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Article Abstract
Simulation speed is crucial for virtual reality simulators involving real-time interactive cutting of deformable objects, such as surgical simulators. Previous efforts to accelerate these simulations resulted in significant speed increases during non-cutting periods, but only moderate ones during cutting periods. This paper aims to further increase the latter. Three novel methods are proposed: (1) GPU-based update of mass and stiffness matrices of composite finite elements. (2) GPU-based collision processing between cutting tools and deformable objects. (3) Redesigned CPU-GPU synchronization mechanisms combined with GPU acceleration for the update of the surface mesh. Simulation tests, including a complex hepatectomy simulation, are performed. Results show that our methods increase the simulation speed during cutting periods by 40.4% to 56.5.
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| http://dx.doi.org/10.1109/MCG.2025.3538985 | DOI Listing |
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