Since 1998 I've developed about 60 demoscene productions, mostly featuring realtime and procedural graphics, but not only. Making these is how I learnt programing and computer graphics in my early years and many of the articles in this page are directly motivated by these.
Please note that many of the demos presented here come with source code for you to explore (bear in mind that often times the size of the binary was a priority, not architectural elegance, but there might still, maybe there's something to be learnt form it).
You can also download the demos themselves to run them locally on your computer, or you can simply watch the videos. I recommend the former since download times are much faster and the image quality better. Enjoy!
Please note that many of the demos presented here come with source code for you to explore (bear in mind that often times the size of the binary was a priority, not architectural elegance, but there might still, maybe there's something to be learnt form it).
You can also download the demos themselves to run them locally on your computer, or you can simply watch the videos. I recommend the former since download times are much faster and the image quality better. Enjoy!
Hoody
4kb procedural image, 2020
4096 bytes executable containing all objects, textures and rendering engine. The image is a big mathematical formula, where objects are SDFs and the scene is raymarched in GLSL.
Download: iquilezles, pouet
4kb procedural image, 2020
4096 bytes executable containing all objects, textures and rendering engine. The image is a big mathematical formula, where objects are SDFs and the scene is raymarched in GLSL.
Download: iquilezles, pouet
Forest
24kb demo, 2012
A 24 kilobytes realtime demo (code and data) showing some procedural content and OpenGL rendering.
Video: youtube
24kb demo, 2012
A 24 kilobytes realtime demo (code and data) showing some procedural content and OpenGL rendering.
Video: youtube
Fruxis
4kb procedural image, 2012
A pathtracer, scene descritpion, texture, objects and display engine, all in a 4096 bytes executable. It was 3rd at TRSAC.
Download: iquilezles, pouet
4kb procedural image, 2012
A pathtracer, scene descritpion, texture, objects and display engine, all in a 4096 bytes executable. It was 3rd at TRSAC.
Download: iquilezles, pouet
Photosphere
demo, 2011
Realtime rendering of music reactive, glowing cubes, for my VJ night sessions.
demo, 2011
Realtime rendering of music reactive, glowing cubes, for my VJ night sessions.
Hammer
demo, 2011
Realtime and reactive rendering. It was used during a set I performed, but never released as a finished demo.
demo, 2011
Realtime and reactive rendering. It was used during a set I performed, but never released as a finished demo.
Elevated
4kb demo, 2009
A 4096 bytes executable. It renders polygons with deferred texturing and lighting. Procedural models, textures and soundtrack. It was a collaboration with TBC, and got 1st position at Breakpoint.
Download: iquilezles, pouet
Source code: madethisthing
Video: youtube, youtube
Live screening: youtube
4kb demo, 2009
A 4096 bytes executable. It renders polygons with deferred texturing and lighting. Procedural models, textures and soundtrack. It was a collaboration with TBC, and got 1st position at Breakpoint.
Download: iquilezles, pouet
Source code: madethisthing
Video: youtube, youtube
Live screening: youtube
Pack
4kb procedural image, 2008
A 13 kilobyte executable containing four of the previously made procedural SDF images
Download: iquilezles
4kb procedural image, 2008
A 13 kilobyte executable containing four of the previously made procedural SDF images
Download: iquilezles
Leizex
4kb procedural image, 2008
A 4096 bytes executable rendering a procerural image by raymarching a SDF.
Download: iquilezles, pouet
Shader Source: shadertoy
4kb procedural image, 2008
A 4096 bytes executable rendering a procerural image by raymarching a SDF.
Download: iquilezles, pouet
Shader Source: shadertoy
Organix
4kb procedural image, 2008
4096 bytes executable rendering a procedural image through raymarching of an SDF. Made 1st position at Function 2008.
Download: iquilezles, pouet
Shader Source: shadertoy
4kb procedural image, 2008
4096 bytes executable rendering a procedural image through raymarching of an SDF. Made 1st position at Function 2008.
Download: iquilezles, pouet
Shader Source: shadertoy
Slisesix
4kb procedural image, 2008
A 4096 bytes procedural image that uses raymarching of Signed Distance Fields. It got 1st position at Euskal Encounter demoparty.
Download: iquilezles pouet
Shader Source: shadertoy
4kb procedural image, 2008
A 4096 bytes procedural image that uses raymarching of Signed Distance Fields. It got 1st position at Euskal Encounter demoparty.
Download: iquilezles pouet
Shader Source: shadertoy
Kindercrasher
4kb demo, 2008
A 4096 bytes executable showing realtime rendering in OpenGL. It got 1st position at Inspire demoaprty.
Download: iquilezles pouet
Source code: madethisthing
4kb demo, 2008
A 4096 bytes executable showing realtime rendering in OpenGL. It got 1st position at Inspire demoaprty.
Download: iquilezles pouet
Source code: madethisthing
Eleixane
4kb procedural image, 2008
A 4096 bytes executable rendering a procedural image. It uses some catmul-clark subdivision, mesh compression and raytracing.
Download: iquilezles, pouet
4kb procedural image, 2008
A 4096 bytes executable rendering a procedural image. It uses some catmul-clark subdivision, mesh compression and raytracing.
Download: iquilezles, pouet
Ixaleno
4kb procedural image, 2008
A 4096 bytes executable rendering a procedural image through raymarching. It got 1st position at Breakpoint 2008 (Bingen, Germany)
Download: iquilezles, pouet
Video: youtube
4kb procedural image, 2008
A 4096 bytes executable rendering a procedural image through raymarching. It got 1st position at Breakpoint 2008 (Bingen, Germany)
Download: iquilezles, pouet
Video: youtube
Inslexia
4kb procedural image, 2007
A 4096 bytes executable rendering an image compressed through my own wavelet system and some procedural decoration on top. It was 4th position at TUM 2007 demoparty.
Download: iquilezles, pouet
4kb procedural image, 2007
A 4096 bytes executable rendering an image compressed through my own wavelet system and some procedural decoration on top. It was 4th position at TUM 2007 demoparty.
Download: iquilezles, pouet
January in Cubeland
demo, 2007
A realtime demo showing analytical ambient occlusion through SDFs (CPU computed), and true motion blur. I never finished it. Music by Khrome.
demo, 2007
A realtime demo showing analytical ambient occlusion through SDFs (CPU computed), and true motion blur. I never finished it. Music by Khrome.
Luxo 4k
4kb demo, 2007
A 4096 bytes executable showing realtime rendering of a compressed animation and some real synthetized music. It was a collaboration between rgba and Conspiracy.
Download: iquilezles, pouet
Video: youtube
4kb demo, 2007
A 4096 bytes executable showing realtime rendering of a compressed animation and some real synthetized music. It was a collaboration between rgba and Conspiracy.
Download: iquilezles, pouet
Video: youtube
Kindernoiser
4kb demo, 2007
A 4096 bytes executable showing realtime raymarching of a julia fractal SDF in the GPU. I wrote my own music again for this one. It got 1st position at BCN Party 2007.
Download: iquilezles, pouet
Source code: madethisthing
Video: youtube
4kb demo, 2007
A 4096 bytes executable showing realtime raymarching of a julia fractal SDF in the GPU. I wrote my own music again for this one. It got 1st position at BCN Party 2007.
Download: iquilezles, pouet
Source code: madethisthing
Video: youtube
Stiletto
4kb demo, 2007
A 4096 bytes executable realtime rendering a walking cycle. It implements automatic vertex skinning, mesh compression, mesh smoothing, procedural walk cycle and sound generation. It was 2nd at Assembly 2007.
Download: iquilezles, pouet
Video: youtube
4kb demo, 2007
A 4096 bytes executable realtime rendering a walking cycle. It implements automatic vertex skinning, mesh compression, mesh smoothing, procedural walk cycle and sound generation. It was 2nd at Assembly 2007.
Download: iquilezles, pouet
Video: youtube
Kinderplomber
4kb demo, 2007
A 4096 bytes executable rendering in realtime a compressed mesh with dynamic radiosity. It also implements Catmull-Clark subdivision, and my own music track. It was 4th at Breakpoint 2007.
Download: iquilezles, pouet
Source code: madethisthing
4kb demo, 2007
A 4096 bytes executable rendering in realtime a compressed mesh with dynamic radiosity. It also implements Catmull-Clark subdivision, and my own music track. It was 4th at Breakpoint 2007.
Download: iquilezles, pouet
Source code: madethisthing
Kinderpainter
4kb demo, 2006
A 4096 bytes executable, implementin realtime raytracing in the GPU of a few conic sections, and my own music track. It was 1st position at BCN Party 2006.
Download: iquilezles, pouet
Source code: madethisthing
4kb demo, 2006
A 4096 bytes executable, implementin realtime raytracing in the GPU of a few conic sections, and my own music track. It was 1st position at BCN Party 2006.
Download: iquilezles, pouet
Source code: madethisthing
4 Verts
4kb demo, 2005
A realtime rendering demo using only GLSL fragment shaders on two triangles. It was the beginning of what would become Shadertoy four years later. Music by Wizard.
4kb demo, 2005
A realtime rendering demo using only GLSL fragment shaders on two triangles. It was the beginning of what would become Shadertoy four years later. Music by Wizard.
Transfiguracion
4kb procedural image, 2005
A procedural image based on SDF raymarching of a fractal (a 4D Julia set). It run on the CPU, but was almost realtime.
4kb procedural image, 2005
A procedural image based on SDF raymarching of a fractal (a 4D Julia set). It run on the CPU, but was almost realtime.
Variaciones
4kb procedural image, 2005
A 4096 bytes executable rendering some pointcloud generated form trigonometric iterations. Uses commercial music, by Robert Insfiesta.
4kb procedural image, 2005
A 4096 bytes executable rendering some pointcloud generated form trigonometric iterations. Uses commercial music, by Robert Insfiesta.
195/95/256
64kb demo, 2005
A 64 kilobyte executable demo, featuring realtime rendering, subdivision meshes, procedural textures and animations, and sound synthesis. It got 1st position at Euskal Encounter 2005.
Download: iquilezles, pouet
Video: youtube
64kb demo, 2005
A 64 kilobyte executable demo, featuring realtime rendering, subdivision meshes, procedural textures and animations, and sound synthesis. It got 1st position at Euskal Encounter 2005.
Download: iquilezles, pouet
Video: youtube
Xenomorphic
demo, 2005
Realtime rendering through Opengl with shaders, made together with my colleagues. It got 1st position at IFParty 2005 (Valencia, Spain).
Download: iquilezles, pouet
Video: youtube
demo, 2005
Realtime rendering through Opengl with shaders, made together with my colleagues. It got 1st position at IFParty 2005 (Valencia, Spain).
Download: iquilezles, pouet
Video: youtube
Paradise
64 kb demo, 2004
A 64 kilobyte executable showcasing realtime rendering, shaders, sound synthesis, mesh compression, catmul-clark subdivision, and procedural modeling, texturing and animation. It got 1st position at Euskal Encounter 2004.
Download: iquilezles, pouet
Video: youtube
64 kb demo, 2004
A 64 kilobyte executable showcasing realtime rendering, shaders, sound synthesis, mesh compression, catmul-clark subdivision, and procedural modeling, texturing and animation. It got 1st position at Euskal Encounter 2004.
Download: iquilezles, pouet
Video: youtube
Euskal 12 Invitation
demo, 2004
A realtime rendering demo in OpenGL with shaders, made as a team effort with my friends.
Download: iquilezles, pouet
Video: youtube
demo, 2004
A realtime rendering demo in OpenGL with shaders, made as a team effort with my friends.
Download: iquilezles, pouet
Video: youtube
Still too early
demo, 2004
A very simple and corny software rendering I made. Music from the movie "Le fabuleux destin d'Am�lie Poulain"
Download: iquilezles, scene.sp, pouet
demo, 2004
A very simple and corny software rendering I made. Music from the movie "Le fabuleux destin d'Am�lie Poulain"
Download: iquilezles, scene.sp, pouet
Baile de energia
4kb procedural image, 2004
A software rendered procedural image in 4096 bytes of code and data, showing an IFS fractal.
4kb procedural image, 2004
A software rendered procedural image in 4096 bytes of code and data, showing an IFS fractal.
R.E.D
demo, 2003
A realtime rendering demo in OpenGL with shaders, made with my friends. Ww won the BCN Party with it.
Download: iquilezles, pouet
demo, 2003
A realtime rendering demo in OpenGL with shaders, made with my friends. Ww won the BCN Party with it.
Download: iquilezles, pouet
Dp4inv
demo, 2003
A realtime OpenGL demo with shaders, made together with friends.
Download: iquilezles, scene.org, pouet
Video: youtube
demo, 2003
A realtime OpenGL demo with shaders, made together with friends.
Download: iquilezles, scene.org, pouet
Video: youtube
Navmo
demo, 2002
A realtime rendering demo in OpenGL, before shaders existed. Made together with my friends.
Download: iquilezles, pouet
Video: youtube
demo, 2002
A realtime rendering demo in OpenGL, before shaders existed. Made together with my friends.
Download: iquilezles, pouet
Video: youtube
Pesadilla
4kb procedural image, 2002
A procedural image made in 4096 bytes of code and data. It's a Julia set with an orbit trap algorithm for coloring.
4kb procedural image, 2002
A procedural image made in 4096 bytes of code and data. It's a Julia set with an orbit trap algorithm for coloring.
Resplandor
4kb procedural image, 2002
A executable computing a procedural image from 4096 byte of code and data. The terrain was rendered by using raymarching of a signed noise field. I implemented some volumetric lighting.
4kb procedural image, 2002
A executable computing a procedural image from 4096 byte of code and data. The terrain was rendered by using raymarching of a signed noise field. I implemented some volumetric lighting.
Pixel Coding
256b demo, 2002
A 240 bytes realtime rendering demo for MsDOS. It's a tunnel effect with a procedural texture. It's so small that it can be "coded" in Photoshop by placing colorizing pixels in the right order and saving the picture into an executable file.
Video: youtube
256b demo, 2002
A 240 bytes realtime rendering demo for MsDOS. It's a tunnel effect with a procedural texture. It's so small that it can be "coded" in Photoshop by placing colorizing pixels in the right order and saving the picture into an executable file.
Video: youtube
Paradise is Coming
40kb demo, 2002
A 40 kilobyte executable containing all the code and data needed to play a realtime rendered OpenGL demo (before shaders existed), with some procedural terrain. It got the 1st position at the BCN Party.
Download: iquilezles, pouet
Video: youtube
40kb demo, 2002
A 40 kilobyte executable containing all the code and data needed to play a realtime rendered OpenGL demo (before shaders existed), with some procedural terrain. It got the 1st position at the BCN Party.
Download: iquilezles, pouet
Video: youtube
Gravity of Love
demo, 2002
Note: I ripped the graphics from another demo! A realtime rendering for MsDos doing software rendering of some effects, and it run on a 486 computer (predecesor to the Pentium computers). Made for my girlfriend. It contains comercial music of Enigma.
demo, 2002
Note: I ripped the graphics from another demo! A realtime rendering for MsDos doing software rendering of some effects, and it run on a 486 computer (predecesor to the Pentium computers). Made for my girlfriend. It contains comercial music of Enigma.
Life
64kb demo, 2001
A 64 kilobyte executable for MsDos and Windows, doing some realtime rendering of simple meshes, wich were compressed. I wrote the music for it. It got 1st position at BCN Party 2002 (Barcelona)
Download: iquilezles, pouet
64kb demo, 2001
A 64 kilobyte executable for MsDos and Windows, doing some realtime rendering of simple meshes, wich were compressed. I wrote the music for it. It got 1st position at BCN Party 2002 (Barcelona)
Download: iquilezles, pouet
Kindergarden
4kb demo, 2001
A 4096 bytes demo featuring software rendering raytracing of conic sections for single core Pentium computers, with some procedural texturing. It got 1st position at Euskal Party 2001.
Download: iquilezles, pouet
Source code: madethisthing
4kb demo, 2001
A 4096 bytes demo featuring software rendering raytracing of conic sections for single core Pentium computers, with some procedural texturing. It got 1st position at Euskal Party 2001.
Download: iquilezles, pouet
Source code: madethisthing
JSlide
4kb demo, 2001
A 4096 bytes executable demo showing software rendered Julia sets with orbit traps coloring algorithms. It got 1st position at Durango Party 2001.
Download: iquilezles, pouet
4kb demo, 2001
A 4096 bytes executable demo showing software rendered Julia sets with orbit traps coloring algorithms. It got 1st position at Durango Party 2001.
Download: iquilezles, pouet
Pigs
48kb demo, 2001
A 48 kilobyte executable for MsDos doing some software rendering of funny compressed images and background effects. I made it with my friends, including super coder Geiger, but we never finished it. The fonts were procedural too.
48kb demo, 2001
A 48 kilobyte executable for MsDos doing some software rendering of funny compressed images and background effects. I made it with my friends, including super coder Geiger, but we never finished it. The fonts were procedural too.
Tfbaas
demo, 2000
A realtime rendering demo for MsDos, with software rendering of fractals, zoom effects, tunnels, etc. It features comercial music (Ayla), and stolen textures.
Download: iquilezles
demo, 2000
A realtime rendering demo for MsDos, with software rendering of fractals, zoom effects, tunnels, etc. It features comercial music (Ayla), and stolen textures.
Download: iquilezles
Fake 2
64kb demo, 2000
A 64 kb demo featuring software rendering, raytracing, procedural textures, demoscene. It got 1st position at Arroutada 8 demoparty.
Download: iquilezles, pouet
64kb demo, 2000
A 64 kb demo featuring software rendering, raytracing, procedural textures, demoscene. It got 1st position at Arroutada 8 demoparty.
Download: iquilezles, pouet
Rare 2
64kb demo, 2000
A 64 kilobyte executable featuring realtime software rendering in MsDos, procedural modeling, texturing and animation. It got 2nd position at the Xuntas Party 2000 demoaprty.
Download: iquilezles, pouet
64kb demo, 2000
A 64 kilobyte executable featuring realtime software rendering in MsDos, procedural modeling, texturing and animation. It got 2nd position at the Xuntas Party 2000 demoaprty.
Download: iquilezles, pouet
Xmas
64kb demo, 1999
A 64 kb demo showing off realtime rendering and some procedural meshes, made for MsDos, made with my friends.
Download: iquilezles, pouet
64kb demo, 1999
A 64 kb demo showing off realtime rendering and some procedural meshes, made for MsDos, made with my friends.
Download: iquilezles, pouet
Fake
64kb demo, 1999
A 64 kb demo showing some realtime software rendering for MsDos/Windows, procedural modeling, mesh generation, and procedural textures. It got the 1st position at the Arroutada 7 demoparty.
Download: iquilezles, pouet
64kb demo, 1999
A 64 kb demo showing some realtime software rendering for MsDos/Windows, procedural modeling, mesh generation, and procedural textures. It got the 1st position at the Arroutada 7 demoparty.
Download: iquilezles, pouet
Rare
64kb demo, 1999
A 64 kilobyte realtime software rendering demo for MsDos, featuring procedural modeling, textures and animation. It got the 1st position at Euskal Encounter 1999 (Bilbao, Spain)
Download: iquilezles, pouet
64kb demo, 1999
A 64 kilobyte realtime software rendering demo for MsDos, featuring procedural modeling, textures and animation. It got the 1st position at Euskal Encounter 1999 (Bilbao, Spain)
Download: iquilezles, pouet
Storm
demo, 1999
A realtime software rendering demo made for MsDos together with my friends. It got the 4th position at the Euskal Encounter 1999 demoparty.
Download: iquilezles, pouet
demo, 1999
A realtime software rendering demo made for MsDos together with my friends. It got the 4th position at the Euskal Encounter 1999 demoparty.
Download: iquilezles, pouet
Euskal 7 Invitation
demo, 1999
A realtime software rendering demo made for MsDos together with my friends.
Download: iquilezles, pouet
demo, 1999
A realtime software rendering demo made for MsDos together with my friends.
Download: iquilezles, pouet
C.Y.S.P
demo, 1998
A realtime software rendering demo made for MsDos together with my friends. It got the 1st position at the Arroutada 6 demoparty.
Download: iquilezles, pouet
demo, 1998
A realtime software rendering demo made for MsDos together with my friends. It got the 1st position at the Arroutada 6 demoparty.
Download: iquilezles, pouet
Weektro
64kb demo, 1998
A 64 kb demo, using software rendering of procedural meshes with a depth buffer, in MsDos. Got the 1st position at the Arroutada 6 demoparty.
Download: iquilezles, pouet
64kb demo, 1998
A 64 kb demo, using software rendering of procedural meshes with a depth buffer, in MsDos. Got the 1st position at the Arroutada 6 demoparty.
Download: iquilezles, pouet
Synthesis
demo, 1998
A realtime software rendering demo for MsDos that I made witih my friends. It got the 5th position at the Euskal Encounter demoparty.
Download: iquilezles, pouet
demo, 1998
A realtime software rendering demo for MsDos that I made witih my friends. It got the 5th position at the Euskal Encounter demoparty.
Download: iquilezles, pouet
Fractal Chaos
64kb demo, 1998
A 64 kb demo I made for MsDos showing software realtime rendering with a depth-buffer and smooth shading. It crashed half way through, in the big screen in front of a couple thousand people; and got the last position at the Euskal Encounter party.
Download: iquilezles, pouet
64kb demo, 1998
A 64 kb demo I made for MsDos showing software realtime rendering with a depth-buffer and smooth shading. It crashed half way through, in the big screen in front of a couple thousand people; and got the last position at the Euskal Encounter party.
Download: iquilezles, pouet
Nabla
demo, 1997
A software rendering demo I wrote for MsDos with a depth buffer and smooth shading! My first project writen in C.
Download: iquilezles
demo, 1997
A software rendering demo I wrote for MsDos with a depth buffer and smooth shading! My first project writen in C.
Download: iquilezles