Make VE more realistic. Ease of experiencing the Virtual World through wider range of our senses. Huge amount of additional calculation and processing needed to be done. Real-Time mapping of a user s posture with the avatar. Real-Time mapping of the user s avatar with other avatars in the network.
All positions have to be updated simultaneously.
Therefore the modelers and programmers often have to sacrifice alluring graphics design to maintain acceptable frame rates. However, there are some clever and important solutions to this. Efficient models can be made by manipulating some construction procedures, and yet get a higher realistic avatar. So can give up unnecessary detail of graphics. Efficient, fast algorithms.