Fuzzy and soft objects

  • Nadia Magnenat-Thalmann
  • Daniel Thalmann
Part of the Computer Science Workbench book series (WORKBENCH)


In the real world, many objects do not have smooth, well-defined, and shiny surfaces. Their shapes are irregular and ill-defined and may change with time. These objects are called fuzzy objects by Reeves (1983). Fuzzy objects can of course be represented by geometric primitives. For example, Schachter (1983) describes the simulation of cumulus cloud layers by a concatenation of cloud groups, each consisting of about 75 sun-shaded ellipsoids confined to a circular envelope. Schachter also shows how smoke trails can be simulated by strings of long, thin, translucent ellipsoids. The results, however, are quite unrealistic, although they are useful especially in the case of flight simulators.


Cellular Automaton Particle System Fuzzy Object Point Light Source State Transition Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Tokyo 1987

Authors and Affiliations

  • Nadia Magnenat-Thalmann
    • 1
  • Daniel Thalmann
    • 2
  1. 1.Hautes Etudes CommercialesUniversité de MontréalMontréalCanada
  2. 2.Département d’Informatique et de Recherche OpérationnelleUniversité de MontréalMontréalCanada

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