From 7bf6246b44be7539a65cee3ee3a5b9232b3fc608 Mon Sep 17 00:00:00 2001 From: David Phillips <dbphillipsnz@gmail.com> Date: Sat, 6 Jun 2015 22:14:00 +1200 Subject: Added readme --- README.md | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 README.md diff --git a/README.md b/README.md new file mode 100644 index 0000000..53dc179 --- /dev/null +++ b/README.md @@ -0,0 +1,27 @@ +Mandelbrot +========== +This is a tiny program which will output a very basic raw format square image of a mandelbrot set. + +Just invoke it like + + ./mbrot-gen 1000 100 2 > image.raw + +For a 1000x1000 point image of a mandelbrot set using 100 iterations and an exponent of 2. +For the cliché set you'll want to keep the exponent at 2. + +You'll then want something to turn this megabyte monster into something pretty you can look at. +I've got some pieces of software for viewing live and also processing into PNG tiles, but they need a tidy up before putting on GitHub. + +Each point is represented in the output format as a byte. +This byte's value ranges in proportion with the number of iterations it took to decide if the point is in the set or not. +In the aboove, a value of 255 means it took 100 iterations, a value of 127 means 50 iterations, and so on. + + +Notes +----- + +1. This has your CPU over a barrel. + It spawns twice 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. + + -- cgit v1.1