Ultraviolet - ZX Spectrum demo

Ғылым және технология

Ultraviolet - demo for ZX Spectrum 128k
All code, music and design by Gasman / Hooy-Program
First presented 18.03.2017 on Forever in ZX Spectrum demo compo (1st place).
Other links:
demozoo.org/productions/169583/
www.pouet.net/prod.php?which=...

Пікірлер: 113

  • @Tossphate
    @Tossphate6 жыл бұрын

    There are colours here im sure I've never seen on a spectrum!

  • @RetroGod1982

    @RetroGod1982

    5 жыл бұрын

    You can now use a 256 colour palette with the spectrum using ULAplus facebook.com/groups/ULAplus

  • @busy128x

    @busy128x

    4 жыл бұрын

    This is no ULA+, this is original ULA with interlacing the two buffers of the 128k Speccy.

  • @xanvision

    @xanvision

    4 жыл бұрын

    @@RetroGod1982 Why are you the ulaplus prophets so obssesed that don't even respect the work of others? Ulaplus is absurd and works very bad. It is an expensive and hard to install hardware which offers little difference, and it has no sense because once you update a spectrum with modern hardware, there a lot better options. It's plain stupid

  • @RetroGod1982

    @RetroGod1982

    4 жыл бұрын

    ​@@xanvision how is it disrespectful? The demo is cool and so are other developments within the community like ULAplus and interlacing. How does ULAplus work very badly? It extends the features of the original Spectrum ULA and enhances original hardware without breaking compatibility. Old and new software can use it. Existing software cannot use features found in other alternative ULA's like the Spectra interface and Spectrum Next. As it works with all Spectrum models and most clones then it obviously works very well indeed, and better than other alternatives. No its not expensive. Its £48 for a Zaxon SLAM+ board and is easy to install; or you can plug in a ZX-HD or MB03+ interface. The Next, Vega and ZX Uno also include ULAplus built-in. Its actually the most common standard for the Spectrum. SLAM+ also includes 2 additional video resolutions and 6 channel AY TurboSound. It offers a lot more than the original ULA and works within the original limitations of the Spectrum hardware so that compatibility is not affected. This is the point of ULAplus. It enables original Spectrum models to utilise an extended 256 colour palette and up to 64 simultaneous on-screen colours. It is not dependant on any particular video mode either and will work with various screen resolutions. Zaxon's SLAM+ also includes the additional Timex video modes so that even a 16K Spectrum can use 8x1 attributes at 256 x 192 or mono at 512 x 192 pixels. ULAplus also allows the user to run both resolutions in split screen mode. It makes a lot of sense but you just do not understand because you haven't even researched ULAplus. What modern hardware can be added to a Spectrum that offers better options? ZX-VGA? This will also offer ULAplus soon. It can also be combined with interlaced mode. ULAplus offers more than any other ULA replacement. You don't even need technical knowledge to add new palettes to old games. There is only the Spectrum Next that offers 256 colours in its own proprietary mode that cannot be used with existing software. Games need to be specifically written for that particular mode to take advantage of any of the features. You also need to run it on special hardware and the Next is not widely available so that mode is useless for existing Spectrum hardware and software. No other clone supports the Next video mode but many clones do support ULAplus. You really have no argument and have made no sense at all. You're misinformed about ULAplus and your reply is pointless since my comment was posted over a year ago.

  • @aldenleo6649

    @aldenleo6649

    2 жыл бұрын

    i know Im pretty off topic but does anyone know a good place to stream newly released tv shows online?

  • @scook2003
    @scook20035 жыл бұрын

    The speccy and zx81 effectively guided my whole life to where I am now.

  • @ianedmonds9191

    @ianedmonds9191

    3 жыл бұрын

    Me too.

  • @llary

    @llary

    2 жыл бұрын

    Me three

  • @StCreed
    @StCreed2 жыл бұрын

    Fantastic tune! Great work overcoming the limitations of the spectrum.

  • @TheOriginalChazno5
    @TheOriginalChazno59 ай бұрын

    Very impressive!! I'm an original speccy owner having had a 48K, 48K+ and then the 128K but have never seen anything this amazing to watch and listen to A+++++++++++++

  • @zuzanaholubcova516
    @zuzanaholubcova5166 жыл бұрын

    I wish someone was pulling this out of Speccy back in the old days *grins* Bloody Brilliant!

  • @stevejennings3960
    @stevejennings39606 жыл бұрын

    Bloody brilliantly done!!!

  • @dawserdoos
    @dawserdoos Жыл бұрын

    This is outstanding!!! It looks like so much effort was put into this!! The visuals were absolutely stunning (even if a bit dated lol). This woulda blown me away if I had one of those!!

  • @rstknives2423
    @rstknives24237 жыл бұрын

    Вэри бьютифул ворк. Найс джоб, гайз - сэнкъю фо кипинг сцене элайв!

  • @BigGfromSA
    @BigGfromSA7 жыл бұрын

    Well done. Great work. THKS

  • @grooeygroo
    @grooeygroo4 жыл бұрын

    This is gorgeous work, Gasman deserves a knighthood!

  • @BlueCardinal33
    @BlueCardinal336 жыл бұрын

    This is...beyond words. I would love to read the commented (hopefully) assembly for this.

  • @tubbiele2
    @tubbiele25 жыл бұрын

    Beautiful. Regarding the girl that watches herself in the water, it's expressionism for the Speccy! Bravo.

  • @azathoz
    @azathoz5 жыл бұрын

    Impressive. Awesome job! The speccy is still alive and healthy.

  • @kevin12567

    @kevin12567

    4 жыл бұрын

    There's even a new model that just released: ZX Spectrum Next! Unfortunately, you could only buy one during the Kickstarter, but they should be doing another one in March 2020.

  • @Wagoo
    @Wagoo6 жыл бұрын

    Mindblowing mode D:

  • @ChabyCZ
    @ChabyCZ5 жыл бұрын

    Excelent! Greetigns from IRCnet/#z80/T0my.! Keep going mate!

  • @video-tourist
    @video-tourist Жыл бұрын

    Awesome!

  • @monstergdc
    @monstergdc6 жыл бұрын

    damn, that's great!

  • @tricky778
    @tricky7782 жыл бұрын

    Oh yeah, I remember "supercolour" from one of the old spectrum mags, it wrote to the colour layer in sync with the graphics readout to get 8x1. Also it changed the border colour in sync.

  • @multiplexor9426
    @multiplexor94263 жыл бұрын

    из ZX Spectrum-a выжали все соки.

  • @jamesbaskerville9800
    @jamesbaskerville98002 жыл бұрын

    Nice work. Was thinking it was 128 before I saw the subheading. The speed of the patterns is incredible. The flavor is different from C64 demos and maybe the VIC and SID are an unfair advantage.

  • @apendix
    @apendix2 жыл бұрын

    Очень даже хорошо!

  • @varjagg
    @varjagg5 жыл бұрын

    Superb

  • @erkiyo666
    @erkiyo6667 жыл бұрын

    Fantástico

  • @gwenynorisu6883
    @gwenynorisu68835 жыл бұрын

    Yes... *YES* ... the colours, children, _THE COLOURS_ Those final pics are quite impressive, even if not as hypnotic as the rest of it. Though I do wonder whether the pictures might look better if they were all more line-drawn (like the first one) rather than photographic, and used an ordered dither instead of error diffusion? Some bits of the photos are just a noisy mess, but I bet the way that the mode works (essentially blending two regular 8x1 multicolour pics together) could work really well for more synthetic, pastel coloured images with more regular dither pattern. Is there a reason why they're only 176 pixels across though? Do the whole set of attributes need to be loaded in for the next line during the blank part, rather than just changing the memory location they're read from?

  • @Yukatoshi
    @Yukatoshi5 жыл бұрын

    Nice!

  • @user-mf8gg8dj4x
    @user-mf8gg8dj4x3 жыл бұрын

    просто поразительно

  • @ToxygenRecAll
    @ToxygenRecAll4 жыл бұрын

    Wow can’t believe it was possible on zx

  • @user-qw9dl8gj4v
    @user-qw9dl8gj4v6 жыл бұрын

    なんて美しいんだ!

  • @swinki33
    @swinki333 жыл бұрын

    First primo - great demo, stunning fx, jaw dropping (!) Second primo - bardzo very fajnie. but where is Jessica Ha... eee.... Yerzmyey?

  • @stevematthewman7245
    @stevematthewman72456 жыл бұрын

    That tune (3:51) is brilliant!! I've listened to it loads. Does it have a name? :-)

  • @kaureimannuel

    @kaureimannuel

    Жыл бұрын

    I think that is called arpeggio effect, but I'm not sure.

  • @pikgears
    @pikgears2 жыл бұрын

    finally some decent color on the spectrum

  • @slxb7743
    @slxb7743 Жыл бұрын

    Впечатляет!

  • @daniel1nagy
    @daniel1nagy6 жыл бұрын

    How did you do the mutlicolor picture at 4:17? There seem to be way too many colors even for changing the attrubutes every scanline. Does this demo run on an unmodified ZX Spectrum?

  • @daniel1nagy

    @daniel1nagy

    6 жыл бұрын

    Ah I see that you explained it: interlacing the two buffers of the 128k Speccy. Nice!

  • @romanpetrov492
    @romanpetrov4926 жыл бұрын

    будущее наконец-то наступило! теперь мы может видеть спектрум в естественных цветах! а куда же без этого в 2018 году?

  • @alonecoder600

    @alonecoder600

    2 жыл бұрын

    Так этот видеорежим в России применяется с 2004 года (Hexagonal Filler, MCX Viewer). Просто англичане его для себя только что открыли :)

  • @jamessergeant8413
    @jamessergeant84132 ай бұрын

    I would love a video walking through how each effect was generated and how the hardware limitations were resolved.

  • @busy128x

    @busy128x

    Ай бұрын

    You should write to Gasman the author of demo.

  • @viktorsemushkin7866
    @viktorsemushkin78665 жыл бұрын

    Круто! Не видел эту демку...

  • @MD_il_microcanale
    @MD_il_microcanale5 жыл бұрын

    WOW!!!!!!!!!!!!!!!!!!!!!!!

  • @BleughBleugh
    @BleughBleugh3 ай бұрын

    Wow! Runs on a bog standard speccy :-o Though I’m convinced the sound track is dual AY chip / stereo!

  • @mandarin178
    @mandarin17821 күн бұрын

    i still impressing by people who's on assembly language creating such masterpieces! You're all great people! What's dialect of assembly was used for ZX-spectrum demo? And how long it takes to code such program?

  • @0secundus
    @0secundus5 жыл бұрын

    That tune reminds so much of Utopia video game!

  • @nikolaysnegin
    @nikolaysnegin5 жыл бұрын

    Дэра со мэни каларс!

  • @perplexedmoth
    @perplexedmoth5 жыл бұрын

    I don't get how these full screen effects work. There is not even enough CPU time to fill the entire screen, is there? Are they always possible with some hardware trick?

  • @busy128x

    @busy128x

    5 жыл бұрын

    No, only software tricks are used. Demo works on standart ZX Spectrum 128 as is.

  • @cookiebinary
    @cookiebinary6 жыл бұрын

    wow

  • @ianedmonds9191
    @ianedmonds91913 жыл бұрын

    Someone educate me is this an assembly scanline hack or new hardware?

  • @zxspectrum16K69
    @zxspectrum16K695 ай бұрын

    Full screen colour scroller what about slapfight alcon2020? See cpc version for starters!

  • @RaposaCadela
    @RaposaCadela Жыл бұрын

    how it do

  • @CoolDudeClem
    @CoolDudeClem Жыл бұрын

    HOW were they able to make the spectrum produce extra colours? And with no attribute clash either?

  • @redpheonix1000

    @redpheonix1000

    2 ай бұрын

    They're probably changing the colors of each 8x8 attribute every scanline, effectively making them 8x1. Then, for the photos at the end, they're rapidly switching between the two screen memory buffers, essentially giving 4 colors per every "8x1" attribute instead of 2.

  • @redpheonix1000
    @redpheonix1000 Жыл бұрын

    This is something that I thought impossible even on a Timex Computer 2048 clone with it's improved ULA and it's special 8x1 attribute multicolor mode. HOW IN THE HELL IS A REGULAR SPECTRUM 128K PULLING THIS OFF?!

  • @zxspectrum16K69
    @zxspectrum16K695 ай бұрын

    You say that introspec and i inspired you but if you get hold of a ula+ spectra zx hdmi or vdac2 you really could do even more impressive feats of magic!

  • @zxspectrum16K69
    @zxspectrum16K695 ай бұрын

    Gasman where r u?

  • @Wadyface
    @Wadyface Жыл бұрын

    How!. . .

  • @cygil1
    @cygil110 ай бұрын

    The sound synthesis sounds like a SID. Is it a factory Spectrum?

  • @busy128x

    @busy128x

    10 ай бұрын

    Of course. The demo runs on original ZX Spectrum 128k / +2.

  • @edumartinez196
    @edumartinez1966 жыл бұрын

    Cunado ejecutas la demo en un emulador las fotos finales tienen un parpadeo que no aparece en el video y no se ven con tanta calidad ni resolución. En cualquier caso, el efecto conseguido en un hardware tan limitado no deja de ser espectacular.

  • @busy128x

    @busy128x

    6 жыл бұрын

    Tie obrazky vyuzivaju 25 Hz miesanie farieb, ktore funguje iba na poctivych 50 FPS zobrazovacich zariadeniach, idealne najlepsie na klasickom analogovom CRT televizore ktore maju dlhsi dosvit obrazovky. Na modernych pocitacoch s LCD monitormi ktore obvykle zobrazuju na 60 Hz je toto miesanie velmi nestabilne a nevyzera dobre. Je potrebne pouzit emulator ktory dokaze emulovat 50Hz zobrazovanie na CRT televizore.

  • @edumartinez196

    @edumartinez196

    6 жыл бұрын

    Ok, lo tendré en cuenta, ¡¡¡gracias y enhorabuena por el buen trabajo!!!.

  • @yeraysantanaaday6827
    @yeraysantanaaday68273 жыл бұрын

    And you made this with a zx spectrum, but how much memory??

  • @busy128x

    @busy128x

    3 жыл бұрын

    This demo is made by Gasman. It runs on standart ZX Spectrum 128kB (see description under video) so it surely does not use more than 128kB of memory :)

  • @urdnal
    @urdnal Жыл бұрын

    Toronto??

  • @phill80
    @phill805 жыл бұрын

    i'm glad my 8 year old self didn't own this game back in the day. My parents would of found me twitching/convulsing uncontrollably on the floor.

  • @mikeoxlong3504

    @mikeoxlong3504

    2 жыл бұрын

    pervert

  • @phill80

    @phill80

    2 жыл бұрын

    @@mikeoxlong3504 not sure how that makes me a pervert, but then again you’re entitled to your opinion, even if you’re a moron.

  • @automatedinsanity

    @automatedinsanity

    2 жыл бұрын

    @@mikeoxlong3504 you okay man, are you drunk

  • @user-mf8gg8dj4x
    @user-mf8gg8dj4x3 жыл бұрын

    я представляю eblo дядюшки Синклера если бы ему показали эту демку году так в 1983

  • @thespliffingbrit7766
    @thespliffingbrit77663 жыл бұрын

    What is this magic......

  • @anneschmitt8461
    @anneschmitt8461 Жыл бұрын

    how did you manage that stereo sound?

  • @busy128x

    @busy128x

    Жыл бұрын

    In 1988, I created stereo sound output on my ZX Spectrum 128+2. AY Channel A is connected to left, channel B is connected to right and C (as center) is connected to both - left and right. I published the schematic diagram in Interlace demo and short stereo-test later in LCD demo. But todays, most of emulators can setup stereo-output from AY too - you can set panning of AY channels in stereo output as you want.

  • @anneschmitt8461

    @anneschmitt8461

    Жыл бұрын

    @@busy128x You aere a genius! II am a freak for that beeping 49kb model... Great, thx!

  • @LoLzZ85
    @LoLzZ856 жыл бұрын

    I wish my +2 still worked

  • @Eblackadder1982

    @Eblackadder1982

    4 жыл бұрын

    fix it then, recap it - plenty of guides out there.

  • @mohnatyi_hleb
    @mohnatyi_hleb Жыл бұрын

    Малиновый звон. Десять из десяти

  • @efcoolefcool7082
    @efcoolefcool70824 жыл бұрын

    Sinclair the best !

  • @whelkboy
    @whelkboy7 жыл бұрын

    Would seem that you can change the laws of physics!

  • @gwenynorisu6883

    @gwenynorisu6883

    5 жыл бұрын

    Well, it's more taking advantage of how a lot of modern flatscreens deinterlace using a simple flat blend...

  • @user-nx4vi3lh9d
    @user-nx4vi3lh9d4 жыл бұрын

    Hi

  • @zxspectrum16K69
    @zxspectrum16K694 ай бұрын

    Mb-02+ help

  • @samcoupe4608
    @samcoupe46084 жыл бұрын

    Busy dunno y u name checked me I done nuffing!

  • @stanisawbrzoskwiniewski7898
    @stanisawbrzoskwiniewski78984 жыл бұрын

    Do you know what "Hooy" means in Polish?

  • @eneye666

    @eneye666

    4 жыл бұрын

    Zupełnie nic :) no chyba, że ma się dziwne myśli i braki w ortografii ;)

  • @swinki33

    @swinki33

    3 жыл бұрын

    It means "the great", like Alexander the Great :P

  • @TomekSamcik69
    @TomekSamcik692 жыл бұрын

    This is impossible !

  • @user-pq8yy4he9b
    @user-pq8yy4he9b3 жыл бұрын

    И это всë - хрибы.

  • @samcoupe4608
    @samcoupe46084 жыл бұрын

    No proportional font!

  • @samcoupe4608
    @samcoupe46084 жыл бұрын

    Ula+/spectra interlaced...

  • @busy128x

    @busy128x

    4 жыл бұрын

    No ULA+. This is original standart ZX Spectrum 128k.

  • @samcoupe4608

    @samcoupe4608

    4 жыл бұрын

    @@busy128x think the spectra website is kaput! Ula+ interlaced still possible...

  • @arx2395
    @arx23953 жыл бұрын

    Рше

  • @moguslov
    @moguslov6 жыл бұрын

    с музыкой совсем беда :( раньше демка так демка была , музыка в душу западала , а это что за набор звуков ?

  • @antonpopov808

    @antonpopov808

    Жыл бұрын

    У меня почему-то эта демка идёт без звука.

  • @user-bs5qq3wm5x
    @user-bs5qq3wm5x4 жыл бұрын

    вранье это, а не спектрум

  • @busy128x

    @busy128x

    4 жыл бұрын

    это не вранье, это спектрум ;)

  • @BellaLugoshi
    @BellaLugoshi Жыл бұрын

    враньё, у спека нет такой палитры

  • @Auberge79

    @Auberge79

    Жыл бұрын

    Мультиколор? Не, не слышал.. (О том и речь, что путём подмены атрибутов цвета прямо во время рисования экрана получены дополнительные цвета).

  • @BellaLugoshi

    @BellaLugoshi

    Жыл бұрын

    @@Auberge79 хм, вы точно уверены что хотите поговорить про мультиколор? в мультиколоре цвета из стандартной палитры, а замена атрибутов только позволяет обойти клэшинг. Возможно вы хотели сослаться на Gigascreen, но это мерцающий экран.

  • @endike
    @endike7 жыл бұрын

    wow

Келесі