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- Xref: sparky comp.graphics:14134 comp.windows.x.pex:692 comp.graphics.opengl:271
- Path: sparky!uunet!olivea!sgigate!sgiblab!news.kpc.com!kpc!balsa!jbulf
- From: jbulf@balsa.Berkeley.EDU (Jeff Bulf)
- Newsgroups: comp.graphics,comp.windows.x.pex,comp.graphics.opengl
- Subject: Re: Row major or column major matrices?
- Message-ID: <1993Jan23.000930.26869@kpc.com>
- Date: 23 Jan 93 00:09:30 GMT
- References: <1993Jan22.124249.3817@eye.com>
- Sender: usenet@kpc.com
- Reply-To: jbulf@balsa.Berkeley.EDU (Jeff Bulf)
- Organization: Kubota Pacific Computers Inc.
- Lines: 19
-
- I have no strong preference for either, but it would make my life
- much esier if real-world systems could *choose one and stick with it*!
- I recently had days of unnecessary skullsweat grafting OpenGL
- evaluator onto a utility library that used the opposite ordering.
-
- On a related note...
- I learned most of my 3d graphics in left-handed coordinates. When
- z increases into the screen, the perspective transformation falls
- out trivially from an extra 1 in the viewing matrix.
- (F&VD comes to mind as an example). Yet PEX insists on right-handed
- coordinates, and PEX is the nearest thing to an existing standard in
- the industrial world. (Arguably brain-dead, but there's no use in
- getting into that.) Anyway, more nearly universal consistency would be appreciated here too.
-
- Flame off...
-
- --
- dr memory
- jbulf@kpc.com
-