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Fascinated by a stunning variety of corals and fishes or mysterious wrecks more and more people are attracted by snorkeling and diving adventures. Virtual Reality scenarios like the virtual oceanarium [Froehlich 2000] try to satisfy this interest by allowing for discovery of underwater worlds in a riskfree and comfortable way, but a realistic feeling of diving is never achieved by virtual submarine worlds.
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Blum et al. (2009) studied this question.
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