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Real-Time Particle Based Virtual Sculpturing

Virtual sculpturing in real-time is still an open research field that spreads from realistic physical based simulation to simplified approaches. Volumetric modeling techniques are more intuitive than surface based ones but suffer the excessive memory and computing time consumption, as the complexity is often very high. In this paper, we propose a particle based modeling approach that supports the interactive sculpting of deformable materials using rigid spheres. Our modeling system can be easily used by inexperienced users to interactively deform virtual materials with realistic physical properties on a standard desktop PC. The rendering is achieved visualizing the isosurface generated by the particles. The extraction of this isosurface is achieved using an optimized Marching Cubes (MC) implementation. Results on performance are interesting and the ‘feeling’ of manipulating a real deformable material is definitively valid.