pouët.net

introspec information 749 glöps

• general:
• level: user
• personal:
• portals:
• demozoo: profile
• cdcs:
• cdc #1: paimen by Coma
• cdc #2: Unshaped by Masters Of Electric City
• cdc #3: Number One/Another One by Carillon & Cyberiad [web] & Fairlight [web]
• cdc #4: sjasmplus

• 256b ZX Spectrum BB by Introspec
• @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.
• isokadded on the 2014-04-30 18:13:14
• 256b ZX Spectrum ColoDrum by Hacker VBI
• One minute!!! 8)
• rulezadded on the 2014-04-28 12:31:18
• demo ZX Spectrum Lamia
• It is fascinating to watch more and more details appearing as drawing progresses. I am not really convinced if the music matches the tone properly, but this is secondary.
• rulezadded on the 2014-04-28 07:25:38
• 512b Atari ST Random Cell by Positivity [web] & Arm's Tech [web]
• Imitation is definitely a form of feedback, right? :)
• rulezadded on the 2014-04-27 22:36:18
• demo Windows numb res by Carillon & Cyberiad [web] & Fairlight [web]
• I have no words to describe how much I dig this. This is the demo to strive for. The .diz talks about the technical issues involved, but this demo is quite a lot more than the technical backbone for me. This is a demo about loneliness and disconnectedness in the world, and overcoming it in a flood of a cathartic experience.
• rulezadded on the 2014-04-27 14:32:29
• 256b Atari XL/XE Rasta by g0blinish
• Sorry, I cannot properly appreciate the technicalities involved here, but it looks very neat.
• rulezadded on the 2014-04-27 03:20:42
• 256b ZX Spectrum dreamtro by Debris
• My dreams are never this colourful :)
• rulezadded on the 2014-04-27 00:52:30
• demo invitation ZX Spectrum dinvtro by Mr. Scrololo
• The scroller is nicely done, the car animation is cute and the music is cool. However, in my opinion, the invitation is not a place to poke other sceners. So the message is dubious and the overall impression is spoiled.
• isokadded on the 2014-04-27 00:37:10
• demo Wild RoboCop demo by kabardcomp & Team Site
• I actually liked this quite a lot, especially the sound track. In the past I found most Tritone tunes to sound better on a beeper, but in this case the whatever PSG chip sounds brighter and more purposefully somehow.
• rulezadded on the 2014-04-27 00:30:32
• 256b ZX Spectrum Crypto by Debris
• The choice of colours is too arbitrary for my liking, but the sound is FANTASTIC. It reminds me of the Geiger counter! :)
• rulezadded on the 2014-04-27 00:24:09