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- W3130057797 abstract "We present octree-embedded BSPs, a volumetric mesh data structure suited for performing a sequence of Boolean operations (iterated CSG) efficiently. At its core, our data structure leverages a plane-based geometry representation and integer arithmetics to guarantee unconditionally robust operations. These typically present considerable performance challenges which we overcome by using custom-tailored fixed-precision operations and an efficient algorithm for cutting a convex mesh against a plane. Consequently, BSP Booleans and mesh extraction are formulated in terms of mesh cutting. The octree is used as a global acceleration structure to keep modifications local and bound the BSP complexity. With our optimizations, we can perform up to 2.5 million mesh-plane cuts per second on a single core, which creates roughly 40-50 million output BSP nodes for CSG. We demonstrate our system in two iterated CSG settings: sweep volumes and a milling simulation." @default.
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- W3130057797 date "2021-06-01" @default.
- W3130057797 modified "2023-09-24" @default.
- W3130057797 title "Fast Exact Booleans for Iterated CSG using Octree-Embedded BSPs" @default.
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- W3130057797 doi "https://doi.org/10.1016/j.cad.2021.103015" @default.
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