Thanks for your reply Jean-Claude,
(1)…
Everything I have managed to read seems to lead to using OpenGL and glfrustum().
I have previously posted on the opengl forum about a practical explanation of glfrustum as I’m finding it quite hard to get my head around the implementation.
I have the theoretical understanding of how it could be manipulated to create an asymmetric viewing frustum (required for off-axis projection). I have not managed to manipulate any sample code to effectively get the view to distort.
(2)…
Im not sure I understand what you are asking. I believe the anamorphic distortion is a result of off-axis projection. The image distortion is essential in providing the corrected view from the users real-time perspective.
thanks again 