Mixing Triangle Meshes and Implicit Surfaces in Character Animation

Leclercq, Antoine; Akkouche, Samir; Galin, Éric

doi:10.1007/978-3-7091-6240-8_4

Cited by 13 publications

(10 citation statements)

References 12 publications

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“…In our technique, we use a projection of the vertices of the mesh onto the implicit surface approximation for each frame of this transitional stage. In a sense, this is similar to a problem described in [LAG01], where coarse mesh is deformed and smoothed using an underlying set of implicit primitives.…”

Section: Methods Outlinementioning

confidence: 99%

Controlled Metamorphosis Between Skeleton‐Driven Animated Polyhedral Meshes of Arbitrary Topologies

Kravtsov

Fryazinov

Adzhiev

et al. 2013

Computer Graphics Forum

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Section: Methods Outlinementioning

confidence: 99%

Controlled Metamorphosis Between Skeleton‐Driven Animated Polyhedral Meshes of Arbitrary Topologies

Kravtsov

Fryazinov

Adzhiev

et al. 2013

Computer Graphics Forum

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“…Metaballs [Shen and Thalmann 1995], polygon-based implicit primitives [Singh and Parent 1995], convolution surfaces [Van Overveld and Broek 1999] and ellipsoidal implicit primitives [Leclercq et al 2001] were used to animate skinned characters, with the ability in the last case to add organic details (muscles) to a coarse mesh representing the characters body. Closer to our work, implicit modeling has been used to improve skinning deformation [Bloomenthal 2002].…”

Section: Related Workmentioning

confidence: 99%

Implicit skinning

Vaillant

Barthe

Guennebaud³

et al. 2013

ACM Trans. Graph.

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a) (b) Linear blending (c) Our with contact (d) Our with bulge (e) Real finger Figure 1: (a) Real-time animation of the index finger of a hand model composed of 31750 vertices. Two poses are shown in each column: (b) standard smooth skinning with linear blending at 95 frames per second (fps), (c) our method which compensates the loss of volume on top of joints and models contact in the fold at 37 fps, (d) our method with an additional bulge mimicking tissues inflation at 35 fps, and (e) a picture of a real bent finger. AbstractGeometric skinning techniques, such as smooth blending or dualquaternions, are very popular in the industry for their high performances, but fail to mimic realistic deformations. Other methods make use of physical simulation or control volume to better capture the skin behavior, yet they cannot deliver real-time feedback. In this paper, we present the first purely geometric method handling skin contact effects and muscular bulges in real-time. The insight is to exploit the advanced composition mechanism of volumetric, implicit representations for correcting the results of geometric skinning techniques. The mesh is first approximated by a set of implicit surfaces. At each animation step, these surfaces are combined in real-time and used to adjust the position of mesh vertices, starting from their smooth skinning position. This deformation step is done without any loss of detail and seamlessly handles contacts between skin parts. As it acts as a post-process, our method fits well into the standard animation pipeline. Moreover, it requires no intensive computation step such as collision detection, and therefore provides real-time performances.

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“…Cluster outlining techniques avoid these problems. We propose a cluster outlining technique based on implicit metaball shapes 19,20 to allow consistent cluster visualization in the absence of cluster members. The minimum spanning tree skeleton obtained during clustering provides connectivity information in a cluster and can be used in the process of visualization.…”

Section: Cluster Visualizationmentioning

confidence: 99%

Interactive visualization of scattered moment tensor data

Obermaier¹,

Billen²,

Hagen³

et al. 2011

Visualization and Data Analysis 2011

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Moment tensors derived from seismic measurements during earthquakes are related to stress tensors and keep important information about surface displacement in the earth's mantle. We present methods facilitating an interactive visualization of scattered moment data to support earthquake and displacement analysis. For this goal, we combine and link visualizations of spatial location and orientation information derived from moment tensor decompositions. Furthermore, we contribute new tensor glyphs highlighting the indefinite character of moment tensors as well as novel tensor clustering and averaging techniques to aid interactive visual analysis and ease the challenges of interpreting moment tensor data

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Mixing Triangle Meshes and Implicit Surfaces in Character Animation

Cited by 13 publications

References 12 publications

Controlled Metamorphosis Between Skeleton‐Driven Animated Polyhedral Meshes of Arbitrary Topologies

Controlled Metamorphosis Between Skeleton‐Driven Animated Polyhedral Meshes of Arbitrary Topologies

Implicit skinning

Interactive visualization of scattered moment tensor data

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