Path: chuka.playstation.co.uk!news From: "Matt Verran" Newsgroups: scee.yaroze.freetalk.english Subject: Re: 2 techniques I need help with Date: Mon, 29 Nov 2004 10:39:19 -0000 Organization: PlayStation Net Yaroze (SCEE) Lines: 20 Message-ID: References: NNTP-Posting-Host: 217.18.16.10 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 > 1st the rotating tower effect in Nebulus, it would be easy in 3D but > that wasn't available on the spectrum, c64 or even Amiga It's just sprites, you have the bricks and platforms and enemies drawn at all the needed rotations. > 2nd the scrolling road that they used in poleposition which was flat, > outrun which went up and down as well With most of these scrolling road games they cut right down on the amount of things they were scaling. The road was usually just a moving patch of colour with lines drawn on it, in effect you're only drawing and filling a small number of polygons to approximate it. The outrun hardware had special sprite scaling hardware for the roadside detail and other cars etc. On lower hardware you could just store the sprites at a few different sizes and pop between them. -Matt