glOrtho Interface to
OpenGL function glOrtho
usage: glOrtho( left, right, bottom, top, zNear, zFar )
C function: void glOrtho(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar)
Psychtoolbox/PsychOpenGL/MOGL/wrap/glOrtho.m