Abstract
AbstractIn this paper, we propose methodology and algorithms to generate realistic cuts on heterogeneous deformable object models. A three-dimensional node snapping algorithm is presented to modify the topology of deformable models, without adding new elements. Smooth cut is generated by duplicating and displacing mass points that have been snapped along the cutting path. Several sets of triangles representing different soft tissues are generated along the new cut to present the internal structures and material properties of heterogeneous deformable objects. A haptic device is integrated into cutting simulation system as a cutting tool. The proposed cutting techniques can be used in surgical simulation or other virtual simulations involving topological modification of heterogeneous soft materials to enhance the fidelity and realism.
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