1991-2006 Silicon Graphics, Inc.
gluOrtho2D 3G
gluOrtho2D define a 2D orthographic projection matrix

## C Specification

void `gluOrtho2D` GLdouble left GLdouble right GLdouble bottom GLdouble top

## Parameters

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.

## Description

`gluOrtho2D` sets up a two-dimensional orthographic viewing region. This is equivalent to calling glOrtho with near = -1 and far = 1 .

## See Also

glOrtho, gluPerspective

## Copyright

Copyright 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/.