gluOrtho2D: man2/gluOrtho2D.xml
gluOrtho2D sets up a two-dimensional orthographic viewing region. This is equivalent to calling glOrtho with near = -1 and far = 1.
glOrtho, gluPerspective
See Implementation
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gluOrtho2D: man2/gluOrtho2D.xml
gluOrtho2D sets up a two-dimensional orthographic viewing region. This is equivalent to calling glOrtho with near = -1 and far = 1.