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Thread: OVERDRIVE II

  1. #31
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    Quote Originally Posted by Ryoandr View Post
    Just tested on various console revisions.

    First, as a demo, it is brilliant. Congrats to all persons involved.
    Thanks!

    Quote Originally Posted by Ryoandr View Post
    onto hardware :
    MD1 VA4, warning message. I could tell the 2001-like sequence has some glitches
    MD1 VA6, no message, and the 2001 sequence is indeed glitchless
    MD2 VA0, no message, no glitch.

    Are there other parts affected by glitches ? I'm guessing the 30% MD1 are VA4 and before, and the 5% MD2 are Hitachi VDPs VA2/2.3 ?

    Soundwise, it's much better on stock hardware. The MD2 is unfiltered and it's a bit too agressive on highs, while on stock it has way better balance and really great bass.

    Also tried 60hz hotswitching, and, no . Slowdowns, glitches, and ultimately crashes on the FPS section.

    EDIT : dang, I'm literally blind, it also glitches at OVERDRIVE II title concentric circles, and on 3d balls
    In general you're partially right, pre-TMSS systems are more likely to display issues, although it's not related to the fact of having TMSS or the lack thereof. It seems that the VDP fabrication process or something similarly low-level is the cause underneath.
    Model IIs normally should work fine, although mine displays a few lines on the "We lost contact" scene.

    Model IIIs VA2s will not work due to different 128k VRAM address remapping.

  2. #32
    Raging in the Streets Sik's Avatar
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    Quote Originally Posted by Mad Moham View Post
    I got the rom running on my console, and it runs way more stable than the first Overdrive. This demo doesn't seem to want to run consistently unless I switch off the overclock, which I find strange. Given some of the effects I thought it would run better with overclocking.
    I would be surprised if either of them ran with overclock at all. They depend on some things having exact timings (i.e. happening at a very specific moment), and making the processor faster obviously completely screws up with that.

  3. #33
    Road Rasher Oerg866's Avatar
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    Youtube vid!


  4. #34
    Hedgehog-in-Training Hedgehog-in-TrainingNameless One Manveru's Avatar
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    Retroarch seems to be the unique PC emulator able to run the demo, although it glitches a lot in graphics and music.
    I can not test the rom in my Mega Drive because of the mapper...
    Anyway, congratulations, is an incredible job seeing the console showing all that stuff.
    Id like to learn the tricks used for some effects. Would be nice if some of you teach us some of your knowledge.
    I fell in love with Mega drive in 1991. Now programing for it...

  5. #35
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    You only need a cart that has 8megabyte capacity and SSF2 mapper support

  6. #36
    Outrunner Mad Moham's Avatar
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    Quote Originally Posted by Sik View Post
    I would be surprised if either of them ran with overclock at all.
    The original usually runs fine until it gets to the 512 color scene, then its shows the message: "your emulator sucks", other than that its seems to be ok. I'm running a very early model 1 (can't remember exact revision, sorry) and overclock to 10mhz.

  7. #37
    Raging in the Streets SEGA.GENESIS1989's Avatar
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    Quote Originally Posted by Tower of Power View Post
    Thank you, it looks awesome! Do these groups release their source code, just out of curiosity?
    I could be wrong but I don't think so. Since most of the people involved with the project frequent the SEGA-16 forums, one of them will hopefully be able to answer your question.
    "There's nothing to fear, except fear itself"
    http://i1054.photobucket.com/albums/s486/link2link2link/YUZOKOSHIROISAGODNEOSEEDEDITION.gif

  8. #38
    Road Rasher Oerg866's Avatar
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    If you can run the demo on real hardware somehow, we'd appreciate if you could help us with our research by posting the following details:

    Model number and revision (e.g. MD1 VA4)
    Serial number of the console
    Picture of the VDP / ASIC (if possible)
    Brief description of glitches experienced (if any)

    Thanks in advance!

  9. #39
    Raging in the Streets Sik's Avatar
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    Quote Originally Posted by Manveru View Post
    Retroarch seems to be the unique PC emulator able to run the demo,
    (・・!)
    Quote Originally Posted by Manveru View Post
    although it glitches a lot in graphics and music.
    ( ∩ ˙-˙ )=͟͟͞͞⊃ ’,;’; )'д')

    A lot of emulators seems to have the SSF2 mapper hardcoded and so will only enable it when playing SSF2, which is annoying. You can get past this by editing the header. But then there's the problem of emulators still missing a bunch of stuff (hence the glitches you mention), so until they fix that I'm not sure we should say they can "run" it (or better say, run it properly - there's no such thing as being or not being able to run, it's a sliding scale).

  10. #40
    Master of Shinobi Bottino's Avatar
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    First of all, this demo looks sick. Congratulations to everyone involved.

    Would it be possible to split the demo in two parts, like the Bad Apple one? That way those with an Everdrive would be able to test it on real hardware.

  11. #41
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    Not possible I'm afraid

  12. #42
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    I see some nice no shadow/highlight transparent stuff on 2:26, 3:49 and 5:32, it's animation trick or finally achieved the feat of programming the effect in real time??

  13. #43
    Extreme Procrastinator Master of Shinobi Flygon's Avatar
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    Quote Originally Posted by Bottino View Post
    First of all, this demo looks sick. Congratulations to everyone involved.

    Would it be possible to split the demo in two parts, like the Bad Apple one? That way those with an Everdrive would be able to test it on real hardware.
    Quote Originally Posted by Oerg866 View Post
    Not possible I'm afraid
    Looks like Bottino and I will have to update our cartridges.

  14. #44
    Gromble of pirates...? Outrunner Bramsworth's Avatar
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    Very good, some parts I was able to forget this was even a Genesis. Feels like some other piece of more advanced hardware!
    I'm Pro A'can

  15. #45
    Hedgehog-in-Training Hedgehog-in-TrainingNameless One Manveru's Avatar
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    Quote Originally Posted by Sik View Post
    A lot of emulators seems to have the SSF2 mapper hardcoded and so will only enable it when playing SSF2, which is annoying. You can get past this by editing the header. But then there's the problem of emulators still missing a bunch of stuff (hence the glitches you mention), so until they fix that I'm not sure we should say they can "run" it (or better say, run it properly - there's no such thing as being or not being able to run, it's a sliding scale).
    I understand, thanks Sik
    I fell in love with Mega drive in 1991. Now programing for it...

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