pouët.net

baze information 179 glöps

• general:
• level: user
• personal:
• first name: Milos
• last name: Bazelides
• portals:
• zxdemo: profile
• demozoo: profile

• 256b MS-Dos lattice by 3SC [web]
• Quote:

  @Baze how did you come up with the texture generation algorithm? I'm trying to wrap my mind around the

  Code:rcl dh,cl

  trick :)

  
  
  Right, if I remember correctly the RCL was just something that generated usable pseudo-random values inside DH register because Carry flag introduces a "random" bit and CL is automatically decremented by LOOP so it rotates the "random" value differently every iteration. The texture generator is pretty basic. It averages two pixels but also adds a small random value and places the result on the next scanline. I used NOT BH to mirror one of the texture coordinates in the process because the image must wrap nicely and look seamless.
• isokadded on the 2018-12-03 23:06:59
• 256b MS-Dos lattice by 3SC [web]
• Quote:

  still slow >10 years later!
  but still very good looking for 256b as well =)

  
  
  Insider note: I had to make it intentionally slow because a) it took less bytes, b) the number of iterations it takes to calculate the surface intersection is used for the illusion of lighting :) It is possible to increase the speed by a factor of 3 just by manipulating a single constant in the code but visually it would suffer. Thanks for all the positive replies, it's been quite a while already.
• rulezadded on the 2017-03-28 09:49:55
• demo ZX Spectrum Big Things by Speccy.pl [web]
• Solid and unabashedly blocky effort :) I was very pleased to meet Tygrys at the party place, we had a good chat. It takes a lot of effort to put something together whether you win or not and that is appreciated. I liked the design direction on this one, it feels purposeful and not simply cobbled together.
• rulezadded on the 2017-03-23 15:48:02
• demo ZX Spectrum Ultraviolet by HOOY-PROGRAM [web]
• Now that is what I call a well deserved win... and kudos for finishing it at the party which is the hardcore demo coder way :)
• rulezadded on the 2017-03-19 15:29:51
• 1k ZX Spectrum Irreality by Serzhsoft
• Serzhuka!
• rulezadded on the 2017-03-09 12:22:01
• 256b MS-Dos Puls by Řrřola [web]
• Impressive! Congratulations.
• rulezadded on the 2009-09-16 19:45:23
• wild ZX Spectrum Tap music by Halloween & Triumph
• Never thought this could really be a bit pattern precalculated in memory :) Hats off!
• rulezadded on the 2007-06-12 10:23:47
• 256b MS-Dos hell by Exceed [web]
• That structure looks familiar ;) Anyway, voxel traversal is a new approach in 256b - it's a good work and deserves thumb up. Well done.
• rulezadded on the 2005-10-11 13:12:14
• 256b Windows scx255 by Scoopex [web]
• kbab, why are you bitching, did you ever wrote an instruction? what kind of lameness and laziness are you talking about? making this stuff is far more sophisticated that coding in Java, you know :)
• rulezadded on the 2004-10-20 12:12:11
• 256b MS-Dos GridRunner by Gunnars Farvebio [web]
• Very good indeed!
• rulezadded on the 2004-02-04 18:42:45