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FRACTALNOW(1) Fractal generator FRACTALNOW(1)


fractalnow - Generate fractal images.


fractalnow [OPTIONS] -c <Config> [-x <Width>|-y <Height>] -o <Output>
fractalnow [OPTIONS] -f <Fractal> -r <Rendering> [-x <Width>|-y <Height>] -o <Output>


FractalNow is a command line tool that generates pictures of fractals as Portable PixMap (PPM) files.
It is multi-threaded and implements advanced algorithms and heuristics that make computation very fast compared to most existing free fractal generators.
See QFractalNow, a graphical tool to explore fractals.


Print help.
Quiet mode, only errors are displayed.
Verbose mode.
-j <NbThreads>
Specify number of threads (see help for default value).
-g <GradientFile>
Specify gradient file, overriding gradient from configuration/ rendering file.
-l <FloatType>
Specify float type:
single Single precision.
double Double precision.
ldouble Long double precision.
mp Multiple precision.
-L <MPPrecision>
Specify precision of Multiple Precision (MP) floats (see help for default value).
-a <AntiAliasingMethod>
Specify anti-aliasing method:
none By default.
blur Gaussian blur.
oversampling Oversampling.
adaptive Smart oversampling.
-s <AAMSize>
Specify size for anti-aliasing:
Radius for blur (values in [2.5, 4] are generally good).
Scale factor for oversampling ([3, 5] is good for a high quality image).
Scale factor for adaptive (integers between 3-5 are good for a high quality image).
-p <AAMThreshold>
Threshold for adaptive anti-aliasing (see help for default value).
-i <QuadSize>
Maximum size of quadrilaterals for linear interpolation.
Default is good for no visible loss of quality (see help for default value).
1 means no interpolation (all pixels are computed).
-t <Threshold>
Dissimilarity threshold for quad interpolation.
Default is good for no visible loss of quality (see help for default value).
A quadrilateral that shows too dissimilar values at its corners will be computed, as opposed to interpolated.


FractalNow was written by Marc Pegon <>.


FractalNow is licensed under the terms of the GNU Lesser General Public License, Version 3 or any later version published by the Free Software Foundation.


QFractalNow manual page.
Documentation files describing configuration, fractal, rendering and gradient files formats.
2012-07-11 FractalNow