1MB Raytrace Demo running in real Atari 800xl

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  • čas přidán 11. 04. 2020
  • This is the 1mb Raytracing demo running on the genuine hardware:
    An Atari 800xl with Ultimate 1mb, Side2 with 16gig, UAV, and Stereo Pokeys.
    Enjoy!

Komentáře • 38

  • @dyscotopia
    @dyscotopia Před 2 lety +37

    As the scroller says, it's rendered on PC and they didn't have time to compress it. It's just been reduced to 4 colors to keep it just under a meg, an amount of memory that would have been far beyond imagination in the 80s.
    It's cool, but I expected more with all the wait time.

    • @Technoid_Mutant
      @Technoid_Mutant  Před 9 měsíci +3

      In 1986 or 87 I installed the Scott Peterson 320k and then the 576k 130xe upgrades. A half-meg of ram wasn't beyond my reach financially, and I did the work myself. I did these upgrades for others as well. In fact, I started my first tech job by visiting my future workplace to buy 41256 drams. That was in '92.

  • @ideationnation467
    @ideationnation467 Před 3 lety +32

    It's fucking amazing how this is happening on something soo old, it actually gives me the chills thinking about it

    • @HPPalmtopTube
      @HPPalmtopTube Před 2 lety +9

      it's just an animation pre-rendered on a PC that fits into the system's 1mb ram expansion, a modern add-on.

    • @DD-jk3nf
      @DD-jk3nf Před 2 lety

      Raytracing is also nothing new.

    • @SerBallister
      @SerBallister Před 2 lety

      @@DD-jk3nf Doing it in real-time is.

    • @nickolasgaspar9660
      @nickolasgaspar9660 Před rokem

      @@HPPalmtopTube a modern memory add-on that doesn't demand hardware modifications. The great thing about this 8bit architecture is that it can be easily expanded with external/internal, old /new add-ons while while remaining compatible with current software library.
      This is something that other popular machines of the era can't really do (i.e. C128).

    • @HPPalmtopTube
      @HPPalmtopTube Před rokem

      @@nickolasgaspar9660 Any system can be expanded with infinite memory provided it's paged/indexed in a custom way, and that the software supporting it can use it via this custom indexing system itself by mapping in/out of the pages to read/write data. And that will, off course, not interfere with old software running on the PC while the memory add-on is in place as it's simply ignored. So I don't see your point...
      I dunno much about these atari systems, it might have some functionality to do this easier, but it's possible on all computers...

  • @arcifric969
    @arcifric969 Před 4 měsíci +1

    OMG . . . its amazing . . . I remember that we had an old ATARI 800XL at home (long time ago), and I would never have dreamed that someone would still work with it today. . . I admire you

  • @sa3270
    @sa3270 Před 2 lety +7

    Amazing what you can do with a lot of memory and pre-rendered graphics.

  • @CrocTV42
    @CrocTV42 Před 3 lety +22

    my right ear loved that

    • @groenevinger3893
      @groenevinger3893 Před 2 lety +5

      Yes, Those stereo Pokey's really did there job! 🙄

    • @weust2672
      @weust2672 Před 2 lety +3

      @@groenevinger3893 Glad I'm not the only one noticing that. My right ear bleeds from the loading parts.

    • @deadsi
      @deadsi Před 2 lety

      I loved my right ear, m from Nantucket btw

  • @Atari8man2011
    @Atari8man2011 Před 4 lety +5

    Very nice Jeff

  • @afloyd4976
    @afloyd4976 Před 2 lety +6

    I remember Antic publishing a ray tracing program. It took forever to render a screen. This demo is just page flipping the screens.

    • @Technoid_Mutant
      @Technoid_Mutant  Před 2 lety +2

      There was a cad program for the Atari from Antic, "Solid States". It was written by a fellow who went on to write Degas, which did well, and some autocad-related code as well. atariage.com/forums/topic/303299-solid-states-3d-studio-precursor/

  • @SmakoszPilat
    @SmakoszPilat Před 2 lety +2

    👏🕪🔊Good job👍

  • @Clancydaenlightened
    @Clancydaenlightened Před rokem +1

    4:14 bunch of ppl rite now prolly shittin a few bricks

  • @alanmacmillan6957
    @alanmacmillan6957 Před 9 měsíci +1

    I like it. yeah its pre-calculated but then many 8-bit and 16-bit demos were , and ray tracing in real time is a never-a-gonna-happen really in those days .... 6502 at 1.79mhz in the Atari would pump out 0.75 mips if you were lucky. even the stock ST and Amiga were only around 1.x mips. we need some perspective in that the latest i7 would be 221,720 MIPS at 5.0 GHz - hundreds of thousands of times the processing power. even a modest mobile phone nowadays is thousands to tens of thousands of times faster than what we had back in the in early 1980's by a factor of several orders of magnitude. the custom hardware was really where the real magic happened - display list interrupts on the Atari 8-bit or Copper on the Amiga, etc.

  • @timmyt1232
    @timmyt1232 Před 2 lety +5

    This is a really nice program. Who made it?

  • @amyhund3786
    @amyhund3786 Před 6 měsíci +1

    Der echte Atari 800xl hat 64 KB und ist mit 1,79 MHz getaktet. Die vorgerenderte Demo läuft auf modifizierter moderner Hardware im Atari Gehäuse.

  • @r4dius
    @r4dius Před 2 lety +16

    Just playing an animation like playing a gif, not rendering anything

    • @Technoid_Mutant
      @Technoid_Mutant  Před 2 lety +2

      Fair estimation. Still, it is a whole buncha frames being flipped and a little computer doing it.

  • @cirouk
    @cirouk Před 4 lety +9

    Music sounds like zybx

  • @anneschmitt8461
    @anneschmitt8461 Před 2 lety

    I ve got that memory 320kb about- real on atari hardware. will that run?

    • @Technoid_Mutant
      @Technoid_Mutant  Před 2 lety

      This is one of the only demos you can't run. It needs a full meg of ram. It might be the only piece of software for the Atari 8 that actually requires a full meg of ram.

  • @bjbell52
    @bjbell52 Před 2 lety +5

    too much text - graphics don't start until around the 4 1/2 minute mark.

  • @adamKa27
    @adamKa27 Před 5 měsíci

    Its just simple animation runing from the expanded memory. No real raytracing there and visually nothing special. If you want some real 3D calculation, on the fly without precalc check out these Atari demos:
    czcams.com/video/mNqeUzvhRiw/video.html
    czcams.com/video/9WEp5Yv5Lso/video.html

  • @obvioustruth
    @obvioustruth Před 4 lety +8

    Why the music is only in right ear??? Terrible!

    • @Technoid_Mutant
      @Technoid_Mutant  Před 4 lety +12

      My fault. The Atari is only monaural, but I should have split the audio into both speakers for fuller sound. I'll see what I can do in future posts.

    • @obvioustruth
      @obvioustruth Před 4 lety +5

      @@Technoid_Mutant Thanks :)

    • @MMRYPRDX
      @MMRYPRDX Před 2 lety +1

      @@Technoid_Mutant What is the name of the song?

    • @nickolasgaspar9660
      @nickolasgaspar9660 Před rokem

      @@MMRYPRDX Mountain Bike racer.

  • @FatheredPuma81
    @FatheredPuma81 Před 2 lety +3

    Press "M", dislike the video, and thank me later.