MaciejSzybiak / mandelbrot-set

Mandelbrot set image generator.

Mandelbrot set

This console app can be used to generate pictures of the Mandelbrot set. It uses the escape time algorithm which is executed in multiple threads for faster image generation.

Command line options

  --output                 The name of the output image. [default: mandelbrot]
  --height                 The height of the image in pixels. [default: 1000]
  --width                  The width of the image in pixels. [default: 1000]
  --scale                  The image scale. Values higher than 1 will zoom in the image. [default: 1]
  --max-iter               Maximum iteration count for the escape time algorithm. [default: 100]
  --xoffset                Image x offset from the center of the complex plane. [default: 0,5]
  --yoffset                Image y offset from the center of the complex plane. [default: 0]
  --threads                The suggested worker threads count. [default: 8]
  --benchmark              Runs the built-in benchmark.
  --verbose                Set more detailed output.
  --version                Show version information
  -?, -h, --help           Show help and usage information

Example pictures

• Generated with default settings

• Generated with --xoffset 1.25 --yoffset 0.05 --scale 200 settings

• Generated with --xoffset 1 --max-iter 25 --scale 2 settings

Benchmark

The built-in benchmark can be used to measure generation speed for various thread counts. Use the --benchmark option to launch it. The --threads option is not available in this mode.

Example benchmark output:

Benchmarking...

Threads |  Average duration
----------------------------
  4096  |       425ms
  2048  |       339ms
  1024  |       361ms
  512   |       340ms
  256   |       325ms
  128   |       361ms
  64    |       481ms
  32    |       547ms
  24    |       547ms
  16    |       585ms
  12    |       548ms
  8     |       557ms
  4     |       731ms
  2     |       1035ms
  1     |       1857ms