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Article #453

Re: Questions...

#453
From: sl8nl
Date: Thu, 06 Aug 1992 17:00
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> Smooth scrolling was very easy to do on the C64 because its redefinable
> multi-colour character set meant you can get fancy graphics while staying
> in text mode.  Each time you move a byte into video memory, you are
> essentially drawing a 4x8 tile of 4 colours.  To scroll the screen only
> required a block move of 1000 bytes, which can be done within one retrace.

It may have been a redefined character set (I couldn't image doing it at
the speeds it was going, though.)  It looks like to me that the screen was 
split.  Times of Lore looked more hires than a typical character set.

>>Hey, I can see going all 386 based.  That ought to give more than enough
>>power for applications today, and ideas of what we want for better machines.
>>But Ultima VII felt like more of an abuse to the 386 than an encouragement.
>>I'm not knocking U7.  It's a great game.  Can someone offer an explanation,
>>though?  (I want an explanation, not a flame on what I just said)
> 
> I've never played the game, nor have I even seen it running, but I have
> seen screen snapshots of it and I think I can see why it may be slow.
> I appears that U7's world is a multi-layered slab of voxels (volume
> elements).  To draw each screen would require the laying down of several
> layers of full-screen bitmaps, so I think it's the ISA bus that's the
> bottleneck here, not to mention that each NPC leads a pretty hectic life.  

That's probably a lot of it.  Richard did say that U7 is no longer tiled.
He never mentioned layered...but...

Josh
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Message-ID: <1992Aug6.110009.57912@cc.usu.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!caen!hellgate.utah.edu!cc.usu.edu!sl8nl
References: <1992Aug5.182236.57893@cc.usu.edu> <BsJss1.BM1@watserv1.uwaterloo.ca>

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Path: arc1-ca.pugleaf.net!sparky!uunet!caen!hellgate.utah.edu!cc.usu.edu!sl8nl
From: sl8nl@cc.usu.edu
Newsgroups: rec.games.programmer
Subject: Re: Questions...
Message-ID: <1992Aug6.110009.57912@cc.usu.edu>
Date: 6 Aug 92 11:00:09 MDT
References: <1992Aug5.182236.57893@cc.usu.edu> <BsJss1.BM1@watserv1.uwaterloo.ca>
Organization: Utah State University
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