Re: Bitmaps

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#561

From: sl8nl
Date: Tue, 11 Aug 1992 01:40

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In article <1992Aug11.002459.18167@mnemosyne.cs.du.edu>, loine@nyx.cs.du.edu (lee oine) writes:
> 
> anyone know of a good routine to rotate a bitmap picture?
> 
> i know that bitmap shrinking and zooming can be done quite easily, but
> 
> cant figure how to rotate.
> 
> 
> take zooming for example, it can be done using only ADDition and the 
> 
> overflow bit. that is done in Wolf3D, i think, so as to make it very fast!
> 
> 
>                                                 << Iram Industry >>
> 

The perspective mapper routine can be easily modified to do this...

Josh

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Path: arc1-ca.pugleaf.net!sparky!uunet!caen!hellgate.utah.edu!cc.usu.edu!sl8nl

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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: Bitmaps
Message-ID: <1992Aug10.194049.58044@cc.usu.edu>
Date: 10 Aug 92 19:40:48 MDT
References: <1992Aug11.002459.18167@mnemosyne.cs.du.edu>
Organization: Utah State University
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