XEDGit / fract.ol

This project was made for learning purposes fully in C with a bare-bones graphical library and limited skills, it shows different types of fractals and implies some techniques like the smooth coloring

fract.ol

Project

This project was made for learning purposes fully in C with a bare-bones graphical library and limited skills, it shows different types of fractals and implies some techniques like the smooth coloring

Purposes

• Learn how to use structs in order to avoid global variables
• Learn how to work with complex equations in loops
• Practice to work with graphical libraries at a really low-level

Requirements

• gcc
• make
• MacOS 10.X or higher, not tested on earlier versions

Installation

Terminal

git clone [e-mail]:XEDGit/fract.ol.git
cd fract.ol/
make

Use

Run

  ./fractol <selected fractal> <julia values(optional, only for julia set)> <number of iterations> <additional settings(optional)>

selected fractal

You can choose between three different equations:

• Mandelbrot
• Julia
• Burning ship

To run the corresponding fractal use the initial letter of the equation

number of iterations

Play with this value to be able to zoom deeper, the higher is the value the slower is the program, but you can zoom really deep, a really high value could be 2000

additional settings(optional)

You can specify three types of additional settings without a specific order:

• Window size: type "X_SIZExY_SIZE", default is 1000x1000
• Color palette: specify 0 for a procedurally generated palette, 1 for a fixed one, default is 0
• Julia's step: defines the intensity of the WASD controls for Julia's set, default is 0.1

julia values(optional, only for julia set)

For rendering the Julia's set you have to specify the values to be used in the equation, specify two decimal (not integer) values

Examples

To run the Mandelbrot set with 500 iterations you have to write:

./fractol m 500

To run the Julia set:

./fractol j 0.1 -0.4 250

To run the Burning ship set:

./fractol b 1000

To run the Mandelbrot set with additional arguments:

./fractol m 500 1920x1080 1

To run the Mandelbrot set with a WASD step of 0.01:

./fractol m 500 0.01 1 1920x1080

Extra features

• Smooth coloring
• Color shifting (press ',' or '.' to shift the colors)
• Color shift reset (press 'p' to reset to initial state)
• Viewport reset (press 'r' to reset the zoom to the initial state)
• ONLY FOR JULIA SET Fractal shape manipulator (press 'w', 'a', 's' or 'd' to change the equation values)