gluOrtho2D - define a 2D orthographic projection matrix
void gluOrtho2D( | GLfloat | left, |
GLfloat | right, | |
GLfloat | bottom, | |
GLfloat | top) ; |
left
, right
Specify the coordinates for the left and right vertical clipping planes.
bottom
, top
Specify the coordinates for the bottom and top horizontal clipping planes.
gluOrtho2D
sets up a two-dimensional orthographic viewing region.
This is equivalent to calling glOrthof
with near = -1 and far = 1.
Copyright c 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.