An essential technological problem of multimodal VEs is to design and develop object representation, simulation, and rendering strategies that support visual, haptic, and auditory interactions with the VE in actual time. First, a unified central illustration may be employed that captures all the geometric, surface, and bodily properties needed for physical simulation and rendering functions. In precept, methods such as finite element modeling might be used as the premise for representing these properties and for physical simulation and rendering functions.
With VE methods, we now have the flexibility to actually highlight the selected object. Most examples up to now have used three-dimensional extensions of two-dimensional highlighting methods, somewhat than merely doing what the term implies; applying particular lighting to the selected object. PC-based VE systems are a pure consequence of the widespread availability of PCs. PC-based techniques will provide the public with a taste of digital reality that can eventually result in demand for extra capable computational and graphics platforms. It is anticipated that, by 1996, methods similar to the entry-level Indy machines from Silicon Graphics should replace the PC-based platforms as the whole value of the PC system becomes similar to that of the Indy. Already there are signs … Read More
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