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Planet Julia by Gray Alien Resistance
screenshot added by jarod on 2012-02-16 00:02:46
platform :
type :
release date : february 2012
  • 18
  • 11
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popularity : 54%
  • 0.62
alltime top: #8699
added on the 2012-02-16 00:02:19 by jarod jarod

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Hello scene. this is my first demoscene release.
I hoped to pack it as an 1k intro, but i have
zero experience in sizecoding, and i couldn't
get rid of those 133 bytes.

This intro is basicaly a classic raymarcher.
The heightfield is produced by distance estimation
of each point from julia set (Zn+1=Zn^2 +C). I perturbate the C parameter, just a little with time in order to get the effect of moving heightfield "feets".
Lighting normals are computed with central differences on x,z, and the number of iterations a point takes to "escape" from julia set as y axis.

Credits go to
i) Iρigo Quνlez: For his incredible site, from which i learned about
raymarching, and his 1k framework this intro uses.

ii) Gert Buschmann: For his wikibooks article on Julia set
distance estimation.

iii)glsl.heroku.com: Because i developed the shader there.

video here:
youtubi link
added on the 2012-02-16 00:15:12 by jarod jarod
total cool! will look at the article.. rulez!
rulez added on the 2012-02-16 00:34:03 by mad mad
really great for a firsty 4k !
some ambient music would rule in there much more.
rulez added on the 2012-02-16 02:15:24 by lsl lsl
ERROR: 0:1: error(#160) Cannot convert from '2-component vector of float' to 'highp float'

on amd card
added on the 2012-02-16 04:47:58 by tz tz
rulez added on the 2012-02-16 06:16:30 by rasmus/loonies rasmus/loonies
rulez added on the 2012-02-16 07:24:51 by sensenstahl sensenstahl
nice idea!
rulez added on the 2012-02-16 07:29:18 by dimouse dimouse
Not bad at all. As it's still over 1k, why not add some music and a few other colorschemes/variations?
added on the 2012-02-16 08:45:58 by britelite britelite
Indeed. Some music and a bit more variation (and speed to the animation) would do it wonders.
rulez added on the 2012-02-16 09:23:07 by Preacher Preacher
good firsty.
rulez added on the 2012-02-16 10:14:24 by seppjo seppjo
The full screen version crashes after one second, the debug version runs horribly slow here.
added on the 2012-02-16 12:46:52 by Cj Cj
good firstie :)
added on the 2012-02-16 13:07:33 by ferris ferris
Good first try and nice idea of doing the 2d julias in 3d, but I was bored after 3 seconds, and the intro lasted 4 minutes (at least on youtube). You need a lot more variation in camera movement, pacing, zooming etc.
added on the 2012-02-16 13:19:39 by Duckers Duckers
Iρigo Quνlez = Inigo Quilez I guess. :) (oh, and a decent first prod, yay!)
added on the 2012-02-16 13:21:33 by gloom gloom
See above comments
added on the 2012-02-16 13:30:34 by p01 p01
Decent first prod, yay!
rulez added on the 2012-02-16 13:48:09 by Emod Emod
Thanks for your motivating comments, and constructive criticism :)
I updated the shader code, hoping that amd gpus will compile it (i don't have an amd gpu to test it though).
added on the 2012-02-16 16:24:34 by jarod jarod
Quite nice, I waited for the bright blobs to start rising up but they never did..
added on the 2012-02-16 16:47:52 by leGend leGend
Full screen works fine now on Nvidia gpu but it's still very slow here. Some optimizations weren't bad.
added on the 2012-02-16 19:04:47 by Cj Cj
Cool! Esp. for first
rulez added on the 2012-02-16 20:11:23 by Optimonk Optimonk
Very good but why some "drops" appear ??
rulez added on the 2012-02-16 20:43:14 by BackSpace BackSpace
Keep 'em coming!
rulez added on the 2012-02-16 21:14:17 by Bobic Bobic
what lsl says!
@BackSpace: Aren't they video encoding artifacts?
rulez added on the 2012-02-16 21:38:30 by baah baah
rulez added on the 2012-02-16 22:38:15 by BiTL BiTL
Inigo Quilez = Iñigo Quilez
And indeed very nice first production :)
rulez added on the 2012-02-17 09:19:46 by xTr1m xTr1m
Great 1st prod, well done dude keep it up!
rulez added on the 2012-02-17 10:12:41 by Intrinsic Intrinsic
rulez added on the 2012-02-17 18:06:53 by Sir Sir
added on the 2012-02-26 01:13:47 by gentleman gentleman
really nice first prod, but what Preacher and britelite said.
added on the 2012-03-07 21:22:53 by Alpha C Alpha C
Nice effect.
rulez added on the 2012-03-12 22:14:27 by Nuclear Nuclear
rulez added on the 2012-03-18 21:50:07 by T$ T$

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