Fractal Renderer

This is a program used to render fractals using a RON parameter file. It also has a simple GUI for easier navigation.

It features anti-aliasing and the GUI allows for progressive sampling by manually taking as many samples as necessary to smoothen the image.

Table of contents

• Fractal Renderer
• How to install
• How to use
• Preset renders
• Ideas
• Notes

How to install

If you have cargo installed:

cargo install fractal_rndr

You can also download executables for older versions from github.

How to use

You can either directly run the executable or use the command line:

fractal_rndr path/to/param_file.ron path/to/output_image.png

[!NOTE] Supported image formats are png and jpg (the extension is used to guess the format)

This is what the app looks like:

Enjoy !

Preset renders

See this repository.

Ideas

• use wgpu to perform calculations ? see this
• use opencl to perform calculations ? see this
• Make a new program using this one that is a purely gui program with progressive rendering
  • Progressive rendering ? Save a global raw_image and sample continuously from another thread to improve image quality
    • How to sample ? Use Low or Medium for first pass then do other passes with High (as the number of passes increases, the value of each pixel gets more and more accurate)
    • Careful: The average between new passes and the current values must be weighted: (sampling_point_count_from_start * stored_value + sampling_point_count_for_current_pass * new_value) / (sampling_point_count_from_start + sampling_point_count_for_current_pass)

Notes

• To create a video from the frames:

  ffmpeg -framerate <fps> -pattern_type glob -i 'frames/*.png' -c:v libx264 -pix_fmt yuv420p video.mp4