Abstract: An automated process facilitates the fabrication-oriented design of a mold for an inflatable, deformable balloon. The automated process comprises a computational balloon design process that, given a desired shape of an inflated balloon, computes an optimal rest shape of the balloon that, when inflated, approximates the desired shape as closely as possible. In such a design process, the optimal rest shape of the balloon is solved for numerically using a physics-driven shape optimization method combining physical simulation of inflatable elastic membranes with a dedicated constrained optimization algorithm. Once the optimal rest shape is determined, a dip mold can be fabricated that is suitable for manufacturing balloons having such a rest shape.

Abstract: Techniques are proposed for animating a deformable object. A geometric mesh comprising a plurality of vertices is retrieved, where the geometric mesh is related to a first rest state configuration corresponding to the deformable object. A motion goal associated with the deformable object is then retrieved. The motion goal is translated into a function of one or more state variables associated with the deformable object. A second rest state configuration corresponding to the deformable object is computed by adjusting the position of at least one vertex in the plurality of vertices based at least in part on the function.

Abstract: There is provided a motion-based design system and a method for use in producing a motion-based design of a mechanical object. In one implementation, such a method includes identifying a motion curve associated with a movement by an articulated structure corresponding to the mechanical object, and mapping the motion curve to a mechanical sub-assembly. The mapping is performed based on a previously characterized trajectory of the mechanical sub-assembly and the similarity of that trajectory to the motion curve. The method also includes utilizing the first mechanical sub-assembly to substantially replicate the motion curve.

Abstract: There is provided a posture guided design system and a method for use in producing a posture guided design of a deformable object. In one implementation, such a method includes identifying a target posture for the deformable object, and determining locations of actuators for producing the target posture. The method also includes modeling the deformable object using at least one material so as to enable the deformable object to substantially reproduce the target posture. In some implementations, the method includes modeling the deformable object using at least two materials, wherein a distribution of the at least two materials is determined so as to enable the deformable object to substantially reproduce the target posture.

Abstract: A method is disclosed for applying physics-based simulation to an animator provided rig. The disclosure presents equations of motions for simulations performed in the subspace of deformations defined by an animator's rig. The method receives an input rig with a plurality of deformation parameters, and the dynamics of the character are simulated in the subspace of deformations described by the character's rig. An artist's control of the simulation can be enhanced by providing a method that transforms stiffness values defined on rig parameters to a non-homogeneous distribution of material parameters for the underlying rig.

Abstract: A method is disclosed for applying physics-based simulation to an animator provided rig. The disclosure presents equations of motions for simulations performed in the subspace of deformations defined by an animator's rig. The method receives an input rig with a plurality of deformation parameters, and the dynamics of the character are simulated in the subspace of deformations described by the character's rig. An artist's control of the simulation can be enhanced by providing a method that transforms stiffness values defined on rig parameters to a non-homogeneous distribution of material parameters for the underlying rig.

Abstract: An automated process facilitates the fabrication-oriented design of a mold for an inflatable, deformable balloon. The automated process comprises a computational balloon design process that, given a desired shape of an inflated balloon, computes an optimal rest shape of the balloon that, when inflated, approximates the desired shape as closely as possible. In such a design process, the optimal rest shape of the balloon is solved for numerically using a physics-driven shape optimization method combining physical simulation of inflatable elastic membranes with a dedicated constrained optimization algorithm. Once the optimal rest shape is determined, a dip mold can be fabricated that is suitable for manufacturing balloons having such a rest shape.

Abstract: A computer-implemented method is provided for physical face cloning to generate a synthetic skin. Rather than attempt to reproduce the mechanical properties of biological tissue, an output-oriented approach is utilized that models the synthetic skin as an elastic material with isotropic and homogeneous properties (e.g., silicone rubber). The method includes capturing a plurality of expressive poses from a human subject and generating a computational model based on one or more material parameters of a material. In one embodiment, the computational model is a compressible neo-Hookean material model configured to simulate deformation behavior of the synthetic skin. The method further includes optimizing a shape geometry of the synthetic skin based on the computational model and the captured expressive poses. An optimization process is provided that varies the thickness of the synthetic skin based on a minimization of an elastic energy with respect to rest state positions of the synthetic skin.