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- Path: nntp.teleport.com!sschaem
- From: sschaem@teleport.com (Stephan Schaem)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: CODER NEEDED !
- Date: 8 Jan 1996 13:44:54 GMT
- Organization: Teleport - Portland's Public Access (503) 220-1016
- Message-ID: <4cr74m$o0o@maureen.teleport.com>
- References: <w7lPPMD0aez4@p09.hotline.pfalz.de>
- NNTP-Posting-Host: julie.teleport.com
- X-Newsreader: TIN [version 1.2 PL2]
-
- Roi@hotline.pfalz.de (ROI@hotline.pfalz.de) wrote:
- : Hello !
-
- : I am desperatly looking for a programmer who is able to
- : develop fast routines for zooming/scaling and rotating
- : sprites !
- : The sprites are in 32 colours and the routine is needed
- : for a Space-Combat-Simulator such as WingCommander.
- : Any suggestions about the method or the maths of doing
- : such routines are welcome !
-
- Well a rotate can be done with incremental shears.(You can try this
- in dpaint)
- But I remember some 40K demo from way back then that did some
- very impressive zoom+rot, I alway wondered what was the algo
- begind this.
-
- If you need totaly 'random' scaling + rotation you should
- have the image in fast in 8bit format, then use a maping methode
- and save to a chip buffer to be blitted. Its not a fast methode.
-
- Stephan
-