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- Path: informatik.tu-muenchen.de!fischerj
- From: fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Texturemapping speedup
- Date: 10 Jan 1996 03:27:28 GMT
- Organization: Technische Universitaet Muenchen, Germany
- Distribution: world
- Message-ID: <4cvbn0$dn6@sunsystem5.informatik.tu-muenchen.de>
- References: <john.hendrikx.40k4@grafix.xs4all.nl> <Rr3Px*AKe@yaps.rhein.de> <4bc7i9$5r7@maureen.teleport.com> <4be5k3$cli@brachio.zrz.TU-Berlin.DE> <4bf21s$egp@sunsystem5.informatik.tu-muenchen.de> <4cguv1$br2@brachio.zrz.TU-Berlin.DE>
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-
- Philipp Boerker (rawneiha@hydra.zrz.TU-Berlin.DE) wrote:
- : fischerj@informatik.tu-muenchen.de (Juergen "Rally" Fischer) writes:
-
-
- : >In article <4be5k3$cli@brachio.zrz.TU-Berlin.DE>, rawneiha@hercules.zrz.TU-Berlin.DE (Philipp Boerker) writes:
-
- : >|> Again: you will have to clear datacaches as well on 040+!
-
- : >why ? writeback thingy ?
-
- : Yes. Stephan pointed out that one can disable caching for the modification
- : and afterwards flush Inst Cache. Well, I never thought of that, still I won't
- : start using SM (sadomaso) code, because I want my code to run on future
- : cpus (emulations) as well.
-
- oh emulations are good! As for the emulating cpu, both 020 code & data will
- be data even the old A500 hacks will run ;)) you could even make the
- move sr,Dn instruction compatible again ;))
-
- PPC, the most compatible 680xx :D
-
- : >|> And: talking about optimizations I might add that my polygon mapping
- : >|> loop fits into the 256 bytes !
-
- : >including 1st outer ? 2nd outer ?
-
- : Input:
- : Pointer to list of objects,
- : pointer to chunkybuffer.
-
- : Output:
- : linearly mapped polygons.
-
- : Performance:
- : Estimated 15000 polygons per second on a 50 MHz 030, and some parts aren't
- well, depends on how big they are I bet ;)
-
- : optimized yet (C2P, rotation-projection)...
-
- well, chunky polygons imho only make sense if you mix it with gouraud or
- mapping. like frontier for exmaple.
-
- : Greets,
- : Phil.
- : ----------------------------
- : grond/matrix
- : rawneiha@sp.zrz.tu-berlin.de
- : ----------------------------
- ------------------------------------------------------------------------
- fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer) =:)
-