orthogonal view

I''ve never tried it but I think you could call your "reshape" function, where you setup your viewport and projection method, and choose between persp or ortho according to the expected state.

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void SetProjection( bool bln_Perspective ) { if( bln_Perspective ) { // Set a perspective projection glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(...) // or glFrustum(...) glMatrixMode(GL_MODELVIEW); } else { // Set orthographic projection glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(...); glMatrixMode(GL_MODELVIEW); } }

There''s the simple way to do it. Just have a booloean var that determines which projection you''re going to use (this can be changed to true/false in your key handler or whatever).

Obviously you''ll have to play with the params for gluPerspective(...) and glOrtho(...) to get the look you want.

Hope that helped

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