most probably	be mirrored by a site close to you.

       The  functions  are  defined in the tri.o and triangl.o files (or their
       resp. sources) which you	must link to your program.

SEE ALSO
       vgagl(7), svgalib(7), threedkit(7), gl_striangle(3),  gl_swtriangle(3),
       gl_triangle(3),	 gl_trisetdrawpoint(3),	  gl_wtriangle(3),   plane(6),
       wrapdemo(6).

AUTHOR
       This manual page	was edited by Michael Weller  <eowmob@exp-math.uni-es-
       sen.de>.	 The  demos, the initial documentation and the whole threedkit
       stuff was done by Paul Sheer <psheer@icon.co.za>.

       Paper mail:
	      Paul Sheer
	      P	O BOX 890507
	      Lyndhurst
	      Johannesburg 2106
	      South Africa

       Donations (by check or postal order) will be appreciated	and  will  en-
       courage	further	development of this software. However this is strictly
       on a voluntary basis where this software	falls under  the  GNU  LIBRARY
       GENERAL PUBLIC LICENSE.

Svgalib	(>= 1.2.11)		  2 Aug	1997	       gl_trisetcolorlookup(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=gl_trigetcolorlookup&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

home | help