Proceedings of the 6th Eurographics Symposium on Sketch-Based Interfaces and Modeling 2009
DOI: 10.1145/1572741.1572750
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Editing level-set models with sketched curves

Abstract: Level set models are deformable implicit surfaces where the deformation is controlled by a speed function in the level set partial differential equation (PDE). These models are widely used in computer graphics applications due to their implicit definition, low-level volumetric representation and the powerful numerical techniques used to produce the PDE-based deformation. We present a set of interactive sketch-based level-set surface editing operators. These operators allow a user to sketch curves above or on a… Show more

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Cited by 6 publications
(3 citation statements)
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References 35 publications
(23 reference statements)
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“…Implicit surfaces are usually taken as modelling primitives, as they can deal with complex topology changes. Many systems such as BlobTrees, radial basis function‐based, and level set‐based are all based on implicit surfaces. Implicit surface‐based methods can generate smooth models with complex topology more easily than those based on explicit surfaces .…”
Section: Related Workmentioning
confidence: 99%
“…Implicit surfaces are usually taken as modelling primitives, as they can deal with complex topology changes. Many systems such as BlobTrees, radial basis function‐based, and level set‐based are all based on implicit surfaces. Implicit surface‐based methods can generate smooth models with complex topology more easily than those based on explicit surfaces .…”
Section: Related Workmentioning
confidence: 99%
“…During interactive sculpting this cost is amortized over many frames, but in the implicit context each evaluation of the scalar field would require a prohibitively expensive reverse-integration along the entire path. A recent curve-based sculpting technique for level-set models [9] has similar limitations, and also involves a temporal component in the form of per-frame partial differential equation (PDE) evolution. In this case the result is not strictly a spatial deformation and cannot be directly applied to functional implicit models.…”
Section: Related Workmentioning
confidence: 99%
“…solving the unwanted blending problem ) has been a major area of research in implicit modelling and animation. While efficient solutions have been proposed for level set implicit surfaces [MBWB02, BMPB08, EGB09], no fully satisfactory technique has been developped for functionally‐based implicit surfaces. Up to now, two families of solutions arose: The first ones used a blending graph to define pairs of primitives allowed to blend, i.e.…”
Section: Introductionmentioning
confidence: 99%