BIOGENESIS(1)                      Biogenesis                      BIOGENESIS(1)

       biogenesis - Biogenesis, an artificial life program focused on evolution

       biogenesis [RANDOM_SEED]

       This program imitates the evolutionary processes that happens on
       unicellular organism populations in nature. It has been tried to create
       an example of the elemental bacterial processes, simplifying them a lot
       and presenting them in a visual and comprehensible manner. Although it is
       not scientifically exact, regular mechanisms on bacterial evolution and
       life can be observed and it can be interesting as a didactic
       approximation to concepts like mutation, evolution or photosynthesis. It
       is also a good entertainment.

       The organisms that will populate this world are not representations of
       natural unicellular organisms, but an abstraction has been used to be
       able to look more clearly at their virtual life. These organisms are
       formed by segments of different colors and lengths. The organism's
       segments color and length establish its properties, so that we can know
       what can an organism do only by looking at it on the screen. Moreover,
       these segments' configuration is a representation in the world of its
       genetic code, which its descendants will inherit in an identical form,
       with the exception of random mutations that can happen in each

       Organisms that obtain beneficial mutations will be the most successful
       ones, on the reproductive point of view, and will create a large number
       of descendants that will propagate its genes and its mutation in the
       future. However, those that suffer from a less appropriate mutation will
       not take a long time to die without being able to extend their species'
       lives longer than their own lives.

              This number determines the sequence of the random numbers that
              will be generated. This way it is possible to recreate several
              times the same scenario if the same number is introduced.

       This program has a high CPU consumption. You need to set a few parameters
       in order to adapt it to your hardware.

       These are the parameters that you should configure. Remember that you can
       do this by selecting the Parameters option under the World menu.

        * OpenGL: The use of the OpenGL libraries greatly increases program's
       speed. This option is deselected by default because it doesn't work on
       all hardware and drivers combinations. You should try to enable it and
       restart the program. If it crashes or doesn't work, OpenGL will be
       disabled next time you run it.

        * Disable fbobject: Due to a bug in some graphic drivers, it may be
       necessary to activate this option for the OpenGL to work. If the first
       time that you try to activate them they don't work, try to activate them
       with this option.

        * Time per frame: This parameter controls the speed that the program
       will try to reach. If it is consuming a lot of CPU you should raise it,
       and if it is not and you want the process to execute faster, you should
       lower it.

        * Initial carbon dioxide: The CO2 is the limiting factor to life
       expansion. More CO2 means more organisms will populate the world, and
       more CPU needed to calculate their moves and draw them. If you change
       this parameter, it may be a good idea to change the world size
       accordingly to keep the same CO2 concentration.

       Written by Joan Queralt Molina <>.
       This manual page was originally written by Miriam Ruiz
       <> and Joan Queralt.

       Copyright © 2006-2011 Joan Queralt Molina <>
       This is Free Software; this software is licensed under the GPL version 2,
       as published by the Free Software Foundation.  There is NO warranty; not

       You can find more information about Biogenesis and a full user manual on
       its homepage:

                                Fri, 18 Feb 2011                   BIOGENESIS(1)