Symposium on Geometry Processing 2007.
Highly adaptable watertight surface from an unconstrained octree.
Abstract: This paper presents a novel algorithm for generating a watertight level-set from an octree. We show that the level-set can be efficiently extracted regardless of the topology of the octree or the values assigned to the vertices. The key idea behind our approach is the definition of a set of binary edge-trees derived from the octree's topology. We show that the edge-trees can be used define the positions of the isovalue-crossings in a consistent fashion and to resolve inconsistencies that may arise when a single edge has multiple isovalue-crossings. Using the edge-trees, we show that a provably watertight mesh can be extracted from the octree without necessitating the refinement of nodes or modification of their values.
Hindsight: No hindsights yet.
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