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demos/intros wolfenstein 3d miscellaneous bundeswehr |
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mc68000 math lib 32 bytes sin-gen 24 bit tga-viewer blitter example lz77 packer lz78 packer protracker replayer |
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after six years of absence i uploaded a little demo that implements a 320x480x12bpp truecolor c2p on the TT030. get it here.
this year's end is close so i decided to take the chance to release a little hires slideshow for the TT030. it shows images of 1280 x 480 pixels at 32 colors per scanline in an interlaced mode while a 50Khz stereo sample is replayed in the background. get it here.
oh dear, it's been quite a while and alas, ATARI activities around here are rather low at the moment to be honest. we finally managed to kick out a little invitation intro for this year's outline. the thing has been finished in quite a hurry, so don't expect it to be flawless by any means. be sure grab the intro and the full sourcecode (in case of interesed) right here.
today i released v1.0 of my lossy image codec called "BiQ". go find out more about it here.
as promised on the dhs coding board i released lz78 as an alternative to our previous packer, lz77. 
january 1st, 2006
minor site updade: i just added the stuff i wrote for alive #12.
here's a little update. today i released an optimized version of my TT030 fix for lance's mod replayer,
i also tidied up the sourcecode a bit.
today i added another article about efficient frustrum culling, 2d clipping and related topics,
originally written for alive #11.
a little update this time: i thought i'd present my method of performing
tiled texturemapping of arbitrarily sized bitmaps in 5 instructions per pixel. it's based upon an idea i've
made up last year or something but i thought one might be interested, escpecially in the days of the 3rd run of
CT60s *a little hint to 'lazy' democoders* ;).
in order to give a little lifesign i updated the wolf3d project page so you should now be able to download the whole collection of older versions. i'm sort of busy with my studies atm. but i hope i'll be able to carry on with wolf3d in late august.
after a bit of delay i released an updated version of my 68k math library which now provides new macros called "dcfix"/"fequ" for comfortably defining fixedpoint values and constants using a scientific notation.
thanks to gwEm another bug in lz77 could be found. so i've released lz77 v1.3, a hopefully final fix this time. thank you gwEm for helping me find the bug and compiling this with pure c (meaning a smaller + faster executeable).
may 2nd, 2005
after a quite long delay i finally released wolf3d v0.5 beta. new features include a high detail mode
for faster machines (strike the asterisk key to toggle), a 4 channel digisound engine and animated enemies!. please refer to the readme file for further information.
april 4th, 2005
a finally bugfixed version of lz77 is now available. thanks ultra/cream for testing the stuff.
april 3rd, 2005
i have just released my 2k3 TT030 fix to lance's protracker replay routine. perhaps this is useful to someone.
march 30th, 2005
believe it or not but our long long delayed falcon demo beams has finally been released.
january 15th, 2005
today i've added a short article describing how to let the blitter accelerate truecolor fadings.
september 24th, 2004
i added a little speed optimization to my math library's fsqrt macro.
despite using a divu.w inside its innerloop it gets much quicker than the old version since it never takes
more than 32 iterations to compute the squareroot regardless of the given number's size where as the
old version could consume up to 2^15 iterations. so this gives an obvious speed gain dealing with larger numbers.
july 23rd, 2004
i've updated my wolf3d project to v0.4 beta. this time i've added static objects besides some minor optical
snippets. read more on the wolf3d page
neither our beams demo nor my wolf3d project is dead and i'm planning to release 'something'
in the near future, so be prepared :). additionally i've put together a little lz77 cruncher you can use in
your demo if you want (it outperformes many traditional packers when it comes to decoding speed so i'd really
recommend this tool for animation and media stuff).
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