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| -rw-r--r-- | README.md | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -2,18 +2,21 @@ Fractal Gen ========== This is a tiny program which will output a binary [PGM](https://wikipedia.org/wiki/Netpbm_format#PGM_example) format square image of a mandelbrot or burning ship set. -Just invoke it like - ./mbrot-gen 1000 100 2 > image.pgm +Syntax +------ -For a 1000x1000 point image of a mandelbrot set using 100 iterations and an exponent of 2. + ./mbrot-gen <size> <max_iterations> <power> [threads] > output.pgm + +You might then want to consider using a tool such as ImageMagick to then convert the (large) output file into something more sane like a PNG. For the cliché set you'll want to keep the exponent at 2. +For more info on the exponent, read through [Wikipedia's fine article](http://wikipedia.org/wiki/Mandelbrot_set). Notes ----- -1. This has your CPU over a barrel. +1. By default, this has your CPU over a barrel. It spawns as many threads as you have cores, so have fun with that. - I'm looking at adding an option to override the number of threads. + You can specify the number of threads you want it to (see syntax). 2. PGMs are grayscale, so you might want to tint it or apply a pallete of sort. |