Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!caen!dali.cs.montana.edu!rpi!peck From: peck@ral.rpi.edu (Joseph Peck) Newsgroups: comp.sys.amiga.hardware Subject: Idea: New graphics modes (30hz/25hz like current 60/50) Message-ID: Date: 9 May 91 16:32:21 GMT Organization: Rensselaer Polytechnic Institute, Troy NY Lines: 30 Nntp-Posting-Host: ral.rpi.edu I found some time on my hands last week, so I got to thinking about new video modes for the Amiga. My thoughts ran along these lines: (Ignoring interlace for a moment...) An NTSC amiga has a vertical resolution of 200 lines. The agnus in the 3000 can switch to PAL mode, a change from 60hz to 50hz. This nets us an improvement to 256 lines. In terms of interlace, we have 400 vs 512 lines.... Why not take this reduction in frequency a step further, and offer a 30hz/25hz mode. This would provide a 400/512 non-interlaced signal and a 800/1024 interlaced signal. Now obviously this wouldn't work on my 1080, but (demonstrating my lack of video display knowledge) wouldn't this work on a multisync? Of all the suggestions made so far, this seems like the least costly to implement. (Then again, everyone with a new idea tends to think that... :) Does anyone have any idea why this wouldn't work, or is otherwise infeasible? The biggest downside is that all of the new games would run at 30/25 fps instead of 60/50 :) :) :) :) :) Oh yeah, and this would keep Scott Hood busy on a de-interlacer board with more memory. ;) Comments, attacks and flames welcome, Joe Peck peck@ral.rpi.edu