Provot X. Deformation constraints in a mass-spring model to describe rigide cloth behavior. Graphics interface'95 proceedings.: AK Peters Ltd; 1995 p. 147--54.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....One solution is to take very large spring constants and use an implicit method for solving the differential equations [Bar98, Vol01, Cor02] Another, older approach is to use springs with a small k ij and to apply a post step correction for springs which are overly elongated. This idea is after [Pro95]. The algorithm iterates over all springs and moves the two particles together along their common axis. Both particles are either moved by the same distance or, in the case of external constraints, only one of them is moved. This was followed and applied also in the context of an approximate ....

....(a) b) Figure 2: A tabletop consisting of 1600 particles draped on a sphere in real time. The coefficients for the bending constraints are 0.89 for (a) and 0.99 for (b) The coefficients for structural constraints were not changed. for our computation. Only the post correction as proposed by [Pro95] will take place. But now nothing hinders the cloth to collapse since no springs are active. Therefore we also add an additional constraint for too short springs. To compute the new particle positions we determine in the first step the direction and length of the correction vector by u ....

Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface 95, pages 147--154, 1995.

....simulation methods becomes clear. Recently several ingenious techniques for modeling deformable objects have been proposed. Examples include multi resolution representations that avoid wasting time on irrelevant details (e.g. 4, 6,8] reformulating the dynamics to make them more stable (e.g. [15,20]) extensive precomputation to minimize runtime costs (e.g. 9, 10, 19, 22] robust integration schemes that afford large time steps (e.g. 3] and many other approaches that we cannot list here due to space constraints. As of yet, none provides a perfect solution that satisfies the requirements ....

Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface 95, pages 147--154, May 1995.

....like hysteresis and anisotropic behaviours. To integrate the system, the authors used the fourth order RungeKurta method with an adaptive time step, that is faster than the previous one. A tablecloth ckaping (30 x 30 particles) needs about twenty minutes on a RS000 Silicon Graphics. Provot [5] has also used a system of particles. Cloth is modeled with a network of masses linked together by massless springs. Provot has presented a new method allowing to have cloth animation with high contraints such as a hanged piece of cloth. To model the nonelastic behaviour of cloth, he used the ....

....is very fast. All these previous methods use uniform meshes, triangular or quackilateral. Nevertheless, some works have been done using adaptive meshes. Hutchinson et al. 13] were the fu st to show a multi grid method dedicated to cloth animation. Their me chanical system is the Provot one [5], a mass springs system. On the other hand, authors employed uniform quackilateral meshes. The main idea is to generate a coarse uniform mesh at the begining of the simulation and to refine the mesh when angle between two edges exceed a given threshold. When this phenomenon occurs, the four quad ....

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Provot X. "Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behaviour. " Computer Interface Proceedings, pp. 147-154. Quebec City, Canada, May 1995

....Poser s virtual characters. 1 Poser 3D character animation and design toolkit by Cu rious Labs The basis of the simulation system is a coupled particle system. These systems have been increasingly employed for physically based modelling of deformable objects especially textiles and garment [1, 3, 6, 9, 19], because they have been proven to allow for fast simulations and convincing results. Moreover, they can be derived from models of continuum me chanics by a finite difference formulation [8] Hence, correct forces and physical material properties such as bending, shearing, and tension parameters ....

X. Provot. Deformation Constraints in a Mass- Spring Model to Describe Rigid Cloth Behavior. In W. A. Davis and P. Prusinkiewicz, editors, Graphics nterface '95, pages 147-154, 1995.

....extensively used in Computer Graphics over the last fifteen years, and are still very popular. Easier to implement and faster than finite element methods, these systems allow animation of dynamic behaviors. They have been applied to the animation of inanimate bodies such as cloth or soft material [17, 10, 15, 5] and to the animation of organic active bodies such as muscles in character animation [11, 1, 12] Both isotropic and anisotropic elastic materials can be found among the objects to animate. For instance, a rubber toy is isotropic, while most natural objects (animal organs, plants) are strongly ....

X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Proceedings of Graphics Interface '95, pages 147--154. Canadian Human-Computer Communications Society, May 1995.

....through the valley, passing very close to the trees when turning back. Note that the scene contains around 200 millions primitives (branches and leaves) reproduces fine shadows, gives smooth transitions while zooming, with very little aliasing, using a single Thanks are due to Xavier Provot [Pro95] for his flag animation model. ray per pixel. The last scene shown in Fig. 17 right, contains the same forest pattern applied on another terrain, using more jittering. An important issue for the resulting look is that the is made of 12210 triangular faces on which 253 trees lie. On the ....

Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface '95 Proceedings, pages 147--154, May 1995.

....partial derivative equation of motion [26] Easy to implement, highly parallelizable, and involving few computations, it seems a perfect candidate for virtual reality applications. Recently, improvements to this model have been made, such as an post integration step to bound the stretch of springs [23], as well as adaptive time stepping to preserve the system s global energy [13] Figure 1. Picture captured during a live session using our cloth model. The skirt was wrapped and seamed in real time. Unfortunately, all of these approaches suffer from the same problem: the time step must be ....

....to enforce a desired constraint. Various approaches have been proposed to iterate small displacements until constraints are met [10, 20, 8] 3.3. 2 Implementation In our context, we use an adequate and straightforward poststep modification of mass points to eliminate large stretch as defined in [23] and in [6] The underlying idea is simple: each time a spring is over stretched, we bring the two extreme mass points together along their axis while preserving the position of the center of gravity of these two masses. 4 If one of the two mass points is constrained at a given position, we ....

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface, pages 147--154, June 1995.

.... In the early eighties, Jerry Weil proposed a geometric model for hanging cloth [Wei186] The introduction of dynamics in the woven cloth modelling scheme [Terzopoulos87] Breen92] Eberhardt96] induced real improvements, leading to realistic animation of virtual clothes [Carignan92] Volino95] [Provot95]. On the other hand, the knitted cloth study is still marginal. This fact can easily be explained by the complexity of the knitted cloth structure of which the stitches fitting plays an important part in the global dynamic behaviour. This reflection got us to develop a model for knitwear at the ....

Provot,X.: Deformation constraints in a mass-spring model to describe rigid cloth behaviour, Graphics Interface proceedings, pp 147-154, 1995.

....model muscle actions [26, 22, 15] or to constrain a skin layer to lie on the corresponding skull section. Generally speaking, the mass spring model is often used together with other models, for example to model 1D or 2D entities in a 3D context (see some examples in the context of cloth simulation [1, 2, 16]) rather than to represent directly a 3D object. With the term Mass Spring System we intend a system formed by a set of mass points and a set of constraints between couple of points; each point is subjected to forces due to the status of the springs connected to it and to the potential external ....

Xavier Provot, Deformation constraints in a mass-spring model to describe rigid cloth behavior, Graphics Interface '95, May 1995, ISBN 0-9695338-4-5, pp. 147--154.

....but a serious problem occurs when cloth is simulated with the mass spring model. Because the mass spring model represents the links between mass points by springs, super elongated links cannot be avoided. 6.1. Our strategy Provot et al.: proposed a simple and effective inverse dynamics process[9]. Their method is shown in Fig.2. When a super elongated spring is linked with a constrained mass point and an unconstrained mass point, as shown in Fig.2 (a) the position of the unconstrained mass point is adjusted to make the length between the mass points become the rest length of the spring. ....

X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. Graphics Interface, pages 147--154, 1995.

....equation of motion [TPF89] It is easy to implement, is highly parallelizable, and involves few computations. It seems a perfect candidate for simple virtual reality applications. Recently, improvements to this model have been made, such as an inverse dynamics step to bound the stretch of springs[Pro95] Adaptive time stepping to preserve the system s global energy has also been proposed [Jou96] Figure 1: Picture captured during a live session using our cloth model. The skirt was wrapped around the waist and seamed at the hip in real time. Unfortunately, all of these approaches suffer from ....

....approaches have proposed to iterate small displacements until constraints are met [GG94, Ove91, Fau98] 4. 2 Iterative Constraint Enforcement Process For our applications, we use an adequate and straightforward post step modification of mass points to eliminate large stretch as defined in [Pro95] where more details can be found. The underlying idea is the following: each time a spring is over stretched, bring the two extreme mass points together along their axis while preserving the position of the center of gravity of these two masses. If one of the two mass points is constrained at a ....

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Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface, pages 147--154, June 1995.

....of ones for which g(k) has been previously computed. For example, small contribution due to perpendicular fibers can be added in this manner if necessary. Because the appearance of real cloth is dramatically affected by the presence of characteristic wrinkles, we used a dynamic simulation method [17] to create cloth geometry. The left side of Figure 11 shows a satin tablecloth rendered with generated BRDF. It is interesting to contrast this image with the image on the right using the same geometric model with the BRDF described in the next section. 6.4 Velvet Velvet is another example of a ....

PROVOT, X. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Proceedings of Graphics Interface '95 (1995), pp. 147--154.

....which form the geometric representation. The mass points are conected by stiff linear springs, which preserve the length of the cable. Torsion springs situated at the mass points describe the elastic bending behaviour. Their restoring forces are proportional in angle and not in elongation. Provot [12] proposed flexion springs, which are linear springs connecting the ith mass point with the (i 2)th mass point, but from our experiments a model using torsion springs corresponds better to the behaviour of cables. Figure (1) illustrates these two different spring models. The drawback of the ....

X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behaviour. In Graphics Interface '95, 1995.

....Keywords: flexible object, mass spring model, implicit method, stability 1 INTRODUCTION For the physically based modeling, the massspring model is a simple and powerful approach to representing flexible objects such as cloth. There have been many techniques for simulation of flexible objects [Carig92, Volin95, Provo95], and the techniques use various models such as finite element model, particle system, deformable surface model [Wang98] Among those models, the massspring model is the easiest and most intuitive. Various techniques have been introduced to use the mass spring model to simulate or animate the ....

....use various models such as finite element model, particle system, deformable surface model [Wang98] Among those models, the massspring model is the easiest and most intuitive. Various techniques have been introduced to use the mass spring model to simulate or animate the flexible objects [Provo95, Desbr99, Chen98]. Animation techniques based on the mass spring model can be formulated as a simple ordinary differential equation. We can easily calculate the force on each mass point, and we can animate the mass point by numerical integration of the force. Figure 1: Snapshots of Ribbon Dance Animation Explicit ....

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Provot, X.: Deformation constraints in a mass-spring model to describe rigid cloth behavior, Proc. of Graphics Interface '95, pp. 147--154, 1995

....Dynamic animation , Lagrangian equations, spline, parametric surfaces, parametric volumes, deformable objects. INTRODUCTION Usual dynamic animation methods for deformable continuous objects often imply some discretising of the objects matter (see for examples [Lucia86] Breen92] Chanc95] [Provo95] ) In such schemes, matter is concentrated upon a finite set of material points. We think this is physically unrealistic and would prefer to handle those objects as continuous. We thus present how continuous deformable objects of intrinsic dimension 1, 2 or 3 can be handled by an unified, ....

Provot X., Deformation constraints in a mass-spring model to describe rigid cloth behaviour, Proceedings of Graphics Interface, pp. 147-154, 1995.

....caused by rigid collisions [Baraf93] Mirti95] 4. INTERACTING PARTICLES AND MASSSPRING SYSTEMS Another face of physically based modeling is the simulation of flexible bodies and surfaces. This field has seen its most recent successes in the simulation of cloth, e.g. clothing, flags, etc. [Provo95] [Baraf98] Many of the techniques for flexible body dynamics extend the notion of a particle system; a set of non interacting bodies affected by external forces. To model deformable surfaces or objects, we add interaction forces between the particles. These forces come in many forms, from the ....

Provot, X: Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior, Proc. Graphics Interface, 1995, pp 147-154.

....the low speed. A relatively good result demonstrated by Baraff and Witkin [8] is 14 seconds per frame for the simulation of a shirt with 6,450 nodes on a SGI R10000 processor. This is the main reason why these techniques cannot be applied to an interactive system working on the Internet. Provot [10] used a mass spring model to describe rigid cloth behaviour, which proved to be much faster than the techniques described above. Its major drawback is the super elasticity. In order to overcome this problem he applied a position modification algorithm to the ends of the over elongated springs. ....

....on what type of simulation we wish to model. The most frequent ones will be: Gravity: f gr (p ij ) mass g, where g is the gravity acceleration; Viscous damping: f vd (p ij ) C vd v ij , where C vd is a damping coefficient. For more information on how to model wind see Provot [10]. All the above formulations make it possible to compute the force f ij (t) applied on point p ij at any time t. The fundamental equations of Newtonian dynamics can be integrated over time by a simple Euler method: 1 ) t t t t t t t t t t t t t mass t t ij ....

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X. Provot, Deformation constraints in a mass-spring model to describe rigid cloth behaviour, Proc. of Graphics Interface, 1995, pp. 141-155.

....with a virtual environment. 1.1 Review of previous work and relative papers Based on elastic theory [19] various deformationmodeling methods have been studied in computer graphics. All methods are based on non rigid elastic physical models using different mathematical physics approaches [5] to solve a series of differential equations. The set of methods can be classified into those that use traditional differential equation solution such as [1,2,3,6,7] those that use a mass spring model [5,8,10,11] and those that use FEMs (finite element method) 4,9,12,15,16] Terzopolous et al. ....

....based on non rigid elastic physical models using different mathematical physics approaches [5] to solve a series of differential equations. The set of methods can be classified into those that use traditional differential equation solution such as [1,2,3,6,7] those that use a mass spring model [5,8,10,11] and those that use FEMs (finite element method) 4,9,12,15,16] Terzopolous et al. [1] and Platt, and Barr [2] have shown the advantages of physically based models over kinematic models for computer animation. The particular shape an elastic body is a function of both the internal stress and ....

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X.Provot, 1995, "Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior," Graphics Interface'95, 147-154.

....models have been proposed, specically with regard to their dynamical behavior. Luciani [26] developed an animation system (CORDIS ANIMA) based on particle systems for modeling complex physical phenomenon. The system is coupled with a forcefeedback device for real time interaction. Provot et al. [27] dened super elongated springs to increase the stioeness of its cloth model but with no guarantee of convergence. Coveret al... 28] used springs to represent the surface of the gall bladder. They combined home forces with internal forces to enforce shape constraints. Similarly, Kuhn et al. 29] in ....

Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface'95, 1995.

....Newton s law of motion to simulate the cloth movement and deformation. The equations were solved using the second order Euler Cromer method. Sakaguchi et al. Sakag95] developed a dynamically deformable cloth model based on Newton s law of motion considering the damping effect of cloth. Provot [Provo95] proposed a classic mass spring model and Newton s law of motion to simulate cloth under constraints. Breen et al. Breen92] used particles to model the draping behaviour of woven cloth. The crossing points of the warp and weft threads were treated as particles. Initially, the positions of these ....

Provot, X., 1995, Deformation constraints in a mass-spring model to describe rigid cloth behaviour, Proc. of Graphics Interface, pp. 147-154.

....1996a] Tremblay and Cutkosky, 1993] This type of research suffers from the same limitations as does rigid manipulation of compliant objects. Dynamic modeling of deformability has been studied in the fields of computational solid mechanics and computer graphics [Chaudhuri and Chatterjee, 1991] [Provot, 1995], Thalmann and Thalmann, 1995] In solid mechanics, the focus is 2 mainly on steady state stress and strain distributions of a deformable body under external loads. In computer graphics, deformation is seen as a tool for producing realistic looking animations. Currently there are some efforts ....

....component. The work in [Astley and Hayward, 1998] simulated the dynamics of deformable visco elastic 3 D bodies for haptic interaction. The dynamics were based on a multilayer FEM model in which each layer represented a different level of resolution, thus minimizing the computation time. 22 Provot [Provot, 1995] used a physically based model for animating cloth objects. The system used a FEM implementation and a simple Euler integration method to extract position at iterative instances of time. In order for the system to effectively animate the cloth objects, values for all parameters (mass, viscosity, ....

Provot, X. (1995). Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface '95, pages 147--154.

....have been proposed, specically with regard to their dynamical behavior. Luciani [LJFC91] developed an animation system (CORDIS ANIMA) based on particle systems for modeling complex physical phenomenon. The system is coupled with a forcefeedback device for real time interaction. Provot et al. [Pro95] dened super elongated springs to increase the stioeness of its cloth model but with no guarantee of convergence. Coveret al... CEO93] used springs to represent the surface of the gall bladder. They combined home forces with internal forces to enforce shape constraints. Similarly, Kuhn et al. ....

Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In , 1995.

....model muscle actions [26, 22, 15] or to constrain a skin layer to lie on the corresponding skull section. Generally speaking, the mass spring model is often used together with other models, for example to model 1D or 2D entities in a 3D context (see some examples in the context of cloth simulation [1, 2, 16]) rather than to represent directly a 3D object. With the term Mass Spring System we intend a system formed by a set of mass points and a set of constraints between couple of points; each point is subjected to forces due to the status of the springs connected to it and to the potential external ....

Xavier Provot, Deformation constraints in a mass-spring model to describe rigid cloth behavior, Graphics Interface '95, May 1995, ISBN 0-9695338-4-5, pp. 147--154.

....integration methods and Maple optimized code, as well as a dynamic, not static treatment of the problem obtain similarly realistic results, while dropping the computational cost to approximately 20 30 minutes per frame on an SGI R8000 processor. No mention is made of damping terms. Provot [13] focuses on improving the performance of explicit methods by a post step modification of nodal positions. He iteratively adjusts nodal positions to eliminate unwanted stretch; the convergence properties of this method are unclear. A more comprehensive discussion on cloth research can be found in ....

X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface, pages 147--155, 1995.

.... Simulation, c flSpringer, This copy for personal use only. whose connectivity is maintained through constraint forces (usually generated from a damped spring abstraction) Systems of this nature have been used to simulate flesh around rigid bodies [6] the behaviour of cloth like sheets [1, 12, 7], decomposable solids [4] fluids [9] and even worms [10] The second group is most commonly used for two principal reasons: it is easier for the animator to integrate this approach with simulations of rigid bodies and it is far easier to implement. However, the strategy of approximation used in ....

X. Provot. Deformation Constraints in a Mass-Spring Model to describe Rigid Cloth Behaviour. In Proceedings of Graphics Interface '95, 1995.

....has attracted considerable interest is cloth modeling. See [68] for a review. However, most cloth fabrics differ from human body tissues; they strongly resist stretching motions while being very permissive in allowing bending motions. FEM techniques are used in [18, 36] and mass spring models in [4, 9, 22, 75]. Another area that uses deformable models is facial animation [85, 88, 91] In [88] a mass spring mesh with four layers of nodes is used. The external layer represents the epidermia, while the innermost layer is attached to the bone structure. The three intermediate layers of links have different ....

X. Provot. Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior. In Graphics Interface '95, W.A. Davis and P. Prusinkiewicz (eds.), Canadian Information Processing Society, May 1995, pp. 147-154.

....The pseudo frequency of the noise function can be controlled, and is used to define a fractal function called turbulence, more realistic for both texturing and random motion. The resulting lightning and shadow waves increase the realism of the motion. 1 Thanks are due to Xavier Provot [8] for his flag model. x t F y t F gust of wind fractal solid noise jittering Figure 2: wind intensity in the x and y horizontal directions. 4.3 Animated Texels Content Cartoon animation is based on switching sampled stages of a motion. This can also be used in 3D for simple or quick motions ....

Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface'95 Proceedings, May 1995.

....a mass spring physically based model. In the second part, we present a method to identify such a model from given geometric data. Present results show the algorithm s ability to recover parameters from synthetic cloth animations. 2 A Mass Spring cloth model We are using the model described in [P95] which has proved to be more realistic than classical elastically deformable models used by Terzopoulos in [TPBF87] and by Thalmann in [CYMT92] The linear elasticity of the elastic models used by the latter, leads indeed to unrealistic deformations of cloth objects which are successfully ....

.... has proved to be more realistic than classical elastically deformable models used by Terzopoulos in [TPBF87] and by Thalmann in [CYMT92] The linear elasticity of the elastic models used by the latter, leads indeed to unrealistic deformations of cloth objects which are successfully controlled in [P95] with a minimal increase in the computation cost. Breen s particle systems [BHW94] have not been used to model the dynamic behaviour of cloth objects, and the computation time needed for such a system is much greater than that of the model we use. A reasonable computation time is required in order ....

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X. Provot, "Deformation Constraints in a Mass-Spring Model to describe Rigid Cloth behavior", Graphics Interface 1995, Québec, April 1995.

....(AFFD) axial deformations and 3D morphing, ffl interactively design textures and their mapping upon object surfaces. Dynamic objects (e.g. deformed at run time using physics based models) are introduced at rendering time by external modules. The dynamic module used for synthetic cloth animation [Pro95] is a mass spring model which takes into account interactions such as contacts and collisions with other objects. At this stage the camera model and and trajectory are integrated in the modeler so that the user in charge of animation can see the virtual objects from the point of view of the real ....

....(such as jittering or bad occultation boundaries) Typically this involves obtaining sub pixel accuracy in the visual projection of aligned 3D models onto the original image sequence. Up to now, collisions between real and virtual objects are detected and modeled only by using a mass spring model [Pro95] To generalize this, work in progress includes attempts to add an interactive tool in the modeling part of the synthesis process, which would automatically prevent interpenetrations during insertion virtual objects in the real scene. More generally the framework proposed above is not limited to ....

X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Proceedings of Graphic Interface'95, pages 147-- 154, Qu'ebec, Canada, May 1995.

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Provot X. Deformation constraints in a mass-spring model to describe rigide cloth behavior. Graphics interface'95 proceedings.: AK Peters Ltd; 1995 p. 147--54.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behaviour. In Proceedings of Graphics Interface (GI'95), pages 141-- 155, 1995.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface, pages 147--154, May 1995.

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Xavier Provot. Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior. In Graphics Interface '95, pages 147--154, 1995.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. Graphics Interface, 1995.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In W. A. Davis and P. Prusinkiewicz, editors, Graphics Interface '95, pages 147--154. Canadian Information Processing Society, Canadian Human-Computer Communications Society, May 1995. ISBN 0-9695338-4-5.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In W. A. Davis and P. Prusinkiewicz, editors, Graphics Interface '95, pages 147--154, May 1995. ISBN 0-9695338-4-5.

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X. Provot, "Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior," Graphics Interface, pp. 147-154, 1995.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Proceedings of Graphics Interface (GI 1995.

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X. Provot, "Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior," Graphics Interface, pp. 147-154, 1995.

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Xavier Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. Graphics Interface 95, pages 147--152, May 1995.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. Graphics Interface, 1995.

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X. Provot. Deformation constraints in a mass-spring model to describe rigid cloth behavior. In Graphics Interface '95, pages 147--154, May 1995.

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X. Provot. "Deformation constraints in a mass-spring model to describe rigid cloth behavior", Graphics Interface, pp. 147--155 (1995).

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Provot X. Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior In Proceedings Graphics Interface '95, 1995, pp 147-154.

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X. Provot. "Deformation constraints in a mass-spring model to describe rigid cloth behavior." In Graphics Interface '95, pages 147-154, 1995.

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Provot, Xavier. 1995. Deformation Constraints in a Mass-Spring Model to Describe Rigid Cloth Behavior. Proc. Graphics Interface '95, pp 147154.

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