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Description:
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This dissertation presents a robust method of modeling objects and forces for computer animation . Within
this method objects and forces are represented as particles . As in most modeling systems , the movement of
objects is driven by physically based forces . The usage of particles , however , allows more artistically
motivated behavior to be achieved and also allows the modeling of heterogeneous objects and objects in
different state phases : solid , liquid or gas . By using invisible particles to propagate forces through the
modeling environment complex behavior is achieved through the interaction of relatively simple
components . In sum , 'macroscopic' behavior emerges from 'microscopic' modeling .
We present a newly developed modeling framework expanding on related work . This framework allows
objects and forces to be modeled using particle representations and provides the details on how objects are
created , how they interact , and how they may be displayed . We present examples to demonstrate the
viability and robustness of the developed method of modeling . They illustrate the breaking and fracturing
of solids , the interaction of objects in different phase states , and the achievement of a reasonable balance
between artistic and physically based behaviors . |