pouët.net

Ika I Compofylla (party ver.) by Newline
[nfo]
screenshot added by tin on 2024-07-07 15:52:31
platform :
type :
release date : july 2024
release party : Sommarhack 2024
compo : atari demo
ranked : 3rd
  • 47
  • 5
  • 0
popularity : 62%
 62%
  • 0.90
alltime top: #3539
added on the 2024-07-07 15:52:31 by tin tin

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Does not work on emulators, so please don't complain to me about that :) (but please DO complain about everything else, tho)
added on the 2024-07-07 15:53:15 by tin tin
Legitimately, a technical breakthrough for the ST. Everything about this should be impossible, and the "standard" approach to this kind of effect would be very very far off running in a single frame at one pixel granularity, even in a window a fraction of this size. This therefore is pure genius/witchcraft - thanks for much Newline for pushing hardware innovations, even in 2024.
rulez added on the 2024-07-07 16:59:31 by Tom Tom
OMG, and what Tom said.
rulez added on the 2024-07-07 17:04:22 by spkr spkr
Great STuff, Tin!
rulez added on the 2024-07-07 18:14:44 by grey grey
Great achievement!

btw.
I've been exploring visualizing 'bus activity' technique this year:
what a coincidence ;) https://dhs.nu/bbs-scene/index.php?request=20284
rulez added on the 2024-07-07 18:27:40 by Blast! Blast!
I don't ever comment on pouet

But I do now. This is absolutely awesome! Great work tIn - this is hardcore hardware exploitation!

*impressed*
rulez added on the 2024-07-07 18:32:08 by troed troed
WTF, awesome
rulez added on the 2024-07-07 19:15:05 by havoc havoc
As if writing fullscreen code was not complicated enough, now all instructions need to use 2 words ! Congrats for such technical demo and thanks for breaking Hatari (in fact Hatari can support a very simple bus display mode, but it's very slow and must be enabled at compile time and in all cases it would not support this demo).

Now that there's a real use case of the "bus noise", emulation can be improved to match the expected result.

Once again : huge stuff !

Note that demo crashes with 4MB ; not sure it's due to Hatari but to the technique used, maybe the demo should refuse to start if STF has mor than 2MB ?
rulez added on the 2024-07-07 22:33:19 by Mr. Styckx Mr. Styckx
I only partially understand what was done here, but respect due!
rulez added on the 2024-07-07 23:31:09 by CiH CiH
damn, nice
rulez added on the 2024-07-08 01:13:56 by Ramon B5 Ramon B5
I haven't even seen this yet, but the title compels me to thumb it up. Probably the best title I've seen this year.
added on the 2024-07-08 01:55:18 by Frost Frost
And of course I forgot the thumb...
rulez added on the 2024-07-08 01:56:35 by Frost Frost
Very curious to see this in action. Hope a video shows up soon!
added on the 2024-07-08 03:13:05 by Jobbo Jobbo
@Mr. Styckx: that crash is a long known (at least to us) Hatari bug, it ofc works on real HW with 4MB:) I'll be giving some more details as to why Hatari crashes in my writup.

Everyone asking for a video: just watch the archived compo stream for now - https://m.twitch.tv/videos/2190856301 (plus some snarky remark to just watch it on real HW etcetc)
added on the 2024-07-08 06:44:53 by tin tin
cool idea...

remembers me alot to the vc20 unconnected memory trick... if you set the screen to a memory location where no ram is installed...

the video chip displays all what is happening on the bus or better the last byte which was read...
really funny mode on vc20 since you can have some kind of packing of the screen data.
i descripe it here in more detail: https://www.pouet.net/topic.php?which=10628&page=1#c510790

anyway ... good job :)
rulez added on the 2024-07-08 07:54:51 by ultra ultra
it seems there is something very tricky here, please share some video ;)
rulez added on the 2024-07-08 08:52:57 by roudoudou roudoudou
Now that's one fancy rotator!
rulez added on the 2024-07-08 09:10:40 by britelite britelite
Impressive stuff tin! and thank you for making use of my old ika i rutan-skeleton dance cover that had been collecting dust since the mid 00s.
Because this tune finally saw some daylight, I tried to look up the real author.

Unlike the shows intro music, this piece lacks any mention or credits in the SVT archive. But since he composed the rest of the music for the show and have a track registered with STIM called "cirkusdans" that matches the length, I'd think its a fair guess that the original track was also composed by Lars Demian, but only Ika would know
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Until someone makes a youtube rip, here is a working video on twich.
added on the 2024-07-08 09:34:53 by Dubmood Dubmood
Great work guys, extra plus for the intro and the title :)
rulez added on the 2024-07-08 09:41:57 by Stalvik^bbz Stalvik^bbz
Thanks for the video, the rotation screen looks awesome!
rulez added on the 2024-07-08 11:59:18 by StingRay StingRay
I don't understand, but the rotation seems incredible! Well done!
rulez added on the 2024-07-08 12:55:09 by baah baah
Thanks. Looks great! Interested to read how it works.
rulez added on the 2024-07-08 12:56:45 by Jobbo Jobbo
great trick
rulez added on the 2024-07-08 18:44:19 by grz grz
i can't find the correct words for this
rulez added on the 2024-07-08 23:52:52 by seρρjο seρρjο
Wow. Very clever trick.
rulez added on the 2024-07-09 11:08:28 by MetalAges MetalAges
To me, this resonates like one of the most impressive technical achievement of all time on the Atari ST platform. Congrats tIn. I love the technical aspect of it and I love the execution. Pure awesomeness. The funny intro and the music fit in there very well too.
rulez added on the 2024-07-09 11:39:14 by RATI^OVR RATI^OVR
Mad new screen mode with neat presentation and music. What's not to adore here?

Could this have been entered in the zero bitplane compo?
rulez added on the 2024-07-09 12:57:55 by evilpaul evilpaul
hardcore technical stuff, I love it
rulez added on the 2024-07-09 15:18:20 by gwEm gwEm
just looked at youtube video, figured out it even runs in fullscreen, and STF.. I've no fucking idea how it works, and I love that! :) Congrats!
rulez added on the 2024-07-09 16:28:40 by leonard leonard
neat one
rulez added on the 2024-07-09 16:30:45 by wbcbz7 wbcbz7
Oo i wonder how it's done
congrats
it's neat
rulez added on the 2024-07-09 17:37:14 by gloky gloky
No idea how it's done. Impressive stuff!
rulez added on the 2024-07-09 17:48:34 by keops keops
Impressive trick, impressive result. Best compofiller ever.
rulez added on the 2024-07-09 17:56:43 by zerkman zerkman
Quite some mad trickery in this one! Very clever! Love it!
rulez added on the 2024-07-09 23:40:02 by Daniel Daniel
Utterly brilliant. Anyone downvoting this doesn't understand demos.
rulez added on the 2024-07-10 09:50:01 by prog99 prog99
Yet another frontier is broken. congrats!
rulez added on the 2024-07-10 10:26:25 by Soundy Soundy
Sourcery! Sauce erry! What is this dark magic!?

Lov the tech, mind blown, bricks shat. A real head scratch before - and after - I had the tech explained to me.
added on the 2024-07-11 21:11:59 by pep_sos pep_sos
Warning, boring write-up, fresh from the press: Anatomy of a Compofylla
added on the 2024-07-11 21:15:37 by tin tin
Pure magic
rulez added on the 2024-07-11 21:58:45 by Virgill Virgill
Thank you for the detailed write-up!

So cool that you're able to demo new (to the rest of us) tricks on the ST!

Also, I'd be curious to read how you managed to pull off the skew rotator on a plain old ST, especially with half the CPU limited to those moves.
added on the 2024-07-11 22:59:23 by Jobbo Jobbo
Just adding to the praise here, amazing new ST-tech almost 40 years into it's lifespan. Hats off to tIn.

evilpaul: No, this one's using bitplanes for display.
rulez added on the 2024-07-11 23:25:22 by evil evil
even better with the write-up, thanks a lot
rulez added on the 2024-07-13 12:12:42 by ericde45 ericde45
Wow, I saw a pixel perfect smooth rotozoomer, then I realized it was even more than just a soft rendered effect. I don't even understand the hard technique here, I need to read more carefully the minisite link.
rulez added on the 2024-07-14 15:47:11 by Optimus Optimus
OK. A bit repetitive.
added on the 2024-07-14 16:17:32 by AntDude AntDude
Impressive technical hardcore demo !
rulez added on the 2024-07-15 18:02:36 by Uko Uko
We (some at Amiga side of 68000) are getting white old hair (and pulling them out) because of this superior trick of a ultra smooth and big GFX rotozoomer.

Very inspiring!!

Maybe just a single effect miracle, but then again. Super cool!
rulez added on the 2024-07-16 00:01:57 by Greippi Greippi
As most non-Swedes I completely missed the reference to Ika i rutan at the beginning, but the 1-pixel rotozoom looks incredible on the ST.
Can't help but think a technical breakthrough like this would have deserved a slicker presentation and introduction though.
rulez added on the 2024-07-16 00:08:19 by exocet exocet
The boundaries keep being pushed on this platform. Very cool.
rulez added on the 2024-07-17 07:04:30 by krs krs
Crazy stuff! Thank you very, very much for the entertaining and
revealing write-up. Still cannot believe it and feels a bit like I am on
candid camera :-) I am wondering - and I hope my thoughts are not too
sacrilegious - if the rotator is also capable of handling a larger image
that is not composed of a repetitive subunit?
rulez added on the 2024-07-18 11:36:54 by ROG_VF ROG_VF
Arrr...
rulez added on the 2024-07-20 17:40:17 by SiR SiR
This is absolutely fucking great!!! and it finally solves for me a nagging feeling I was missing something.

A very very long time ago when I first managed to make a lower border overscan, I had yet to understand that I needed to change the screen address to have more RAM. I noticed that if ran more iterations of my code I could get rid of that "nasty changing pattern at the bottom of the screen" and get straight lines (NOPs). Eventually I figured out I needed to change the screen address, and I never went back to it.

But yes, this makes total sense, and should let one do all sorts of "impossible" cool things. Ok only in 2 planes, but still, that's a lot. I finally know how to do an effect that I've been thinking of for years on an Atari ST. It has been nagging at me for so very long, which suggests I had the intuition it was possible, but never figured it out.

MOST EXCELLENT WORK! You should have won hands down. This is a great technical step forwards!
rulez added on the 2024-07-21 05:29:35 by Alien / ST-CNX Alien / ST-CNX
Quote:
Pure magic

?

OK one.
added on the 2024-07-23 19:58:08 by sim sim
Quote:
tin: To everyone else: don’t be afraid of doing screens, I know I am not, any more


I have no clue about Atari ST magic, but nice write-up and conclusion!
rulez added on the 2024-07-24 08:15:47 by Asato Asato
.
rulez added on the 2024-07-31 20:33:54 by xeen xeen
Good stuff!
rulez added on the 2024-08-02 23:00:43 by ham ham
As a kid, I thought Ika was equal parts scary and boring. This is nice though. :)
rulez added on the 2024-08-18 00:52:08 by grip grip
rulez! nice to finally see the effect released :D
rulez added on the 2024-09-27 14:01:20 by insane insane

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