(published in: Artificial Life IV Proceedings , 1994, MIT Press)


Explorations in the Emergence of
Morphology and Locomotion Behavior
in Animated Characters


Jeffrey Ventrella

Visible Language Workshop
MIT Media Laboratory
20 Ames Street, Cambridge, MA 02139


Abstract

This paper presents an animation system developed for the exploration of emergent morphology and locomotion behavior in articulated 3D figures. A genetic algorithm is used in this system for evolving populations of these figures towards improved locomotion and realistic positioning of the head. Qualities reminiscent of some familiar animals are shown to emerge. This work stems originally from research in designing tools for the art of character animation - as such, personality and humor are noted as qualities which may also emerge. An interactive evolution overlay to automatic evolution is supplied by a separate tool which allows a viewer to affect the course of evolution for these purposes. Of interest in this paper are issues in the design methodologies involved in creating genotype-phenotype representations for biomorphs with "evolvability".



1 Introduction

2 Disney Meets Darwin

3 Physics

4 The Structure of the Animat

5 The Head

6 Motor Control

7 Evolution

8 Results

9 Interactive Evolution Overlay

10 Genotype-Phenotype Design

11 Conclusion