gluOrtho2D(3G) OpenGL Reference gluOrtho2D(3G)
gluOrtho2D - define a 2D orthographic projection matrix
void gluOrtho2D( GLdouble left,
GLdouble right,
GLdouble bottom,
GLdouble 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 glOrtho with near = -1 and far = 1.
glOrtho, gluPerspective
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