home *** CD-ROM | disk | FTP | other *** search
- Path: news.eunet.fi!fipnet!kone!jsaarinen
- Newsgroups: comp.sys.amiga.programmer
- X-NewsReader: IntuiNews 1.2b (31.7.94)
- References: <38232663@kone.fipnet.fi> <4h45p8$ilk@sunsystem5.informatik.tu-muenchen.de>
- From: "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi>
- Date: Sun, 3 Mar 96 16:23:11 UT
- Comments: Illegal date header - new date added by quicknews
- X-Original-Date: Sun, 03 Mar 96 17:09:39
- MIME-Version: 1.0
- Content-Type: text/plain; charset=iso-8859-1
- Content-Transfer-Encoding: binary
- Distribution: world
- Subject: Re: TMapping again!
- Message-ID: <38232793@kone.fipnet.fi>
-
-
- > |> I guess it is hard to do correctly without any holes between
- > |> polygons.
- >
- > But it's possible, my friend did it :) Had to play around a lot with
- > bresenham theory.
- > Well, writing non-horiz in mem should cause no slowdown ?
- > Don't know how much instructions he needed for that...
-
- The constant-z innerloop comes out quite slow, so I think
- subdivision used with quadratic or u/z, v/z and 1/z linear
- interpolation is the way for perspective mapping.
-
- Doing quadratic every pixel is out of the question because
- the lack of registers.
-
- -- _
- a Stellar programmer _ //
- "Amiga - back for the future" \X/
-