BB by introspec
screenshot added by introspec on 2014-04-26 14:55:18
platform :
type :
release date : april 2014
release party : Multimatograf 2014
compo : combined 256b
ranked : 1st
  • rulez 26
  • is ok 4
  • sucks 1
popularity : 0%
  • rulez 0.81
alltime top: #6459
added on the 2014-04-26 14:55:18 by introspec introspec

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Achtung! Politic demo!
rulez added on the 2014-04-26 15:51:31 by Kakos_nonos Kakos_nonos
even with sound!
rulez added on the 2014-04-26 16:45:05 by diver diver
rulez added on the 2014-04-26 16:56:49 by g0blinish g0blinish
img selection is strange, otherwise ok.
added on the 2014-04-26 18:40:22 by lvd lvd
rulez added on the 2014-04-26 18:58:11 by VBI VBI
Big brother is watching you!
rulez added on the 2014-04-26 21:15:47 by moroz1999 moroz1999
С нами Путин и Христос!
rulez added on the 2014-04-26 21:23:16 by unbeliever^x7m unbeliever^x7m
нахуй краба
sucks added on the 2014-04-26 21:24:19 by BiTL BiTL
rulez added on the 2014-04-27 09:41:43 by Factor6 Factor6
Great for 256 bytes. Good work!
rulez added on the 2014-04-27 19:16:44 by alffcpu alffcpu
Haha good. It's sometimes like Sotsoft's idea who wanted me to code noise effect where human face would appear, but he believed paranormal stuff, like the quantum field of the noise effect, and we didn't do it. The face here appears and dissapears through the chaos, Sotsoft would approve!
rulez added on the 2014-04-27 19:22:47 by Optimus Optimus
rulez added on the 2014-04-27 21:05:29 by p01 p01
rulez added on the 2014-04-27 22:23:58 by baah baah
rulez added on the 2014-04-27 22:34:33 by StingRay StingRay
rulez added on the 2014-04-28 00:12:53 by YERZMYEY/H-PRG YERZMYEY/H-PRG
It's brilliant!
rulez added on the 2014-04-28 11:59:14 by nyuk nyuk
Yashka Giddaskaya!
rulez added on the 2014-04-29 12:54:54 by cruzer cruzer
He is really watching! Just 256 bytes and he will invade your ZX Spectrum. Terrifying!
rulez added on the 2014-04-30 03:33:17 by Eye Eye
wow, well done, introspec! mind explaining how you've done it?
rulez added on the 2014-04-30 10:08:58 by randomi randomi
@randomi, the idea is nearly identical to what ilmenit does in Mona. The image is generated in a loop with 64 iterations. Let N be the iteration number (N=64, 63, ..., 1). During each iteration I plot on the screen 4*N 2x2 pixel "points" with random coordinates X and Y. The plotting is done using XOR operation, so that mistakes can be potentially corrected. To add a touch of sophistication to the image I also plot 256 totally random _pixels_ after each iteration. My PRNG is a 24 bit Galoius LFSR with a bit mixer hacked at the end. The lower 16 bits of PRNG are seeded during each iteration (this is our "data"); the higher 8 bits are carried over from the previous iteration. The starting value of the higher 8 bits is an additional data value. Since the last few iterations do not plot many points, they are not seeded properly. Overall, the image is stored as 62*2+1=125 bytes of data. The lossy compression ratio here is lower compared to ilmenit's case (128*96/8 : 125 ~ 12.3x).

The specific choice of seeds, just like in the ilmenit's case, is obtained by an iterative brute-force search on a PC. I went through several configurations of the plotting algorithm to improve the overall image quality. Once I settled on a particular configuration, I went through some 5*256*64*65536 seed values (number 5 reflects the fact that my PRNG allowed 5 distinct feedback polynoms for the maximum period). The best looking image was then chosen manually. The overall computation took about one and a half days on 7 cores. I am confident that both the image quality and the speed of computation could have been further improved, but I ran out of time.

The menacing appearing and disappearing into the static is achieved by running an identical plotting loop with an incorrect seed value twice; during the first run the image gets completely corrupted by the noise, during the second the noise completly cancels itself out.
added on the 2014-04-30 18:13:14 by introspec introspec
He's watchin' you.
rulez added on the 2014-05-01 11:10:52 by brightentayle brightentayle
in your face
rulez added on the 2014-05-03 20:40:35 by sensenstahl sensenstahl
added on the 2014-05-09 11:52:13 by marsel84 marsel84
rulez added on the 2014-05-09 11:53:31 by marsel84 marsel84
Do not get it... There are PLENTY of ppl around the world and you, choose that one... PLENTY I say...
added on the 2014-05-17 10:40:02 by sim sim
sim, I understand what you are saying. It is not particularly pleasant to be a Russian citizen these days. I find it impossible to ignore what is going on in Ukraine at the moment. I wanted to send this to a party in Russia, which is a part of a fairly large animation fest, i.e. far from demoscene-only. Thus, it could not have been any kind of explicit political statement. So I went for something ambivalent, menacing and, hopefully, reminiscent of the 1984 Apple advert. I do not think it was fully successful, in that I could not match the colour scheme of the Apple advert for technical reasons and also because you are not the only person to ask me this question. Just be assured - this was not a decision taken lightly.
added on the 2014-05-18 10:59:23 by introspec introspec
My compliments introspec.
rulez added on the 2014-05-25 01:55:22 by Baudsurfer Baudsurfer
rulez added on the 2014-05-25 12:18:38 by noby noby
rulez added on the 2014-05-28 01:02:30 by rudi rudi
rulez added on the 2015-08-04 08:40:31 by n1k-o n1k-o
Is this a russian Mona?

Strange, scary but cool!
rulez added on the 2015-08-04 09:19:53 by nodeus nodeus
brilliant execution!
rulez added on the 2015-11-26 09:16:02 by trixter trixter

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