By Andy Ramm
Dr. Dobb's Journal September 1997
Example 1: (a) Left-eye view; (b) right-eye view. top = half of the vertical frustum dimension as measured at the frustum's intersection with the near clipping plane; aspect = the ratio between overall display width and overall display height (full-screen STR_RECT stereo), or the ratio between window width and window height (square pixel stereo); half_sep = half of the interaxial separation; clip_near = the distance from the viewpoint to the near clipping plane; distance = the distance from the viewpoint to the center of interest in the scene; clip_far = the distance from the viewpoint to the far clipping plane.
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