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22 comments

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swah
In the 90's, I always wondered how this stuff worked.
bigiain
And now it's 2011, I'm almost expecting some bright-young-thing to post up an alternative method, which involves offloading the 3d render and animation to the video card, painting that onto an invisible html5 canvas, then using JavaScript to paint ASCII characters over the top based on the average brightness/colour of regions of the hardware generated image...
JonnieCache
Isn't that basically how the various ASCII renderers for 3d games over the years have worked? Minus the html5 canvas obviously, although being as you can run the entire of quake in javascript/webgl, that can't be far off.

Good old aalib.

http://aa-project.sourceforge.net/

mrpollo
I'm starting to grow even more jealous, this guy has some serious knowledge of his craft
a1k0n
In a highly technical post like this I'm never sure how well I'm explaining it. I tried to keep things at the high school trig/algebra II level for this one. I've proofread it a billion times now but is there anything I can clarify?
burgerbrain
Do you have any / know of any good documents about C obfuscation? I think that is the part that fascinates me most.
a1k0n
I don't know of any, but browsing through the archives of ioccc.org is probably an education in itself. That's where I got my own inspiration.
[dead] xiaoqmanee
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rmccue
As a high school student, I can confirm you explained it well and I was able to follow it the entire way though. :)
zkan
Congratulations. In my opinion, math is not easy to explain, but you did it very well. :)
lachenmayer
I think I discovered a tiny problem in your 'relative proportions' formula picture. you have

    y'   y
    -  = -
    z'   z'
in the first line. The z' on the bottom right should be just a z, right? Other than that, this is perfectly clear, and I understood it even though I just came out of high school and haven't started college yet! Absolutely fantastic work!

EDIT: Fraction format

a1k0n
Oops. Actually it's not a z' in the denominator in the second fraction, but a comma following the fraction bar. That's confusing; I have removed it. Thanks!
acangiano
Would you really need to see a resume before hiring this guy?
a1k0n
Anecdotally, yes.
dmuino 

  <resume>
    http://a1k0n.net/
  </resume>
abjr
If you haven't done it yet, click the code on the bottom of that page :)
gabebw
A slightly unobfuscated version of that code:

  counter=0;
  pointer;
  main(){
    while(counter<641){
      for(pointer=0;
          "##K#8(38D-##C]L5870.X7\\M_b;90\\"
          "MC-M/NZGB6Q,I0VGB6a0FbN<VG.6Q\\bNb7^@`X=N@`XQaOVX:^]NX=:Z8PY]B`:>P"
          "NY8^$#SM):XA"[counter/6]-35>>counter++%6&1;
        pointer++);
      putchar(" _/\\\n,`)('<-"[pointer]);
    }
  }
buff-a
javascript, 3D, and mathematica. A very smart, yet very pragmatic fellow. Hired.
latentflip
Don't forget the ability to explain it well in writing!
identitycrisis
As a fellow Yahoo good to still see people like andy *STILL around
ajays
I agree! (another purple-bleeder here)