Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!ames!pasteur!ucbvax!decwrl!jumbo!stolfi From: stolfi@jumbo.dec.com (Jorge Stolfi) Newsgroups: comp.graphics Subject: Re: 3d Rotation Algorithms Summary: Reference on projective geometry Message-ID: <13123@jumbo.dec.com> Date: 23 Jun 88 10:25:42 GMT References: <350001@hpcvlx.HP.COM> <2833@umd5.umd.edu> Reply-To: stolfi@src.dec.com (Jorge Stolfi) Followup-To: comp.graphics Organization: DEC Systems Research Center, Palo Alto Lines: 19 Brett S Bourbin asks: > > I want to write a program to show a perspective point-of-view > of some scene. Can anyone tell me the formulas ... Benjamin Ellsworth asks: > > I'm looking the ratio (or angle) at which things "shrink" as > they get farther away. Look for books on projective geometry and homogeneous coordinates. Try for example A. Penna and R. Patterson Projective geometry and its applications to computer graphics Prentice-Hall (1986) Jorge Stolfi stolfi@src.dec.com, ...!decwrl!stolfi