marching
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Marching.js is a JavaScript library that compiles GLSL ray marchers.
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# Credits
[Chi Shen](http://shenchi.github.io) performed [initial development work on this project](https://github.com/shenchi/glsllab).
The project uses code from [Stack.gl ecosystem](http://stack.gl/), specifically:
- [glsl-raytrace](https://github.com/glslify/glsl-raytrace) by [Hugh Kennedy](https://github.com/hughsk).
- [glsl-sdf-normal](https://github.com/glslify/glsl-sdf-normal) by [Hugh Kennedy](https://github.com/hughsk).
- [glsl-camera-ray](https://github.com/glslify/glsl-camera-ray) by [Hugh Kennedy](https://github.com/hughsk).
- many geometric primitives from [glsl-sdf-primitives](https://github.com/marklundin/glsl-sdf-primitives) by [Mark Lundin](https://github.com/marklundin).
- Ambient occlusion and soft shadows are taken from the [glsl-sdf-ops package](https://github.com/marklundin/glsl-sdf-ops) by [Mark Lundin](https://github.com/marklundin).
The project takes a variety of operators from the exceptional [hg_sdf library](http://mercury.sexy/hg_sdf/) by the [Mercury demogroup](http://mercury.sexy/).
The defaut lighting scheme is adapted from [this demo](https://www.shadertoy.com/view/Xds3zN) by [Inigo Quilez](http://www.iquilezles.org). Many operators are also taken from his [excellent tutorial on SDFs](http://www.iquilezles.org/www/articles/distfunctions/distfunctions.htm).
The Mandelbulb primitive is taken from [this demo](https://www.shadertoy.com/view/ltfSWn) by [Inigo Quilez](http://www.iquilezles.org).
The Mandalay fractal is taken from [this demo](https://www.shadertoy.com/view/MdV3Wz) by Dave Hoskins.
The Julia fractal primitive is taken from [this demo](https://www.shadertoy.com/view/MsfGRr) by [Inigo Quilez](http://www.iquilezles.org).
The SuperFormula primitive is taken from [a repo](https://github.com/Softwave/glsl-superformula) by [JC Leyba](http://s0ftwave.com).
A [matrix data structure by Evan Wallace](https://github.com/evanw/lightgl.js/).
The Worley noise texture is taken from [a repo](https://github.com/Erkaman/glsl-worley) by [Eric Arnebäck](https://erkaman.github.io/).