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Navigation in virtual 3D environments, especially those with multiscale features, is still a problem for many users. In this regard, a good design of the navigation interfaces is critical to ensure that the users navigate with the best possible efficiency and comfort. In this paper, we present improvements made to two well-known interfaces: fly, including support to collision treatment and automatic navigation speed adjustment in relation to scale, and examine, with automatic pivot point. Suchdoi:10.1145/1982185.1982454 dblp:conf/sac/TrindadeR11 fatcat:cwxucmobwnc5hczbvpwgmd74qu