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- Xref: sparky comp.graphics:14205 comp.windows.x.pex:701 comp.graphics.opengl:278
- Newsgroups: comp.graphics,comp.windows.x.pex,comp.graphics.opengl
- Path: sparky!uunet!munnari.oz.au!uniwa!swanee.ee.uwa.oz.au!zeus!phillips
- From: phillips@swanee.ee.uwa.edu.au (Christopher James Phillips)
- Subject: Re: Row major or column major matrices?
- Message-ID: <phillips.728015799@swanee>
- Sender: news@swanee.ee.uwa.oz.au
- Organization: Elec Eng, Univ of Western Australia
- References: <1993Jan22.124249.3817@eye.com> <1993Jan23.000930.26869@kpc.com>
- Date: 26 Jan 93 02:36:39 GMT
- Lines: 16
-
- In <1993Jan23.000930.26869@kpc.com> jbulf@balsa.Berkeley.EDU (Jeff Bulf) writes:
-
- >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.
-
- Well I learned most of my _2d_ graphics with x increasing to the right, and
- y increasing down, so z increasing into the screen gives me a RHS
- immediately :)
-
- Christopher Jam.
-