biogenesis - Biogenesis, an artificial life program focused on evolution
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 generation.
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
: 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
* 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
* 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
Written by Joan Queralt Molina <email@example.com>.
This manual page was originally written by Miriam Ruiz
<firstname.lastname@example.org> 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 even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
You can find more information about Biogenesis and a full user manual on its