Luciano Copello Ost,  Leandro Soares Indrusiak,  Ricardo Augusto da Luz Reis. 

This document introduces the use of the Virtual Reality Modeling Language as a way to create dynamic models of integrated circuits. Usinvg VRML, the circuit can be viewed in three dimensions and its behavior can also be modeled through color changes, simulating the voltage switching.

http://www.lbd.dcc.ufmg.br/colecoes/wrv/1999/Dynamic3DModelsIntegratedCircuits.pdf

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