pouët.net

introspec information 746 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

• demo Wild osaka
• Wow, this is properly mad :)
• rulezadded on the 2014-06-02 21:39:48
• invitation ZX Enhanced 3BM 2014 invitro by Hacker VBI & Buyan
• Since I somehow got mentions in credits, just a piggie (it is way too oldschool for me to thumb this up anyway :) ). So I'd like to use this opportunity to say a few words about the hardware.
  
  In 2009 a new FPGA-based ZX Spectrum clone was created by NedoPC. Their primary goal was to re-create an improved and upgraded version of the 1990s soviet ZX Spectrum clone ATM2. However, an alternative configuration was recently created, with very little regard for hardware solutions from the 1990s and many features not available on the original ZX Spectrum hardware: 14MHz CPU clock, up to 4Mb of memory, flexible memory paging (graphics screens included), 16 and 256 colour modes, extended palettes support, 85 sprites, 2 layers of tiles, DMA, reconfigurable frame and scanline interrupts etc etc. So, although it is a ZX Spectrum compatible computer, a more reasonable comparison for this computer could be the v6z80p, which was used for Loopback by Altair.
• isokadded on the 2014-06-02 21:29:57
• demo Windows Srdce by Satori [web]
• Absolutely loved the music and the presentation is great. A small computer demo with a bit of human touch.
• rulezadded on the 2014-06-01 14:49:40
• 256b ZX Spectrum BB by Introspec
• 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.
• isokadded on the 2014-05-18 10:59:23
• demo Amiga OCS/ECS greetz-tro by Lamers
• Loved the consistency, the constructivist art styling and the tempo. The rewind is pure design.
• rulezadded on the 2014-05-06 21:26:30
• demo Raspberry Pi Bad Hair Decade by Hedelmae [web]
• Quite a few people said it is a bit simplistic for the hardware. I am not really qualified to have an opinion about this, but I do know that this demo stayed with me since the first viewing. I re-watched it quite a few times, because I love the tune and because I love the 1980s-styled blurred visuals and simplistic geometries and overall relaxed feel of the demo.
• rulezadded on the 2014-05-02 21:49:50
• demo Commodore 64 Summer of 64 by Offence [web]
• As a committed ZX Spectrum coder I tried to watch, with some jealousy, more-or-less all major releases for C64 last year. There were many great releases, some ambitious, some clever, some beautiful, but none of them were nearly this hypnotic and ruthlessly effective. This demo is unforgettable and dirty and "dirty" here is intended as a complement.
• rulezadded on the 2014-05-02 20:22:17
• 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