Subject: Re: [stella] A new colour display technology From: "Andrew Davie" <atari2600@xxxxxxxxxxxxx> Date: Tue, 24 Aug 2004 00:06:41 +1000 |
Proof is in the pudding. This looks like crap on Z26 on my system (even with the -! flag), but on the real thing... well it looks OK to me. I think it actually works. I have a very noisy connection, but all the colours do seem to be there and there's definitely no 'Interleaved Chronocolor(TM)' shimmer anymore. And I'm only displaying 2 of the 3 ICC frames. It looks very much like it's a true interlaced display. Original image included for comparison. I'd be interested to see what others think. Also included, an ICC version of the same image. Attachments: ICC.zip contains... ICC_PAL.bin -- an Interleaved CHronocolor(TM) version in PAL ICC_NTSC.bin -- ditto in NTSC SpastiColour.zip contains... SpastiColour01_PAL.bin -- an Interlaced SpastiColour(TM) version in PAL SpastiColour01_NTSC.bin -- ditto in NTSC The test is: what looks better on an ACTUAL TV; the ICC version or the SpastiColour version? Jury is out for me, as my actual tv experience must first go through a video recorder, recorded onto tape, then marched down to my real TV for testing. I get so much noise it's hard to see what's what. Caveats: I used source graphic frames from the ICC process. A utility could probably better create two RGB frames more suited to the actual technology. I figured what I had should work, though. Opinions on the results, please! Cheers A ----- Original Message ----- From: "Thomas Jentzsch" <tjentzsch@xxxxxx> To: <stella@xxxxxxxxxxxxxxxxxx> Sent: Monday, August 23, 2004 8:41 PM Subject: Re: [stella] A new colour display technology Andrew wrote: > I thought I'd post this idea to the list, in case someone wants to have a go > at implementing it. I don't have the time right now, but I do know it will > work. This is a new technique for displaying colour graphics. Cool idea! I really like your creativity! Actually I had tried using the interlace mode here myself too, but my approach was different and the results looked pretty ugly. I suppose your technology will work better. > But the overall effect of this two frame technique with interlacing is; > > * no flicker (other than interlacing, which we're all used to) I am not absolutely sure here. IIRC my experiments with interlace on the Atari 2600 looked quite flickering. But maybe I am wrong here. > * improved perceived resolution (we're doubling vertical resolution with the > interlacing anyway) Yes, but IMO you are also reducing the effective vertical resolution by combining 3 lines. > * a much nicer image overall. Maybe. :-) Have fun! Thomas _______________________________________________________ Thomas Jentzsch | *** Every bit is sacred ! *** tjentzsch at web dot de | ____________________________________________________ Aufnehmen, abschicken, nah sein - So einfach ist WEB.DE Video-Mail: http://freemail.web.de/?mc=021200 Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://stella.biglist.com --+---------------------------------------------------------------- You are subscribed as: atari2600@xxxxxxxxxxxxx To unsubscribe, send email to: stella-unsub-102616@xxxxxxxxxxxxxxxxxx Or go to: http://stella.biglist.com/unsub/stella/atari2600@xxxxxxxxxxxxx --+--
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SpastiColour.zip
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ICC.zip
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