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- Using the Cybertation engine:
-
- Opening files
- CybertationÆs images are kept in documents which can be opened, closed, and saved
- just like ordinary documents. Each document contains a population. To start evolving
- your own 3-D images, open the æpopsÆ directory and choose a parent population.
- Those kept in the æevolved popsÆ directory have already evolved through many
- generations, and some have achieved great complexity.
-
- Selection
- You, the user, decides which genes survive into the next generation. Cybertation
- invites your aesthetic sense to perform the function of natural selection. Select the
- image(s) - or æcreaturesÆ - whose genes you wish to survive by clicking on them. The
- image(s) will then be bounded by a red or pink box. De-select them by clicking on
- them again.
-
- The next generation
- New generations are created by either mutating or breeding the creature(s) you select.
- There are four operators which perform these functions: mutate, species-mutate, breed,
- and species-breed. Click on one of these to create the next generation. The fewer
- creatures you select, the stronger the evolutionary pressure.
-
- The four operators
- Evolution proceeds through change at the genetic level. In nature, this occurs either
- through mutation or through sex. So too in Cybertation. Both the ordinary mutate
- and breed operators mirror these natural processes. They mutate, or breed, the
- creatureÆs genetic descriptions. But the hyper operators provide Cybertation with
- another dimension. They can achieve effects far more drastic than nature allows by
- mixing genes across species.
-
- Mutation rate
- The amount of change between generations can be controlled by adjusting the evo-rate
- found under the æViewÆ menu. Like the natural world, however, most mutations are
- damaging. If memory allows, keep populations of nine or more to avoid disappointing
- results.
-
- Memory requirements
- Evolving beautiful and complex creatures takes time and patience. As children of the
- computer, the populations are memory hungry and processor intensive. The more
- complex they become, the more they demand. If things slow down, turn off all other
- applications. Close as many windows as possible, and if things are still bad, reduce the
- size of the population you are using with the cut feature. The complexity of
- populations can also be adjusted from Options under the æViewÆ menu. Cybertation
- should always be run with ævirtual memoryÆ on.
-
- Options
- Cybertation makes heavy demands of your system because it performs three tasks: it
- generates genetic code, it creates models from the resulting code, and renders the
- models. Options provides you with some control over these tasks. By choosing
- æRendering by stagesÆ over æContinuous renderingÆ you reduce the time spent on
- rendering, and so speed up the creation of the model. It wonÆt be as exciting to watch,
- but it will be faster. You can also cut short - and so simplify - the development of the
- models by choosing æSimple modelsÆ over æComplex modelsÆ.
-
- Because Cybertation can make such large demands on your system, it can sometimes
- become unresponsive. By choosing æLow system loadÆ you reduce the time your
- system spends on Cybertation and so free up your computer. Cybertation, however,
- will run more slowly.
-
- Rendering
- The æcreaturesÆ you create live in 3-D space. They can be rotated by dragging them to
- the left or right, up or down. Rendering options are under the file menu. Flat shading,
- the default option, combines speed with reasonable quality. Goraund and phong
- shading can produce spectacular results, but populations must often be evolved to suit
- these styles of rendering.
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