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Released At :
Xenium 2025
Achievements :
Mixed Demo Competition at Xenium 2025 : #2
Credits :
SIDs used in this release :
Scrolltext and other text in this release : ()
Download :
Look for downloads on external sites:
Pokefinder.org
User Comment
Submitted by chatGPZ on 17 November 2025
| Turns out there was a mistake in the reference data of the testbench. WTF. Hopefully tlr has time to look at it before xmas :) |
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Submitted by Jak T Rip on 17 October 2025
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Submitted by Peacemaker on 1 September 2025
If you fuck up the current version of Vice with a new VIC Routine, then you ve done something right. Congratz to this Coding Porn, Clarance! Well Done!
My Highlight of the Year by far so far :> |
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Submitted by Monte Carlos on 1 September 2025
| Only Bugs on real Machines are Bugs. Is it maybe emulation related? |
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Submitted by Pantaloon on 1 September 2025
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Submitted by mankeli on 1 September 2025
| Awesome demo. Not just the great routines, but somehow has a very nice atmosphere in it. Dunno why. Is it because of the music? :) |
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Submitted by G-Fellow on 31 August 2025
Vice 2.4 x64sc.exe with C64 Model Settings to 6569 = no bug. With C64 Model 8565 = makes the bug.
Awesome demo! Your routines are special and not easy. |
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Submitted by tlr on 31 August 2025
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Submitted by Clarence on 31 August 2025
It works on everything I tested on (new/old vic c64, c128 dcr, ultimate64), the half blank pixel bug appears in these emus:
Vice 2.4 x64sc.exe (x64.exe works though) and Vice 3.9 x64sc.exe (I haven't tried to tweak c64 models). |
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Submitted by tlr on 31 August 2025
Quote:and indeed, looks good on non-C64C vice :)
All a bit confusing, because Nine was the other way around, new-vic only.
Assuming it does actually run correctly on a C64C with 8565 (does it?), maybe it's some vic-ii detection that fails? |
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Submitted by Burglar on 29 August 2025
Quote:For vice emulator users: if you want to see the "7 sprites over 40 char wide border hires scroll" in it's full glory, we recommend using the hoxs64 emulator.
I asked chatgpz:
<groepaz_> burg: in vice use "c64" model (ie old vicii)
<groepaz_> more interesting is: does it show the artefacts on the real thing (with new vic)
and indeed, looks good on non-C64C vice :) |
User Comment
Submitted by Gordian on 28 August 2025
| It was pleasure to watch it live. Thank you:) |
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Submitted by Youth on 28 August 2025
| Wow I got such a warm feeling from this, new fx with an oldskool vibe. And on top of that, Drax, GRG and Syndrom tunies.. yummy! |
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Submitted by Strepto on 26 August 2025
| This is definitely an X file. Thank you! |
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Submitted by blala on 26 August 2025
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Submitted by ChristopherJam on 26 August 2025
Clarence: Oooh, resolution splitting explains why it's something we still only have patchy emulation coverage of. At the moment I only use realthing for test, and vice is my only emu, so even if I'd had the general idea I'd've struggled to progress with this one.
Cheers for the implementation notes - my 'howwwwww' was rhetorical, but the answer is appreciated nonetheless! |
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Submitted by Quiss on 26 August 2025
Clarence is a force to be reckoned with!
I've yet to wrap my head around how any of these effects is done. My favorite is the dotplotter, though. Record-breaking, I'm sure, but also: So pretty. |
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Submitted by Sir Garbagetruck on 25 August 2025
Cripes.
I was NOT expecting that.
fscking biggest smile over here, lemme tell ya. |
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Submitted by DKT on 25 August 2025
Great surprise from the whole Chorus team (with contribution of great musicians, and Poison, too :)
And remember, it's always only a trick... ;) |
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Submitted by Clarence on 25 August 2025
ChristopherJam:
Thanks. The extra sprites are drawn in by splitting resolution at the scroll sprite's left edges, the sprites are relatively placed so either the split only just visible for an expanded mc pixel, or that plus 1 or 2 cycles. It's a dynamic split architecture (4-5-6 cycles splits per line per sprite). Ofcourse the routine monitors where are the splits occuring, and punches in the graphics over the scroll accordingly.
I started to work on this idea for Raistlin's first "only sprite compo", but time wasn't enough then and it got stalled. I picked it up about 2 years ago, and started to refine it with a fresh mindset, and finished the core of it last year. It became the main fx for this whole demo. |
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Submitted by Clarence on 25 August 2025
| Wacek, Brush: I was following last year's Xenium, and you guys put on a hell of a good oldschool demo compo. Given the timing of the readyness of this demo, I could not imagine a better party to release at. No regrets at all. |
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Submitted by Mixer on 25 August 2025
| So good, a proper code demo! |
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Submitted by PAL on 25 August 2025
| Superb! Absolutely splendour! |
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Submitted by papapower on 25 August 2025
| Amazing demo, made my day |
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Submitted by Stone on 25 August 2025
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Submitted by Frantic on 25 August 2025
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Submitted by Slammer on 25 August 2025
| Super cool. Real nice surprise to wake up. Really like your work. |
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Submitted by Bitbreaker on 25 August 2025
| What a cool show! So many things that are improved and many limits pushed, i love that kind of technical demos! Noticed already some tricking on the 11 sprites on the upper border, it swiches down to 8 when the movements flips the sprites over :-) |
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Submitted by Zephyr on 25 August 2025
| Sweet oldschool vibe with some brilliant FXs - not to mention Drax wizadry. Congrats guys! |
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Submitted by ChristopherJam on 25 August 2025
Bloody fantastic.
Those sprites dropping over the lower border scroll. HOWWWWWW?
And yes, excellent music and graphics though out.
(also, cheers for the prompt youtube upload so I could check this out the moment burg messaged me—I was far from emus or hardware at the time (in bed, on my tablet :D )) |
User Comment
Submitted by wacek on 25 August 2025
iAN, thanks for remembering my little thingy with 10 sprites done without even using the ghostbyte at all ;)
I bow in respect to the Chorus crew for the bold decision of releasing such a technical demo at a multiplatform party somewhere in Poland, with only a handful of C64 demosceneres present there to fully appreciate the wizardry :) Funnily enough, just a few hours before that I was participating in a cross-platform panel discussion where I was explaining to our friends from PC and Amiga that there are still new tricks invented and discovered on the VIC. You have so elegantly proven that point few hours later, thank you ;) |
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Submitted by Brush on 25 August 2025
You did it again Clarence. Again a summer bomb like Rocketry and again i don’t have my laptop with me so i am forced to just use my brain to figure out how it is donr (and i fail at the task). And you released it in Poland? Just when i couldn’t attend Xenium? Damn :)
Congratulations! Excellent demo! |
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Submitted by JackAsser on 24 August 2025
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Submitted by 6R6 on 24 August 2025
| Cool stuff Clarence. Great vic trickery here. |
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Submitted by TheRyk on 24 August 2025
this one rules hard...
awesomeness, respect! |
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Submitted by Jay on 24 August 2025
| Hey CreamD, thank you for your kind words, I was overwhelmed reading the comments here. Fun fact: I actually came back doing SID in 30 years, and before entering a single note, I deeply studied some of your tracks as reference. Please keep amazing us—thanks again! |
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Submitted by Clarence on 24 August 2025
| CreaMD, I concur, it is truly mindblowing SID music, both technically and composition wise. I got shivers first time listening to it. |
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Submitted by Clarence on 24 August 2025
| Trident, thanks for noticing all those details you're awesome and right in the analysis. Btw, the challenging thing about the dycps is they are running at different speeds. Looks easy but seemed an eternal agony to finish. As Wvl said, the multicolor agsp has lost some vertical visibility due to added softscrolling, thus it's not AGSP Max anymore, but was based on the Rocketry routine for sure. I finished it as the fade-in effect last year about 2 months before seeing Halloweed 4, so it was a bit of a shock. |
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Submitted by Yogibear on 24 August 2025
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Submitted by Bob on 24 August 2025
THIS IS CODE PORN !!
very very wonder..full things
I don't even know how you managed to get 11 sprites but WOW!! love the show!
EZ IGEN! ;) |
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Submitted by Scrap on 24 August 2025
| wow… pure codep…. too many wtf moments for me… makes me feel dumb… 馃槈 |
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Submitted by Burglar on 24 August 2025
been pausing the sprite havoc part, trying to figure out how this madness could be possible, but I can't figure it out /o\
excellent gfx and soundtrack too. and I like the flow a lot, especially for an effect show like this. |
User Comment
Submitted by Dr.Science on 24 August 2025
| What an awesome demo, thanks dudes for this gem! Sprites mayhem for sure! |
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Submitted by CreaMD on 24 August 2025
| Hey Jay, I love your tune! Such a nice earworm. |
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Submitted by WVL on 24 August 2025
@trident : the bitmap mover in this demo can softscroll in Y, but has a smaller visible area (I think it's 192 pixels versus the 200 in Rocketry and Halloweed but I didn't measure it).
Also it can scroll > 40 chars in the X direction. The Halloweed one can't, but it features a bitmap that is 40 chars high versus the 25 chars high bitmap here.
The most amazing thing is that we get 3 routines that are amazing in just that single screen! |
User Comment
Submitted by trident on 24 August 2025
this is amazing! unexpanded border sprite scroll that covers the entire width + 7 additional sprites on top of the scroll? wtf!
there is so much wtf and coolness in here:
* the unexpanded sprite scroll that covers the entire width of the screen is really cool and very clever - the wonky font is somewhat similar to the font from Crest Avantgarde , but this time it doesn't stop at 40 chars in width but does go all the way into 48 columns! the massive ribbon sprite effect above it is incredibly cool - somewhat reminiscent of the effect in the amiga intro ribbons / crass from syntax 2024 (but this one is cooler). looks really cool.
* the plotter and the kefrens-like bars are obviously really cool
* but the real wtf magic (for me) is in the part with the sprite stuff. the part starts with one of those mega bitmap moves that has a way too small linecrunch area. it was first done (by clarence) in Rocketry (in singlecolor) and later improved upon by wvl in Halloweed 4 - Blow Your Mind (in multicolor). here it is done in multicolor too, but i'm unsure if there is any additional improvement over wvl's version. (not that it "has" to be any improvement - i'm just curious as to whether or not there is some new trickery here.)
but of course the sprite magic is the real deal here: it starts off with an unexpanded border scroll with a really good font. very nice touch that the ascenders and descenders of some of the letters have those nice single-pixel slopes.
then the real wtf starts, and just keeps going. the 7 sprites that spell out "x-file_" suddenly drops from the upper border and falls on top of the border scroll! how is this even possible? incredible. and then there is a second wtf moment when 11 sprites appear in the upper border. the previous record here would be 10, and those 10 haven't always been as colorful as these guys - plus they move around in the x direction too. and then the final wtf moment appears, when they out of nowhere starts to move on top of each other and switch direction! the mode change is impeccably executed. so much wtfness - love it!
* the 4 dycps with different colors on top of each other is a wtf moment too
* the final down-scroll that uses the same font and trick as the previous unexpanded sprite scroll is made extra nice by the use of different coloring on the words |
User Comment
Submitted by iAN CooG on 24 August 2025
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Submitted by 4gentE on 24 August 2025
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Submitted by Starfox on 24 August 2025
| Wow!Lot's of cool fx, gfx, and awesome music by Drax! This demo should be reported to SUFOI?馃槈 |
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Submitted by Raistlin on 24 August 2025
Very cool! Some really nice effects here - done in typical coder smokescreen style. Very nice.
Awesome music and gfx through it too.
We need more, though. More coolness like this. |
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Submitted by Skate on 24 August 2025
| Very confusing technical effects. Usual Clarence quality. Rest of the artwork, soundtrack fits Chorus standarts as well. A real coder porn. Btw, <random :)> bars effect became one of my favorites of the demo as well as impossible sprites on the borders. |
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Submitted by KAL_123 on 24 August 2025
| Nice demo with a good flow. Great effects and the music is enjoyable too. |
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Submitted by robo on 24 August 2025
Clarence/Chorus, you have no right to misuse my old VIC-II in such a shameless manner... :D
This is so nice, well done! |
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Submitted by G-Fellow on 24 August 2025
@Cruzer
Some kind of we had 10 sprites here -> Ten ;-)
And he predicted 11 sprites: Eleven |
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Submitted by Cruzer on 24 August 2025
| Umm, what? 11 sprites now? Have we even had 10? Blown away. |
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Submitted by Ramon B5 on 24 August 2025
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Submitted by Juanete on 24 August 2025
Incredible, what they program now, imagine this in the 80s, it blows your mind, excellent congratulations!
xD |
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Submitted by WVL on 23 August 2025
| Hmmmm... i really have to look into this one. Another great Chorus demo! Get a thumbs up from me :-D |
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Submitted by Katon on 23 August 2025
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Submitted by Hermit on 23 August 2025
PCs have been enhanced by hardware-designers throughout the years. On the other hand, C64s are enhanced by programmers: now C64s are able to display 11 'sprites' on a single row, thanks to Clarence. I've been waiting for this moment for many years.
Great innovative and unbelievable VIC-tricks and good tunes and graphics, as expected from a Chorus prod! |
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Submitted by Katon on 23 August 2025
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Submitted by Digger on 23 August 2025
| F… the flow. That pure VIC-II trickery is golden. And Clarence has again ordered that funky Drax soundtrack which brings about the old good times. Thanks guys, now I need to figure out how this s**t is done… |
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Submitted by Higgie on 23 August 2025
| Stunning code trickery, cool gfx and a good portion of fine music. But then there is no flow. It's a collection of excellent parts with no connection whatsoever. When I read Chorus on the screen and the credits part came up I had high hopes. Unfortunately, from an entertainment point of view, I won't watch this demo again. Though I might return to it after I have forgotten what it was. ... I deeply respect the craftsmanship put into it. But I tend not to like it as a whole. :'( Just my 2 cents. |
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Submitted by G-Fellow on 23 August 2025
| Good to see a new Chorus demo! I like all of it. |
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Submitted by HCL on 23 August 2025
| Omg this is soooo good!! Clarence you screw us all so hard!! No idea how you do most of those sprite-tricks, ..and that plotter.. Just gotta watch this one again. This is probably *the* demo experience of the year! Thank you sooo much!! |
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Submitted by Rambo on 23 August 2025
| Respect Chorus Forever Great Work! |
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Submitted by Jetboy on 23 August 2025
Awesome demo!
Those sprite effects are insane.
And that Robot by Leon! |
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