pouët.net

Tjoppen information 634 glöps

• general:
• level: user
• personal:
• first name: .
• last name: .

• 64b MS-Dos shaker by fsqrt [web]
• Nice. Works fine in DOSBox if windowed but not in fullscreen, so file a bug report to them I think.
• rulezadded on the 2011-11-28 08:16:01
• demo MS-Dos Windows Genocyd by Genital Male-Function [web]
• Hey, this is pretty good. I didn't quite bother following the "story". The 3D looks fairly impressive for 1997 Maybe the music could be a bit better? That's all I can think of.
• rulezadded on the 2011-11-26 02:19:47
• demo Atari VCS Minute and a Bit by Tjoppen
• Nitro/Black Sun: What framebuffer? This is the VCS - everything must be done on a line-by-line basis :)
  
  cruzer: Yeah, that was actually the idea. I'm looking forward to more prods :>
  
  I'll post the summary of how the effects work I posted at AtariAge here as well:
  
  Text scroller: Just a frame buffer drawn using an asymmetric playfield
  Twister: Mostly tables and clever use of the priority flag in CTRLPF. HMxx values are computed on the fly
  Rotozoomer: A one-line buffer (two bytes, GRP0/GRP1) computed on the fly, x and y coords accumulate dx and dy respectively and are compared. The carries are ROLed in to form each pixel. Optimization could have allowed 24 horizontal pixels I think
  Plasma: In each line, look up leftmost pixel in table and stick in COLUBK, then do 10x ADC #Imm + STA COLUBK, where the #Imms are modified during VBLANK (self-modifying code). Stagger and interlace for 22 horizontal samples
  Pinwheel: 768 bytes of bitmap data form eight frames of one quadrant of the shape, mirrored horizontally and vertically (sort of). The few cycles left over were enough for the greet graphics
• isokadded on the 2011-11-25 11:00:20
• 4k intro Atari VCS SillyFiller by Noice [web]
• The music is great and makes good use of phasing (playing the same note on both channels). The effects are OK. Thumb up overall.
• rulezadded on the 2011-11-23 14:59:39
• demo Wild NEC TurboGrafx/PC Engine Le petit chat n'est pas mort by Punkfloyd [web]
• TurboGrafx this time? The platforms keep getting more and more obscure :)
• rulezadded on the 2011-11-23 13:11:09
• demo NEC TurboGrafx/PC Engine Shipping is a feature by Punkfloyd [web]
• Good music and obscure platform -> thumb up
  It feels like it's possibe to do better visually on the turbografx though.
• rulezadded on the 2011-11-23 10:25:14
• demo Atari Jaguar NyanJag by Jagware [web]
• Again, I'd be a hypocrite if I didn't thumb this up :)
  Compiled virtualjaguar to try it - it worked. It pegs an entire core on my i5 though, making the thing slightly laggy. I guess the Jag is too rad for my laptop to handle.
  inb4 BiTL tells you to burn in hell.
• rulezadded on the 2011-11-22 23:59:56
• 4k demo Atari VCS xSqueeker by Szuwarek & Factor 6
• Youtube for those who don't want to have to grab MESS
  I hope what I said above didn't come out too negative :o
• isokadded on the 2011-11-17 11:11:00
• 4k demo Atari VCS xSqueeker by Szuwarek & Factor 6
• OK, this was a strange one. I can't make out what the speech synth is saying (polish?), so I won't comment on it. What that QR code is I have no idea.
  Anyway, then main feature here is obviously the music, which is rather good. It uses a four-channel square wave synth with 16-bit frequency accuracy per channel. The amplitude of the channels are half of each other due to the way the carry bits are ROL:ed into $81, which is then fed into AUDV0. This means each channel corresponds to one bit in AUDV0 (I think). In other words, props are in order for a clever way of getting a decent and lean synth out of this thing.
  
  Clever as the synth is, it doesn't make up for the lack of visuals and a number of technical problems. First off, the number of scanlines per frame is entirely inconsistent - first 260, then 239, then 292? This confuses Stella, making the music sound very choppy, but works fine in MESS. I haven't tested this on the real thing yet though. Is this done in order to get the correct tempo for the music perhaps?
  Finally, it'd be nice if at least the waveform was visualized via GRP0/GRP1 or something.
  
  Thumb up for the music but piggie overall.
• isokadded on the 2011-11-17 00:23:01
• demo Atari Falcon 030 We Reached Stars by Vital-Motion! [web] & Orion_ [web]
• The music was good. The water/star thing worked really well.
• rulezadded on the 2011-11-16 21:07:36