| Introduction | Previous Works | Implementation/Results | Conclusion | Impressum | References |
Karl Sims (1994):
Karl Sims was one of the first who used a 3-D world of simulated physics, i.e. he included physics like gravity, friction, collision detecting, collision responding and fluid effects in his simulation. In our simulations with MorphEngine, physics are also included, but not as many as in Sims' simulation e.g. no fluid effects.
Sims' creatures evolve a morphology and a neural control. Sims let evolution do the work (designing the creature and its specification/architecture). Compared to our project, Sims has the advantage that his creatures can also change the shape of their body, whereas in our project we have to desing the creature with MeCreator first and let it evolve with MorphEnginge thereafter.
Sims sets tasks like swimming, walking or getting control over a cube and the creatures are competing against each other (Sims' creatures). The agents are selected after the truncation strategy which means selecting the fittest 20% of them; each individual produces offspring proportionally to its fitness. MorphEnginge instead chooses elitism as selection strategy - already described in the introduction.
During reproduction mutation and crossover might occur on offspring's genotypes. MorphEngine works with mutation only.
Further information, videos of creatures and more.
Below you see an example of a genotype and a phenotype of Sims' creatures.
