doc/glu.texi

   1 @c This is part of the Figl Reference Manual.
   2 @c Copyright (C) 2013 Andy Wingo and others
   3 @c See the file figl.texi for copying conditions.
   4
   5 @node GLU
   6 @chapter GLU
   7
   8 @menu
   9 * GLU API::                     The high-level interface to GLU.
  10 * Low-Level GLU::               Primitive interface to ``glu'' functionality.
  11 @end menu
  12
  13 @node GLU API
  14 @section GLU API
  15
  16 Import the GLU module to have access to these procedures:
  17
  18 @example
  19 (use-modules (figl glu))
  20 @end example
  21
  22 The GLU specification is available at
  23 @uref{http://www.opengl.org/registry/doc/glu1.3.pdf}.
  24
  25 @menu
  26 * Initialization::
  27 * Mipmapping::
  28 * Matrix Manipulation::
  29 * Polygon Tesselation::
  30 * Quadrics::
  31 * NURBS::
  32 * Errors::
  33 @end menu
  34
  35 @node Initialization
  36 @subsection Initialization
  37
  38 @node Mipmapping
  39 @subsection Mipmapping
  40
  41 @node Matrix Manipulation
  42 @subsection Matrix Manipulation
  43
  44 @defun glu-perspective fov-y aspect z-near z-far
  45 Set up a perspective projection matrix.
  46
  47 @var{fov-y} is the field of view angle, in degrees, in the Y
  48 direction.  @var{aspect} is the ratio of width to height.
  49 @var{z-near} and @var{z-far} are the distances from the viewer to the
  50 near and far clipping planes, respectively.
  51
  52 The resulting matrix is multiplied against the current matrix.
  53 @end defun
  54
  55 @node Polygon Tesselation
  56 @subsection Polygon Tesselation
  57
  58 @node Quadrics
  59 @subsection Quadrics
  60
  61 @node NURBS
  62 @subsection NURBS
  63
  64 @node Errors
  65 @subsection Errors
  66
  67 @node Low-Level GLU
  68 @section Low-Level GLU
  69 @include low-level-glu.texi
  70
  71