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rise by lyc rise by lyc
inspired by the incredible demo from 2001: [link]


it was quite a challenge to render this thing, in several ways:

1. the deep fractal iteration is pretty difficult to handle numerically, and getting a normal to this thing's surface (which it technically, in the limit, doesn't have) is pretty ugly.

2. it was rendered with 3 different builds of my renderer (big thanks to *Aexion for help with the rendering!), which means keeping track of lots of system variables and state files in various states of completion...

3. the builds i used to render didn't have proper state-combining functionality, so i integrated that into my latest code which was rendering a different scene by that time.

4. the temptation to stop rendering this and bake some of the newer stuff was immense!

edit: improved image quality, and it's now png :D

~feckt wanted to render something like this, so i hacked together a little application for him in like 5 minutes that will produce an .obj file of the sierpinski tetrahedron. it takes a commandline parameter for the recursion depth, the default is 4; interested parties can download that here: [link]
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:iconrobloxbuddie:
RobloxBuddie Featured By Owner Jun 2, 2016
how do you consider this you're "worst" art work???
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:iconal1babaa:
al1babaa Featured By Owner Sep 20, 2013  Professional Artist
Nice pic - do ypu still have your app for creating the sierpinski tetrahedron ?
I would like to try it out : -)
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:iconlyc:
lyc Featured By Owner Sep 20, 2013
sorry it's definitely way too old to be usable by now, it was hardcoded for 4 threads and crashes on anything else, besides many other problems. oh, and it isn't even "usable", the exe just runs and spits out this bmp file.

on the plus side, indigo renderer will eventually support implicit surfaces, and this guy will definitely feature in there :)
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:iconal1babaa:
al1babaa Featured By Owner Sep 20, 2013  Professional Artist
Thanks :-)
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:iconmacaronnicat:
Macaronnicat Featured By Owner Jun 11, 2013  Hobbyist Artist
cool...
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:iconseied:
seied Featured By Owner Feb 6, 2012
Beautiful & inspirational.
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:iconcristalent:
CristalEnt Featured By Owner Mar 26, 2011  Hobbyist General Artist
its beautiful :)
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:iconlyc:
lyc Featured By Owner Apr 4, 2011
thanks! :thanks:
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:icontrance-plant:
Trance-Plant Featured By Owner Jan 30, 2010
Very beautiful 3D-fractal!
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:iconlyc:
lyc Featured By Owner Jan 30, 2010
appreciated :thanks: to be honest though, i think this is one of my worst / least impressive ones ;P
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:iconanaglyph:
anaglyph Featured By Owner Dec 15, 2009
I demand stereo pair!
Reply
:iconlyc:
lyc Featured By Owner Dec 16, 2009
unfortunately i can't oblige, most of my images are once-off (produced by code alone, since modified).
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:iconanaglyph:
anaglyph Featured By Owner Jan 14, 2010
do you still have hittest formula? my brain hurts when I am trying to derive those things.
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:iconlyc:
lyc Featured By Owner Jan 15, 2010
don't think so, sorry :hmm:
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:icontrick-catalyst6:
Trick-catalyst6 Featured By Owner Nov 1, 2009  Professional Interface Designer
this is insane
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:iconlyc:
lyc Featured By Owner Nov 1, 2009
thanks, glad you like it ;) i've done better works since, however! (imo)
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:icondoppiac:
DoppiaC Featured By Owner Sep 12, 2009  Hobbyist Digital Artist
This thing is incredible! *_*
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:iconlyc:
lyc Featured By Owner Sep 13, 2009
thanks, it's an older work but still quite interesting i hope :)
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:iconvoid-hamlet-herself:
Void-Hamlet-Herself Featured By Owner May 27, 2009  Hobbyist Digital Artist
Still need a little more space above and below, though. NEED.
Reply
:iconlyc:
lyc Featured By Owner May 27, 2009
i should do a new version just for you <3

can you gimme a sketch of the composition? the object is basically an icosahedron, it's just very distorted here because of a wide field of view.
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:iconvoid-hamlet-herself:
Void-Hamlet-Herself Featured By Owner May 27, 2009  Hobbyist Digital Artist
Yeah, I know what it basically is. I just need to see a bit more of the background above and below it. Like, I feel the inexplicable urge to add 2 cm of background above and below the icosahedron's top and lowest edge, respectively.
Reply
:iconvoid-hamlet-herself:
Void-Hamlet-Herself Featured By Owner May 27, 2009  Hobbyist Digital Artist
Ding! - I Return.

This one piece, it keeps haunting me. Pulling me back. Argh.
Reply
:iconcasimirsblake:
CasimirsBlake Featured By Owner May 15, 2009
Depth-of-field for the win, or something. Unique, but not abstract, the shape is surprisingly simple, despite looking complex from a distance. Good stuff!
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:iconilfolini:
ilFOLINI Featured By Owner May 15, 2009
It's inspired by the Menger Sponge? We've been studiyng the Menger Sponge at school this year, and it looks symilar :D
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:iconlyc:
lyc Featured By Owner Aug 18, 2009
whoops, sorry i missed this comment!

yes, it's quite similar: instead of the centre missing from a square (and repeated on the remaining parts), it's the same process starting with a triangle.
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:iconilfolini:
ilFOLINI Featured By Owner Aug 18, 2009
^^
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:iconthr337:
thr337 Featured By Owner Jan 14, 2009
very cool man. reminds me of the platonic solid.
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:iconlyc:
lyc Featured By Owner Jan 14, 2009
thanks :) it is indeed based on the icosahedron, with a simple fractal iteration based on its constituent tetrahedra.
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:iconnickmeister:
Nickmeister Featured By Owner Nov 14, 2008
excellent work. its a very impressive render
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:iconlyc:
lyc Featured By Owner Nov 15, 2008
thank you :) since i rendered this my application has evolved a lot, and now produces much crisper images (here a little over blurred)
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:iconnickmeister:
Nickmeister Featured By Owner Nov 15, 2008
great. I quite like the blur, gives it more depth when it only focuses at a certain distance
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:iconhop41:
Hop41 Featured By Owner Nov 4, 2008
It easy to make sierpinski octahedra and tetrahedra since squares and equilateral triangles tile a plane.
But tiling the plane with pentagons is a different thing altogether. The largest object seems to be a 5 sided pyramid. But it doesn't look like the smaller pyramids meet each other along a line lieing in the pentagon base face.
The top triangle face looks like an isosceles triangle similar to the original but the bottom two seem like shorter scalene triangles.
Wish I could move this thing about in 3 dimensions so I could get an idea of what's going on.
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:iconilfolini:
ilFOLINI Featured By Owner Aug 18, 2009
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:iconturon-marcano:
turon-marcano Featured By Owner Oct 18, 2008
Very nice
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:iconlyc:
lyc Featured By Owner Oct 19, 2008
thanks :)
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:iconlovessecret:
LovesSecret Featured By Owner Aug 22, 2008
holy crap o:
you = awesome (:
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:iconlyc:
lyc Featured By Owner Aug 22, 2008
thanks, glad you like :) this kinda stuff is quite easy to make at my age if you've learnt enough maths over the years... really my only contribution is setting up the camera, the rest is entirely made with the sort of equations you'll find everywhere in nature so i can't really take credit for it!
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:iconlovessecret:
LovesSecret Featured By Owner Aug 22, 2008
xD well, its still an awesome shot ^^
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:icondemisart:
DEMISART Featured By Owner May 12, 2008  Hobbyist Digital Artist
You are crazy ! How did you manage to render this ? How long did it take ?
Did you use a fractal program or a 3d one ?
:spotlight-left: :bow: :spotlight-right: You rock !
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:iconlyc:
lyc Featured By Owner May 12, 2008
lol yes i am crazy ;P it was generated using a mathematical procedure coded in c++, visualised by my allura rendering system (it's still in its infancy). rendering time was probably a few hours on my quadcore.
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:icondemisart:
DEMISART Featured By Owner May 12, 2008  Hobbyist Digital Artist
You have a quadcore and took you hours ? :omfg: :shocked: :jawdrop: :eyepopping:
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:iconlyc:
lyc Featured By Owner May 12, 2008
hardcore optimised 64bit build, 4x3ghz

yes, i try to make the most of my available resources :)
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:icontheloc:
theLOC Featured By Owner Dec 22, 2007
All those sierpinskis... What software do you use?
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:iconlyc:
lyc Featured By Owner Dec 22, 2007
my renderer, allura. spectral, physically-based rendering, metropolis-hastings sampling and all that jazz.
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:iconzekrobzs:
ZeKRoBzS Featured By Owner Nov 5, 2007  Hobbyist General Artist
omg xD looks amazing:O!
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:iconlyc:
lyc Featured By Owner Nov 5, 2007
actually my program's made a lot of progress since i rendered this :D thanks!
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:iconerthbndangl:
erthbndangl Featured By Owner Sep 28, 2007
Wow. Thats incredible! It looks so real, like a plastic model almost. :love:
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:iconlyc:
lyc Featured By Owner Sep 29, 2007
i'm using a prety advanced rendering method now, based on this dude's work: [link]

the plastic look worked out kinda ok here (glad you like it!), but i want to investigate other - more interesting - reflectance models (esp. metals) after my exams :)
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:iconerthbndangl:
erthbndangl Featured By Owner Sep 29, 2007
Sounds neat! ;P I'm glad you understand all of it, cause it looks a little too complex for my head..then again as you say the life of a programmer...
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:iconsequential:
sequential Featured By Owner Sep 24, 2007  Professional Digital Artist
Very ominous looking. Well done!
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September 12, 2007
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