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bigpimpin information 27 glöps

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• demo invitation Commodore 64 tUMo8: the better party by Smash Designs [web]
• Another classic demo makes it way on to 8 bit. Not aswell executed as Second Reality, the frame rate is way to slow, maybe on an smaller screen size it might be faster. The music is awsome. I think that even Kb will be pleased to hear such a nice conversion : )
• isokadded on the 2004-08-29 20:37:09
• demo invitation Windows tUM 2004 by Smash Designs [web]
• Another classic demo makes it way on to 8 bit. Not aswell executed as Second Reality, the frame rate is way to slow, maybe on an smaller screen size it might be faster. The music is awsome. I think that even Kb will be pleased to hear such a nice conversion : )
• isokadded on the 2004-08-29 20:14:39
• demo Commodore 64 Cycle by Booze Design
• This one is off tha hook!... jaw dropping full frame effects..and 3 selectable kick-ass tunes... with the fx still in-sync..Dane still some how manage to squeez some fresh sound out of the MOS-6581. Thank you for this wonderfull experience.
  
  btw: what happend to the side borders? :D
• rulezadded on the 2004-02-29 21:43:06
• demo Commodore 64 The Last Traktor 3 by Horizon
• ah yeah...this is whut i am talking about..it's the bomb..one of my all time fav demo. The raytracin and the vector parts are the best ever done on the C64. The music is also very good, right now the Vector tune by Boogaloo is pumping out of my Cambridge speakers..thankz to Sidplay.
  I have found some intresting facts about this demo on comp.sys.cbm, is a bit long but it's worth it..
  
  Here's the story about the demo:
  
  I and Exilon had a great demo idea for the Amiga. We spent a
  whole year coding on that demo - not only because the demo
  was THAT complicated, but we did not know all that much about
  coding on the Amiga. The demo is called 'Virtual Intelligence',
  and contains some nice 3D vector objects with 8-color bitmaps
  on the surfaces. As we developed the demo, I promised a stupid
  thing:
  
  I will not return any Coca-Cola cans for recycling until I win
  another demo-competition!
  
  Oooops! When we released the 'Virtual Intelligence' demo at
  The Party'91 we only reached 4:th place (out of 25, so it was
  not _that_ bad, for a first-time demo)!!!
  - Shit! I thought. We will probably never have such a good demo
  again for the Amiga. When will I be able to return my Coke-cans?
  
  A few weeks after The Party, we sat at my place, calculating the
  possibility of making a good filled vector routine on the C64,
  based on the vector routine we have made on the Amiga. We dis-
  covered that it really was possible. Our idea was that all
  routines in the demo must be fully optimized, from the multi-
  plications to the line drawing to the filling and the double-
  buffering.
  
  The fundamental principles:
  Optimizing by squeezing machine cycles would not gain enough.
  The optimization must be on the algorithms themselves. Code
  optimizing is easy when the algorithm is simple.
  
  We discovered that the EOR filling in columns is the best. We
  decided to sacrifice memory for a complete 16*16 char fill as
  an unrolled loop. The fill algorithm could not be more simple
  than that, so we considered it fully optimized. Thanks to
  the fill being an unrolled loop, we could take advantage of
  the fact that a rotating object cannot reach any of the
  corners of the 128*128 pixel area without clipping at the
  sides of the square area. We then filled only the circle
  that the objects could occupy, gaining even more time.
  
  The line routine was a little harder. It had to be lightning
  fast, but also 100% accurate. It had to produce exactly the
  same line when we drawed it from X1,Y1 to X2,Y2 as when we
  drawed it from X2,Y2 to X1,Y1. We already knew how we made
  the Amiga blitter do this, so we tried to emulate the
  blitter algorithm in another unrolled loop. When we then
  drawed lines, we jumped into the unrolled loop at the right
  position depending on where the line should start, and put
  an 'RTS' where the line should end, restoring the code when
  the line was finished. Even this we considered fully opti-
  mized.
  
  Then there were the vector calculations. We used most of the
  ideas from the Amiga demo. We use a 3*3 matrix multiplication
  routine. We took the matrix creation routine and converted it
  to 6502 assembler, but used 8-bit arithmetics instead. The big
  problem was to multiply the vectors fast enough. We had to
  invent a really fast multiplication routine. We discovered the
  square-sum method, and implemented the matrix multiplication
  in an unrolled loop as well, using 6-bit (I think) precision
  to avoid overflow and rounding problems. Some rounding was
  built-in into the square-sum tables, as far as I can remember.
  As the square-sum multiplication only takes about 30 cycles
  per element, we considered this fully optimized as well.
  
  
  What have we got?
  
  - A fully optimized unrolled fill routine
  - A fully optimized unrolled line routine
  - A fully optimized matrix multiplication routine
  - A fully optimized unrolled clear routine, based on
  the fill routine
  
  No compromises. It took us almost half a year to create
  all these things. Nearly half of the time we sat at my
  kitchen table calculating and discussing. We did not code
  anything until we knew that we had the best algorithm.
  
  During the process, we came up with new ideas: the glenz,
  the pixel transform, and the ray tracing part. The 2D
  transform took us only about 1 week to develop. The glenz
  was hard to do, because it had both transparent and non-
  transparent surfaces (which no glenz I've seen after that
  have had, only transparent surfaces). We used sprites for
  the non-transparent surfaces, thus having two unrolled line
  routines and two unrolled fill routines filling up the
  memory completely.
  
  
  Well, Exilon could not come to the party, so I and Pernod
  had to finish the demo ourselves. I optimized the 2D
  transform analyzer a lot, and had LOTS of trouble crunching
  the vector part. I delivered it several hours too late to
  the party staff, but they allowed us to compete anyway.
  Well, you all know the rest. We won by 1 vote (I think)
  over Censor Design. Psycho/Censor was not all that happy,
  since he was the one who helped me to crunch the demo.
  Thanks a lot, Psycho!!!
  
  We won 6000 Danish crowns, but they were not able to pay
  us because the party was a big financial catastrophy.
  But when I got home, I could at last return all my Coke
  cans. There were 639 of them, giving me 319:50 SEK. I
  kept my promise...:-)
  
  
  What did I want to say with this? Well, I want to say that
  I think this demo is the best I and Exilon ever made and
  ever will make. I also think that it still has some of the
  fastest 3D filled vector routines on the C64. I am mighty
  proud of it!!!
  
  If any of you want to see the Traktor demo, I'll be glad
  to mail it to you. Also, I am willing to release the
  source. I am not worried that people will rip the routines
  without credits, because I know that we made it first.
  
  I will work on the source with Paul and then post it on
  the net or directly to the interested ones by e-mail.
  
  If any of you has any questions, email me at:
  
  erenie@ere.ericsson.se
  
  That's all folks!!!
  
  Linus Nielsen/Boogaloo of Horizon
  
  
  
  
• rulezadded on the 2004-02-10 21:55:00
• 64k Windows Beyond by Conspiracy [web]
• BoyC, how about a grand tour starting with the sun > mercury > venus > and the rest?
• rulezadded on the 2004-02-03 21:58:42
• 64k Windows Beyond by Conspiracy [web]
• it's like wachting a NASA grand tour from the Voyager missions, music sutters like hell :( P4 2.4G/1024mb/GFX256mb/SBlive
• isokadded on the 2004-01-25 19:32:05
• demo Commodore 64 You Know The Routine by Camelot [web]
• Awsome piece of 8 bit art..i love the oldskool..... cuz i am an old fool! @Slammer whut about Tower of Power II?
  
• rulezadded on the 2004-01-20 21:49:55
• demo Windows fr-minus-06: ghettorocker by Farbrausch [web]
• it's tha bomb... i like those hoe's moving those curves!!
• isokadded on the 2003-05-11 20:40:58
• demo Windows Still Sucking Nature by Federation Against Nature [web]
• awsome piece of SW rendering... i got 30 frames on my P4 2,4Ghz 1024 Mem
• rulezadded on the 2003-05-11 20:39:13
• demo Amiga AGA Magia by The Black Lotus [web]
• very nice.. the intro is the best part!!... i also like the part with the decepticons logo!
• rulezadded on the 2003-05-11 20:34:01