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Vertical Insanity by Razor 1911 [web]
screenshot added by Vampy on 2001-11-14 19:01:36
platform :
type :
release date : august 1990
related :
  • 31
  • 3
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popularity : 62%
  • 0.91
alltime top: #3446
added on the 2001-11-14 18:30:06 by Vampy Vampy

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Extra points to the coder for discovering a non-existing opcode.. 8-)
rulez added on the 2002-04-30 16:41:40 by Korvkiosken Korvkiosken
I just try today this demo, first real vertical rasters :)

ARG lovely!!
The awesome -> Uncle tom mod "spell_amelioration" the finished version of "spell" from the sae Scoopex megademo (1989)

It is in fact spell + occ-san-geen (see sevensins-scoopex or Freddy Is Back-paradox!

I was surprise to recognise the melodie in this one :) Phun with the spell instruments!

Hehe Uncle tom, my "fav" musician with Marrillon
rulez rulez ...
rulez added on the 2003-11-30 21:22:56 by Buckethead Buckethead
StanZ: "real vertical rasters"... yeah, sure...
HAM6 + modulostretching... :)
Slemmy: so this means this could easily have been Kefrens bars f only they were good enough? ;)
rulez added on the 2004-09-09 14:29:54 by kb_ kb_
Well, the only issue here is to plot the pixels in a way that avoids HAM-artifacts. With quick enough calculations&plotting kefrens bars should work out. Haven't looked into *how* much rastertime it would require though.. :)
Lol ok, I thought it was possible because of your comment ;)
And if I believed this was mostly changing a color n time in a vbl to create n horizontal bars, I said myself, why finally the result is always horizontal, so ;P
If i remember, there were 16 real colors in ham6 mode, the trick was to use them for the borders pixels of the bars (to avoid ham "garbage" between them) and to use bitplanes 5 and 6 for the rest of the colors.

Btw, if i'm not mistaken what you call "kefrens" bars were in reality invented by metalwar/alcatraz (and not detron/kefrens) in the demo "we are first" (megademo 3).
rulez added on the 2004-09-09 15:10:55 by hitchhikr hitchhikr
hm.. at least they could have made them vertical
added on the 2004-09-09 15:32:32 by Stelthzje Stelthzje
diagonal, dammit!
added on the 2004-09-09 15:32:52 by Stelthzje Stelthzje
shaves ass :)
rulez added on the 2004-09-09 16:42:35 by prm prm
Vertical copper rainbow! Am-utterly-mazing! ;-)
rulez added on the 2004-09-09 17:04:05 by DJ Fistfuck DJ Fistfuck
rulez added on the 2005-06-03 04:28:04 by rio702 rio702
Uncle Tom's tune alone would make this a classic, but the code isn't that bad either. Dandelion, you might want to check out "Diagonal Insanity" by Amonia :)
rulez added on the 2005-06-03 15:37:49 by break break
Btw, the hidden part is accessed by holding down the right mouse button while decrunching the demo. Thanks to you-know-who-you-are for pointing this out :)
added on the 2005-06-03 17:36:24 by break break
Awesome copper-magic in 1990.
rulez added on the 2005-10-11 05:08:33 by ALiEN^bf ALiEN^bf
Yeah, pretty cool!
rulez added on the 2005-10-11 16:00:14 by StingRay StingRay
mad rasters!
rulez added on the 2005-10-11 18:26:06 by Dalton Dalton
rulez added on the 2005-10-11 18:39:17 by p01 p01

§§§ r4$T3rZ §§§

fabulous <3
rulez added on the 2005-10-11 18:43:36 by rez rez
rez-terz? :P
rulez added on the 2005-10-11 18:49:56 by elkmoose elkmoose
Hmm... how did they avoid HAM tearing when displaying a bar behind and to the right of another bar?
rulez added on the 2005-10-12 18:46:58 by xeron xeron
Working link:

added on the 2005-10-12 18:49:26 by xeron xeron
rulez added on the 2005-10-12 18:49:31 by NuKem NuKem
Oh wait... i've figured out how they avoided tearing... OK... back to coding again ;-)
added on the 2005-10-12 18:52:18 by xeron xeron
What was that command.. movef? Really nice one, one of the best tunes by Uncle Tom.
rulez added on the 2006-01-07 14:01:00 by Serpent Serpent
I like this demo. And I LOVE this tune!
rulez added on the 2006-12-08 11:26:45 by Archmage Archmage
well done!
rulez added on the 2007-03-06 17:56:58 by BITS BITS
Yep, they sure are vertical :)
rulez added on the 2009-09-08 19:00:58 by Maissi Maissi
rulez added on the 2012-04-28 16:57:45 by gentleman gentleman
Don't know nothing about Amiga tech, but well, they did it and it looks good!
And that music!!!
rulez added on the 2013-12-16 20:28:50 by baah baah
great tune, nice coding trick
rulez added on the 2013-12-16 20:42:51 by v3nom v3nom
Didn't know move.w -(a2),d1 was an undocumented opcode ;)

Thumb because it was fresh at the time!

I'm sure Doctor No simply meant that the rasters being "real" rasters is because horizontal ones can be RGB and these are RGB, whereas Alcatrazbars are not RGB.

So this is HAM with copper stretching, similar to the Halfbrite+copper stretch I did for the RGB tunnel in Uncle Tom Sonix. So there might be some nice tricks to pull with this left to do :)
rulez added on the 2014-09-20 18:15:50 by Photon Photon
rulez added on the 2015-09-29 15:58:42 by keito keito
move.w -(a2),d1?
added on the 2016-04-29 20:30:34 by moredhel moredhel
It's the "undocumented" opcode mentioned in the scroller. $3222 = move.w -(a2),d1.
added on the 2016-04-29 20:42:25 by StingRay StingRay
$3222 / 2 = ???
rulez added on the 2017-02-26 23:11:09 by Nosferatu Nosferatu
Cool music & nice colourful bars.
rulez added on the 2017-08-05 22:31:00 by dissident dissident
this rocks eternally
added on the 2020-04-16 04:24:04 by gentleman gentleman
This is hard rocking stuff for 1990, and still looks awesome. Smooth and perfect, great music also.
rulez added on the 2021-04-28 14:48:01 by bifat bifat
Music isn't my flavour but I've always been of the opinion that more colors = better screen.
rulez added on the 2021-04-29 00:53:21 by grip grip
some nice raster bars, but kinda boring one effect demo

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