Fractals/mightymandel

mightymandel is Mandelbrot set explorer made by Claude Heiland-Allen. Here one can find unofficial docs about it Features draws parameter plane of complex quadratic polynomial with boundary of Mandelbrot set License GPL3+ License GPL3+ perturbation techniquePerturbation glitches with series approximation. GPGPUGeneral-purpose computing on graphics processing units in wikipedia based on OpenGL 4 ( "my GPU is much faster than my CPU ") writen in C ( C99) with full src code availableGit repository multiprecision Plane description Claude Heiland-Allen[4] uses center and radius for the description of parameter plane. Radius is defined as "the difference in imaginary coordinate between the center and the top of the axis-aligned view rectangle". So plane is described by 3 numbers: center_re center_im radius where center = center_re + center_im * i Installation Requirements opengl for GPGPU version 4.1 (supports 3.3 as fallback without perturbation, limiting zoom depth dramatically) libraries : gl, glew,The OpenGL Extension Wrangler Library glfw3,OpenGl in C multiprecision ( library MPFRThe GNU MPFR Library) rt librt library programs: gcc make bash sed git pkg-config ts ( for test suite, see /src/test.sh ) Use in Ubunty : sudo apt-get install moreutils doxygen ( for doc) for video : AVConv - Automatic video converter FFmpeg One can check it with ldd : ldd -d -v ./src/mightymandel or look at /src/Makefile : -lGLEW -lGL -lrt -lmpfr -lm Debian packages On Debian Jessie, this suffices to install everything you need to compile:README for mightymandel sudo aptitude install \ build-essential \ git \ libglew-dev \ libglfw3-dev \ libmpfr-dev \ pkg-config Getting the source First time : git clone https://gitorious.org/maximus/mightymandel.git To update src run ( from program directory): git pull Then one can build the program. Remote repository git remote show origin the result : * remote origin Fetch URL: https://gitorious.org/maximus/mightymandel.git Push URL: https://gitorious.org/maximus/mightymandel.git HEAD branch: master Remote branch: master tracked Local branch configured for 'git pull': master merges with remote master Local ref configured for 'git push': master pushes to master (fast-forwardable) Version git describe Example output : v14-164-g9cd6fc7 Building Got to the mightymandel directory : cd ~/mightymandel and make : make -C src clean make -C src or, in case of problems :Fractal Forum - mightymandel make -C src EXTRA_LINK_FLAGS="-lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -lpthread -lXi" or edit Makefile and add extra flags, but then you will have problems after updating source. One can also build and run test suite Errors glfw Package glfw3 was not found in the pkg-config search path. Download and install glfw:and Ubuntu cd glfw-3.0.4 hash -r cmake -G "Unix Makefiles" make sudo make install Ubuntu 14.10 ( utopic ) has packages for glfw3Package: glfw3 (3.0.4-1) [universe] ( but CUDA packages are only for LTS version of Ubuntu , it is now 13.04) Next error : LINK mightymandel /usr/bin/ld: /usr/local/lib/libglfw3.a(x11_clipboard.c.o): undefined reference to symbol 'XConvertSelection' /usr/lib/x86_64-linux-gnu/libX11.so.6: error adding symbols: DSO missing from command line add to makefile ( on Ubuntu 13.10 64-bit) : -lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -lpthread -lXi \ check file ./mightymandel ./mightymandel: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x2a424b6dcad8de5e29e3f0b17524dbf34de18aaa, not stripped Running Go to the program directory and : ./src/mightymandel Version ./src/mightymandel—version example result : v16-10-gd079448+2015-01-20-16-40-55 Examples mm One can run ( from program directory) example parameter file fp32.mm using : ./src/mightymandel ./examples/mm/fp32.mm par Now mightymandel does not load native fractint par files. They need to be transformed to ppar files. How to preprocess Fractint par file ? Split txt file ( with parameters for many images ) into single image files ( with 7 lines of original file) splite line with many parameters into lines with one parameter per line ( replace space into newline) add ppar extension :how-to-add-an-extension-to-all-files-via-terminal remove all par files without : "type=mandel" ( mightymandel can draw only mandelbrot set ) "corners=" or "center-mag=" #!/usr/bin/env bash # chmod +x s.sh # ./s.sh for f in *.txt; do echo " found "$f " file "; #split -l 7 $f; awk '/{/{n++}{print > n".p" }' $f echo $f "- split when { is found and add p extension " ; rm $f; echo " input file " $f " is removed " ; done for f in *.p; do echo " in "$f " file replace space with newline and add ppar extension" # tr '{}' '()' < infile > outfile tr ' ' '\n' < $f >$f"par" rm $f; done for f in *.ppar; do echo "remove blank= empty lines" sed -i '/^$/d' $f done Comment : "pre-processing script removes the input without asking, which is a bit rude! And it doesn't support merging lines ending in \ " Claude Here is split2ppar.sh by Claude #!/bin/bash tmp="$(mktemp -d --tmpdir=. split2ppar.XXXXXXXX)" for file in "${@}" do name="$(basename "${file}")" file="$(readlink -e "${file}")" pushd "${tmp}" awk "/{/{n++}{print > \"${name}_\"n\".par\" }" "${file}" popd done pushd "${tmp}" for file in *.par do ident="$(head -n 1 "${file}" | sed 's/ .*$//')" mv "${file}" "${ident}.par" # rename input cat < "${ident}.par" | # read input sed 's/;.*$//' | # delete ; comments tr '\n' ' ' | # join on one line with spaces sed 's/\\ *//g' | # merge lines ended with '\' tr -s ' ' | # compress multiple ' ' to single ' ' sed 's/^.*{\([^}]*\)}.*$/\1/' | # extract the part between { } tr ' ' '\n' | # split into separate lines cat > "${ident}.ppar" # write output done popd ls "${tmp}/"* ppar Preprocessed par files are in /examples/ppar directory. Use : ./src/mightymandel ./examples/ppar/1_02.ppar test One can run test suite : make -C src test EXTRA_LINK_FLAGS="-lGL -lGLU -lglfw3 -lX11 -lXxf86vm -lXrandr -lpthread -lXi" Example output : real 56m25.351s user 33m50.995s sys 21m38.976s See also : content of csv file int test directory images in test directory Benchmark See file BENCHMARKS in program directory for more details Check hardware type and version of the Central processing unit ( CPU ) CPU in wikipedia) type and version of the graphics processing unit ( GPU )GPU in wiki[edia version of the video cardVideo card in wiki device driverDevice driver in wikipedia ( DRV ) and which version of OpenGlOpenGl in wikipedia it supports Example output : cat /proc/cpuinfo | grep model\ name model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz model name : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 770] (rev a1) glxinfo | grep OpenGL\ version OpenGL version string: 4.3.0 NVIDIA 319.32 Run benchmark time ./src/mightymandel --verbose warn --one-shot --de --weight -1.5 --glitch --size "1280x720" examples/mm/fp32-large-minibrot.mm fp32-large-minibrot.mm,ok,fp32,322.402263,85.265842,14.734158,, real 0m0.643s user 0m0.188s sys 0m0.236s Images Galleries : in commons there is a category : :commons:Category:Fractals created with Mightymandel official online doc galleryonline official doc gallery comment To extract comment from ppm file :stackexchange question : How to extract comment from ppm file? identify -format "%c" 1.ppm or head -n 2 1.ppm | tail -n 1 example output : mightymandel -1.8605739600158748e+00 + -9.3437424499999996e-07 i @ 3.5884749956982262e-09 and from png file : extract k2000.png colors white = exterior of Mandelbrot set black = boundary of Mandebot set ( using DEM ) red = glitches yellow yellow = RGB(255,178,0) = known interior of Mandelbrot set blue = uncalculated Documentation official onlineofficial online doc How to make offline doc with doxygen ? How to contribute ? git checkout master git pull # get up to date git checkout -b new-feature-42 # create a branch for your new feature # make your changes, check that they compile and run ok git add your-changed-files git commit # write a description of your changes git format-patch master # save your changes to file(s) If path file was not created try : git format-patch origin/master # https://eothred.wordpress.com/2011/07/02/git-and-patches/ then email the .patch files to Claude References Category:OpenGL Programming