NAME
gluOrtho2D
- define a 2D orthographic projection matrix
C SPECIFICATION
void gglluuOOrrtthhoo22DD(
GLdouble _l_e_f_t,
GLdouble _r_i_g_h_t,
GLdouble _b_o_t_t_o_m,
GLdouble _t_o_p )
delim $$
PARAMETERS
-
_l_e_f_t, _r_i_g_h_t
-
Specify the coordinates for the left and right vertical clipping planes.
-
_b_o_t_t_o_m, _t_o_p
-
Specify the coordinates for the bottom and top horizontal clipping planes.
DESCRIPTION
gglluuOOrrtthhoo22DD sets up a two-dimensional orthographic viewing region.
This is equivalent to calling ggllOOrrtthhoo with $ near ~=~ -1 $ and
$ far ~=~ 1 $.
SEE ALSO
ggllOOrrtthhoo((33GG)), gglluuPPeerrssppeeccttiivvee((33GG))