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Romanesco

A simple GPU Julia sets and Mandelbrot set plotter

This program is a simple GPU, double-floating-point precision plotter for Julia sets and Mandlebrot sets. It is made with OpenGL compute-shaders and it is written in C.

Features

  • Julia sets with live constant changing
  • Mandlebrot set
  • Live Panning and zooming
  • Integer exponents
  • Real exponents (Moivre's formula)
  • Image exporting
  • Uses -Wall and -Werror
  • Works on both linux and windows

Todo (Not ordered)

  • Multiple coloring methods
  • Multiple coloring palettes
  • Visualize the different values taken by the serie
  • Buddhabrot fractal (probably another backend)
  • Burning ship fractal
  • Newton's fractals (another backend)
  • Save locations
  • Add some sort of configuration (Mostly to configure OpenGL workgroup sizes)

Dependencies

  • OpenGL 3.3
  • SDL2 for window and GL context
  • GLEW for OpenGL
  • Nuklear for UI
  • Posix for file I/O
  • tinydir.h (included) to scan directories
  • stb_image.h (included) to read images
  • stb_include.h (included) to use include directive in GLSL

Building

For Linux (and MacOSX but not tested):

Install SDL2 and glew through your package manager examble on Debian based systems:
# apt install libsdl2-dev libglew-dev
(Package name differ depending on distro)\

$ premake5 gmake2
$ make
$ ./romanesco

For Windows:

You must use Visual Studio / Visual C compiler : The necessary dependencies (include, libs and dlls) are included in the windows folder.

/!\ Current source generates alot of warnings on windows.

> premake5 vs2019 (Or the installed vs version)
> msbuild
The exe should the be built. Don't forget to include the SDL2.dll file next to the executable. The dll is included in windows\SDL2\lib\x64\SDL2.dll.