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Sega Mars Sample Program - Runlength Mode Test (1994)(Sega)

Discussion in 'General Sonic Discussion' started by Vangar, Oct 19, 2009.

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  1. Vangar

    Vangar

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    Here's something I haven't seen before, I didn't know if this has been discussed here or not but there's a 32x 'Mars Sample ROM' containing a 3D model of sonic:

    [​IMG]

    Does someone want me to upload this ROM, or is this already well-seen?

    Thanks,

    Evan

    EDIT: The ROM is tiny, so I uploaded it anyway. <a href="http://www.megaupload.com/?d=D58KFA1U" target="_blank">http://www.megaupload.com/?d=D58KFA1U</a>
     
  2. Kurosan

    Kurosan

    Samurai of Gaming Oldbie
    I think this might be documented already, unless I'm thinking of those early X-Treme models.
     
  3. Sik

    Sik

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    being an asshole =P
    I know of a MARS sample ROM but I don't recall about any 3D Sonic model o_O And not, that isn't the Xtreme model.

    *downloads ROM*

    EDIT: I checked the ROM, and indeed, it isn't the test ROM I was talking about (which was the Star Wars one). Screw it. Also holy crap if that's hi-poly for the 32x o_O Is it me or is it the Sonic the Fighters model?

    [​IMG]

    EDIT 2: um, doesn't seem to be the exact same model, although looks very similar... Maybe an earlier version?
     
  4. Andlabs

    Andlabs

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    Huh, oh wow. That's awesome. I could probably do that kind of thing too... if I weren't so goddamn lazy :V (I do have a 3D to 2D point algorithm with rotation and stuff like that for Plan 9 from Bell Labs and could port it to 32X.)

    What is this from? I haven't seen it in the SDK on Hacking CulT, unless I'm really missing something.

    Also this demo appears to be entirely Main SH-2 (68000 infinite loop of NOPs, sub SH-2 just a loop of moves). Slowpoke.

    Code (Text):
    1. ; slave SH-2 loop:
    2. mov.l (010, pc), r1
    3. mov.l (r1), r0
    4. mov.l (008, pc), r2
    5. mov.l (r2), r0
    6. ; branch back
    7. ; data
    I don't know, someone help :V
     
  5. Enzo Aquarius

    Enzo Aquarius

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    What's up with the polygons in the eye area? Is it just a basis for making Sonic's normal eye shape? It looks like the polygons protrude a bit.

    Also, something to note when comparing Mars' and Fighters' Sonic figures, the Fighters' Sonic has cylindrical socks and wrist glove portions along with a realistic looking hand structure. Mars uses a flared style for the socks/wrist and seems to have a spherical hand structure. Isn't the 32x supposed to go beyond what could've been done for Fighters? :psyduck:
     
  6. Techokami

    Techokami

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    Wow, that's pretty awesome. Would it be possible to locate and convert the data for the model into another format? (I.e. something plaintext like .X)
     
  7. Andlabs

    Andlabs

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    Writing my own MD/Genesis sound driver :D
    <!--quoteo(post=363713:date=Oct 19 2009, 03:42 PM:name=Techokami)--><div class='quotetop'>QUOTE (Techokami @ Oct 19 2009, 03:42 PM) <a href="index.php?act=findpost&pid=363713">[​IMG]</a></div><div class='quotemain'><!--quotec-->Wow, that's pretty awesome. Would it be possible to locate and convert the data for the model into another format? (I.e. something plaintext like .X)<!--QuoteEnd--></div><!--QuoteEEnd-->
    I'll load it into IDA and take a look... unless Vangar has the source =P
     
  8. Rika Chou

    Rika Chou

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    Where in the world did this come from? I don't remember ever seeing this before.
     
  9. Endri

    Endri

    Officer I don't have my drivers license with me. C Tech Member
    This is unexpected AND awesome.
     
  10. ICEknight

    ICEknight

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    I thought this was widely known... but I see I was quite wrong.
     
  11. Sappharad

    Sappharad

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    <!--quoteo(post=363703:date=Oct 19 2009, 02:00 PM:name=Enzo Aquarius)--><div class='quotetop'>QUOTE (Enzo Aquarius @ Oct 19 2009, 02:00 PM) <a href="index.php?act=findpost&pid=363703">[​IMG]</a></div><div class='quotemain'><!--quotec-->What's up with the polygons in the eye area? Is it just a basis for making Sonic's normal eye shape? It looks like the polygons protrude a bit.<!--QuoteEnd--></div><!--QuoteEEnd-->
    Perhaps it's related to same trick they used on the Saturn? It was discussed by Christina in one of the Xtreme threads.
     
  12. Kiroziki

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    Sorry I haven't posted on this forum for ages so here goes.
    Wow, I also thought this was known as well. But if anyone hasn't worked this out, this is the model that Chris Senn used to make the Sonic 32X or Sonic Mars concept levels of a rather slow running Sonic going around two different levels.
    I just found them on the Senntient website
    <a href="http://xtreme.projectsonic.com/demo/sxc_sonicdemo1.gif" target="_blank">http://xtreme.projectsonic.com/demo/sxc_sonicdemo1.gif</a>
    <a href="http://xtreme.projectsonic.com/demo/sxc_sonicdemo2.gif" target="_blank">http://xtreme.projectsonic.com/demo/sxc_sonicdemo2.gif</a>
     
  13. Endri

    Endri

    Officer I don't have my drivers license with me. C Tech Member
    <!--quoteo(post=363938:date=Oct 20 2009, 10:53 AM:name=Kiroziki)--><div class='quotetop'>QUOTE (Kiroziki @ Oct 20 2009, 10:53 AM) <a href="index.php?act=findpost&pid=363938">[​IMG]</a></div><div class='quotemain'><!--quotec-->Sorry I haven't posted on this forum for ages so here goes.
    Wow, I also thought this was known as well. But if anyone hasn't worked this out, this is the model that Chris Senn used to make the Sonic 32X or Sonic Mars concept levels of a rather slow running Sonic going around two different levels.
    I just found them on the Senntient website
    <a href="http://xtreme.projectsonic.com/demo/sxc_sonicdemo1.gif" target="_blank">http://xtreme.projectsonic.com/demo/sxc_sonicdemo1.gif</a>
    <a href="http://xtreme.projectsonic.com/demo/sxc_sonicdemo2.gif" target="_blank">http://xtreme.projectsonic.com/demo/sxc_sonicdemo2.gif</a><!--QuoteEnd--></div><!--QuoteEEnd-->*gasp*!
    *GASP*!
    !!O_O!!
    I... this... is what was missing in my 32X!
     
  14. Enzo Aquarius

    Enzo Aquarius

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    Canada, eh.
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    <!--quoteo(post=363938:date=Oct 20 2009, 12:53 PM:name=Kiroziki)--><div class='quotetop'>QUOTE (Kiroziki @ Oct 20 2009, 12:53 PM) <a href="index.php?act=findpost&pid=363938">[​IMG]</a></div><div class='quotemain'><!--quotec-->Sorry I haven't posted on this forum for ages so here goes.
    Wow, I also thought this was known as well. But if anyone hasn't worked this out, this is the model that Chris Senn used to make the Sonic 32X or Sonic Mars concept levels of a rather slow running Sonic going around two different levels.
    I just found them on the Senntient website
    <a href="http://xtreme.projectsonic.com/demo/sxc_sonicdemo1.gif" target="_blank">http://xtreme.projectsonic.com/demo/sxc_sonicdemo1.gif</a>
    <a href="http://xtreme.projectsonic.com/demo/sxc_sonicdemo2.gif" target="_blank">http://xtreme.projectsonic.com/demo/sxc_sonicdemo2.gif</a><!--QuoteEnd--></div><!--QuoteEEnd-->

    Holy shoot, those concept levels are amazing. Something I would totally expect (and want) out of a 3D Sonic game. :v:
     
  15. GagaMan

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    Those concept gifs, while kind of neat, just seem to remind me of Bubsy 3D. :E

    That model seems way too advanced for the 32X, it has even more polygons than the Sonic jam one, doesn't it? (Not taking the sprite based tricks used in the GIFs like adding 2D hands in at the end of both of them when they zoom right in).
     
  16. nineko

    nineko

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    Those gifs are awesome.
     
  17. Andlabs

    Andlabs

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    Sorry, Charlie, those are already known. <a href="http://www.youtube.com/watch?v=wHLqSAoE0bk" target="_blank">The YouTube link</a> at the end of the Sonic Mars wiki page links to video-ized versions of these GIFs.

    Disassembling has confirmed that this demo is entirely Main SH-2. I am still going through it to see how the model is stored. If we're lucky, it uses the GNUSAMPL library code from the 32X SDK.
     
  18. Rob Jinnai

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    All I can say is, that's an awesome way to use run-length mode that never occurred to me. Flat-shaded polygons, of course. :P
     
  19. Cooljerk

    Cooljerk

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    <!--quoteo(post=363703:date=Oct 19 2009, 11:00 AM:name=Enzo Aquarius)--><div class='quotetop'>QUOTE (Enzo Aquarius @ Oct 19 2009, 11:00 AM) <a href="index.php?act=findpost&pid=363703">[​IMG]</a></div><div class='quotemain'><!--quotec-->Isn't the 32x supposed to go beyond what could've been done for Fighters? :psyduck:<!--QuoteEnd--></div><!--QuoteEEnd-->

    Not by a longshot. Sonic the Fighters was a model 2 game. The model 2 spanks the Sega Saturn, which is more comparable in all actuallity to the model 1 (although they're completely different architectures). The Saturn spanks the 32X. So that should give you an example of how far behind the 32X was from Sonic the Fighters.
     
  20. Andlabs

    Andlabs

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    Writing my own MD/Genesis sound driver :D
    <!--quoteo(post=364041:date=Oct 20 2009, 03:23 PM:name=Cooljerk)--><div class='quotetop'>QUOTE (Cooljerk @ Oct 20 2009, 03:23 PM) <a href="index.php?act=findpost&pid=364041">[​IMG]</a></div><div class='quotemain'><!--quotec--><!--quoteo(post=363703:date=Oct 19 2009, 11:00 AM:name=Enzo Aquarius)--><div class='quotetop'>QUOTE (Enzo Aquarius @ Oct 19 2009, 11:00 AM) <a href="index.php?act=findpost&pid=363703">[​IMG]</a></div><div class='quotemain'><!--quotec-->Isn't the 32x supposed to go beyond what could've been done for Fighters? :psyduck:<!--QuoteEnd--></div><!--QuoteEEnd-->

    Not by a longshot. Sonic the Fighters was a model 2 game. The model 2 spanks the Sega Saturn, which is more comparable in all actuallity to the model 1 (although they're completely different architectures). The Saturn spanks the 32X. So that should give you an example of how far behind the 32X was from Sonic the Fighters.
    <!--QuoteEnd--></div><!--QuoteEEnd-->

    Then again, you could make a model hack of Virtua Fighter...
     
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