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Atari Emulation of CRT Effects On LCDs

An anonymous reader writes "A group at Georgia Institute of Technology has developed a fun little open source program to emulate the CRT effects to make old Atari games look like they originally did when played on modern LCD's and digital displays. Things like color bleed, ghosting, noise, etc. are reproduced to give a more realistic appearance."

11 of 226 comments (clear)

  1. Great use of tag by RenHoek · · Score: 3, Insightful

    I think this is one of the most justified uses of the 'brokenbydesign' tag ;)

  2. Overdid it. by nausea_malvarma · · Score: 3, Insightful

    The effect is great in theory, but I think they over did it. Old arcade games are certainly a bit blurry, and have some ghosting issues, but this effect makes every little sprite into a pile of fuzzy crap. It's too bad to be true, and it ends up looking fake. Reminds me of those pre-faded jeans, with so much added wear that its easy to tell the wear and tear is not natural. Instead of looking like a pair of old jeans, they look like a pair of new jeans that someone split bleach on. Like these

    1. Re:Overdid it. by ElectricTurtle · · Score: 3, Insightful

      Wow, apparently people are missing the point. They obviously aren't trying to emulate 'new CRTs' what would be the point of that? Have you people forgotten what a 12" MCGA or EGA display from over two decades ago used to look like? I used to have one (MCGA) in working condition as recently as two years ago, and I can say the emulator is pretty close.

      Damn kids don't remember what shit used to look like before VGA, SVGA, XGA etc. came along and spoiled 'em. When I was growing up, I had one color! ONE! And it was the nastiest shade of amber ever conceived! At least I could play Airborne Ranger...

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  3. Why bother? by Anonymous Coward · · Score: 3, Insightful

    Honestly, craig's list is riddled with people throwing away CRT's. Why run a crappy emulation...if that is what you call it, when you can go next door and get CRT?

  4. Re:Unfortunately, CRT is still the best for gaming by MobileTatsu-NJG · · Score: 4, Insightful

    And does their program eliminate motion blur and the poor contrast of LCD to make it looks like a CRT?

    No but the 21st Century did.

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  5. No pedantry needed... by rbarreira · · Score: 3, Insightful

    ... since they were referring to realistic emulation... meaning closer to the reality of the system being emulated.

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  6. Re:But why!?!?!? by Sycraft-fu · · Score: 5, Insightful

    Because old systems counted on it. They were designed around working on low rez NTSC displays. You find that the color bleed and fringing and such helped smooth out the image and make it more natural. When you display it on a modern high resolution LCD it looks extremely blocky. So you emulate the problems with the older technology and you get a better looking picture for it.

  7. Comment removed by account_deleted · · Score: 4, Insightful

    Comment removed based on user account deletion

  8. Re:But why!?!?!? by fractoid · · Score: 5, Insightful

    It is beyond me why anybody would want to make something look like it did, instead of how it should look.

    But this IS how it "should look". It was designed for that display. People want it to look like it originally did for the same reason that people like muscle cars, vinyl records (complete with the hiss and wow and flutter that they try so hard to eliminate), valve amplifiers. It's because sometimes the inaccuracies in equipment change the signal for the better, and people like that.

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  9. Re:Unfortunately, CRT is still the best for gaming by Bigjeff5 · · Score: 3, Insightful

    Since the fastest runners in the world have reaction times in the 170-190ms range, and unofficially at least the fastest "clicks" are all above 100ms (I averaged 232ms myself, just below average), I'd doubt you could notice, let alone be affected by, a 10-50ms disparity.

    And I'm not sure how you can say 2ms response time leads to a 50ms disparity anyway, that doesn't make sense. Hell, there was a 70ms difference between my slowest and fastest clicks, and I couldn't notice the difference. The tech to get the response times so low does tend to jack colors and produce some odd artifacts, but none of those relate to how quickly it displays the data on the screen, not as far as I've ever heard anyway. Since the color/artifacting issues are relevant, and since 15ms vs 2ms is not noticeable, it's better to pick a 15ms LCD anyway.

    Plus, a frame will generally be displayed at least 10 times, if it is displaying at 15ms, before you can actually react to it. Again, the response time argument for not going LCD is tired and nearly worthless.

    The problem is probably just that you've been reading weird crap about LCDs, and haven't used them much yourself. Most likely to keep from justifying an upgrade.

    Actually, if you really want to prove me wrong (and find out for yourself if the LCD response time is really the issue), go to Humanbenchmark.com and compare your OWN clicks on a CRT with your OWN clicks on an LCD. I'm assuming you have access to one, of course, but it shouldn't be hard to get access to one anyway.

    I'm betting there is less than a 5ms difference in your 10 click averages.

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  10. Re:Unfortunately, CRT is still the best for gaming by RzUpAnmsCwrds · · Score: 4, Insightful

    Your 21st century seems a lot nicer than my 21st century. I haven't seen a flatpanel yet that in objective terms of quality comes anywhere near a CRT.

    CRTs have better black levels and better colors. On the other hand, they have fussy geometry adjustments (and you can never get them as perfect as an LCD), moiré patterns, and are generally much fuzzier than LCDs.

    My LCD provides a sharp, high-resolution image with low power consumption in a small package at a low price. All of those factors (sharpness, resolution, power cosumption, size, price) matter more to me than the areas where CRTs continue to lead (color reproduction, black level).