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Terrain decimation through Quadtree Morphing

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2 Author(s)
Cline, D. ; Sterling Wentworth Corp., Salt Lake City, UT, USA ; Egbert, P.K.

We present a new terrain decimation technique called a Quadtree Morph, or Q-morph. The new approach eliminates the usual popping artifacts associated with polygon reduction, replacing them with less objectionable smooth morphing. We show that Q-morphing is fast enough to create a view-dependent terrain model for each frame in an interactive environment. In contrast to most Geomorph algorithms, Q-morphing does not use a time step to interpolate between geometric configurations. Instead, the geometry motion in a Q-morph is based solely on the position of the viewer

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Visualization and Computer Graphics, IEEE Transactions on  (Volume:7 ,  Issue: 1 )