daffy@physics.monash.edu.au (Davyd Norris) (08/14/90)
Hi out there, I think this question has been posted to this group before so flame me for my ignorance if you wish, but I am looking for refs. on 4D - 3D ( - 2D) transforms so that I can display shaded 4D objects on a screen (obviously). Answers to the following would be useful: a) Choice of viewing algorithm. Do I go for a straight plane view (ie. ignore a few axes) or a perspective (ignore the 4th axis) or is there a 'hyperperspective' viewing transformation that preserves the integrity of the image. I want as 'real' an image as possible, no artifacts. b) Do standard ray-shading techniques faithfully reproduce the correct result when extended to 4D vector math? c) Rotations etc. are not a problem. ( Since the last few posts that confirmed my thoughts. Thanks in anticipation, any help or personal viewpoints ( :-) ) would be welcomed. Please email me and I will post a summary or send resulting code/mail to any interested parties. Daf. daffy@physics.vaxc.cc.monash.edu.au -- ------------------------------------------------------------------------------- Davyd Norris : "Strange people physicists... In my opinion Physics Dept. : those that aren't already dead are in some Monash University, : way very, very sick." - Douglas Adams, Vic, Australia. : "The Long Dark Tea-time Of The Soul" -------------------------------------------------------------------------------