home *** CD-ROM | disk | FTP | other *** search
- Path: nntp.teleport.com!sschaem
- From: sschaem@teleport.com (Stephan Schaem)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Wolfenstein Texture mapping problem
- Date: 23 Feb 1996 23:03:47 GMT
- Organization: Teleport - Portland's Public Access (503) 220-1016
- Message-ID: <4glh4j$rgg@maureen.teleport.com>
- References: <4g5mv0$sns@news01.uni-trier.de> <4gimj3$4lp@news01.uni-trier.de>
- NNTP-Posting-Host: julie.teleport.com
- X-Newsreader: TIN [version 1.2 PL2]
-
- Hans-Joerg Frieden (hfrieden@fix.uni-trier.de) wrote:
- : I finally implemented my texture-mapping loop with a large ~200K lookup
- : table. Although there was a speedup (my innermost loop is now 3
- : instructions long), still the thing is too slow... I get around 5
- : frames/second on a Picasso board (the mapper alone gets 9 frames). I
- : think I must now investigate other methods for building the Z-Buffer...
-
- Why the table, and the z buffer? what are those 3 instructions?
- How is the picaso update done? you write the the buffer directly?
- you use an OS function? How long does it take the OS to update
- a the fatsmem buffer? I'm asking cause this might be a major cause
- for your slowdown.
-
- Stephan
-