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Overflow's Backtro by Logon System

platform :

  Amstrad CPC
type :

  demo
release date : november 2001
related : remixed in: Parasites
25
5
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popularity :
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average rating 0.83
alltime top: #2545
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added on the 2001-11-04 by Overflow (cpc)  

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I have just seen it on my CPC. It's amazing! Both technically and effectswise!

The first part is some amazing fullscreen (overscan!) 50hz software tunnels and wormholes with 1byte width and 4lines height pixel blocks (And actually the lines are repeated 4 times with hardware way) and some cool optimized to the bone softcode all these making it possible to display big tunnel effects at fullscreen (All my CPC monitor is filled like hell to the borders ;)
The music? YM (A nice Atari tune I have first heared while downloading Leonard's Stsound) Overflow is the first to use converted digidrums in YM as he told me..

The 2nd part? Some cooler wormholes with normal resolution in Mode0, combining page flipping + color cycling at the same time but looks really cool! The wormholes rotate too (Due to pageflipping) and at the first time I couldn't think of colorcycling in the rotated ones! This parts plays also SID for the first time on CPC!

It's a long time to see a so innovative demo smashing the CPC! Overflow, the old coder of Shadow of the beast parallax scroller and S&Koh and other hardware demos, is back! And he brought us at once some really new and innovative stuff to the sleepy CPC scene! And it's only a small backtro ;)

A funny thing,.. I have more to write, cause I was obsessed with that demo! =)

It's the first time someone has thought and applied the idea to find a way to write big pixels and beeing able to update at 50hz, by copying 4 times the lines with hardware way! Perhaps we will start seeing C64like blocky demos in the future??? Lot's of innovations here!

Another final funny thing is that I have so many years to see such a technically extreme demo, so extreme that it fucks a lot with emuls! Even the loading fucks? (The second part is loaded while playing YM music!) Is to so technically advanced to rip emulators??? I suggest you Caprice32 or any oter emulator to run the second part,. Arnold could run the 1st? Hmm,.. anyways, I can enjoy it on my CPC, so it doesn't matter me ;)

Overflow,. the fact that I wrote so big review here in Pouet, means that I really liked it! It is something really new and technical advanced for the CPC scene (I will catch you through email :)
  added on the 2001-11-06 10:38:48 by Bugo the Cat  
1) A funny thing is that the blocky effects looks much pretier with the cool CPC color pallete, than on C64 demos with the shitty pallete. CPC could make pretier demos than C64 in the future if there was an active CPC scene..

2) I hope I didn't do any mistake with the technical shit here... I am just newbie and I am just guessing or mentioning what I have heard from others..
  added on the 2001-11-06 11:36:35 by Bugo the Cat  
Especially to Optimus, about your 2) :
you're right about all technics :) good job! you just forgot the SID logo, whose colors are real-time changed each frame, in order to cancel the color-cyling.

Thanks a lot about the good comments! :)
  added on the 2001-11-06 11:47:40 by Overflow (cpc)  
i LoooOOve you overFlow !!!!
  added on the 2001-11-10 23:48:37 by med  
You are a genius! I am still speechless...
  added on the 2001-11-11 16:29:08 by sice  
Absolutely enormous :)
  added on the 2001-11-12 04:18:20 by Buckethead  
WinAPE32 Version 2.0a run that pure stuff (1st & 2nd part)
  added on the 2001-11-12 04:35:01 by Buckethead  
very good technically but boring tunnels with colors moves in fact, not good design but great code
funny to see what a CPC can do in fact, if you say this was possible when i was on CPC scene i said you you are crazy ;]
  added on the 2001-12-10 14:18:25 by Zone (leZone)  
I saw it on WinAPE32, and damn it's great :) (a bit boring though)
  added on the 2001-12-10 16:24:17 by MooZ  
lol
To Zone or MooZ: I totally agree :) boring, no design...
For techies only(?) to show what a CPC could do.
On purpose: only 2 smashing effects to put shame on nowadays CPC lamers, by a so old and old-school guy! ;)
By the way: there's a far more simple demo coming, design-only demo, similar to the old Melon Dezign's demos from 1992...
  added on the 2001-12-20 14:21:45 by Overflow (cpc)  
I looOove you Overflow.
Your stuff's are the best...
Continues tes prods. J'adore :) Toutes elles roxx ;) ENORME.
Bonne année 2002 !!!

  added on the 2002-01-01 02:46:23 by Buckethead  
Amazing!!

Overflow the Great!
  added on the 2002-03-07 16:35:57 by _tal_  
Merci mr 'OVF' pour ce 'ROYAL' moment de pur bonheur :)
Tronic (GPA)


  added on the 2002-03-30 01:22:01 by zton  
I love to see that CPC scene is still alive!
  added on the 2002-04-15 20:38:29 by ham  
Yes ! A new school demo on CPC ! Or a kind of new school demo ! Thanks to an old school coder for this piece of art ! :-D
  added on the 2002-08-19 23:16:36 by ramlaid  
I just seen it on my CPC, what a good and great coding !!! I'm still surprised about CPC capacity ! Shall we have a new one early ?
  added on the 2003-01-22 22:32:57 by push  
http://cpcscene.dyndns.org/Ftp/Productions/Demos/Backtro.zip
  added on the 2003-05-26 12:46:11 by Bugo the Cat  
  added on the 2006-01-14 18:47:03 by p01  
Video found here : http://cpcrulez.free.fr/Scene_Videos/Backtro__DIVX511.avi
  added on the 2006-06-27 00:48:10 by hERMOL_CPC  
Worse direction ever!!!
I love it! :D
  added on the 2006-12-01 03:08:51 by xernobyl  
Great gear!
  added on the 2006-12-01 22:40:59 by ALiEN^bf  
tunnels, digidrums, sid... This one rules!
  added on the 2007-01-30 18:59:37 by ASiC  
wow!
  added on the 2007-04-15 02:25:16 by p01  
Overflow impressed everybody at the Croco Chanel 3 with his Backtro. Try the true version (called Parasites) with graphics of Beb...
  added on the 2007-05-19 09:33:49 by toms  
wow! this is almost like AtariF030 effect!! respect!
now CPC looks more powerfull than C64 :P almost like Atai 800XL :D
  added on the 2007-07-18 10:44:05 by calimero  
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