Takashi Kanai

Volume-Preserving LSM Deformations

Surface deformations based on physically-based simulations are used to represent elastic motions such as human skins or clothes in the field of 3DCG applications. LSM (Lattice Shape Matching) [Rivers and James 2007] has particularly attracted attention as a fast and robust method which achieves elastic-like motions. However, the original LSM ...

Posted in Computer Graphics

Fragment-based Evaluation of Non-Uniform B-spline Surfaces on GPUs

In this paper, we propose a fragment-based evaluation method for non-uniform B-spline surfaces using recent programmable graphics hardware (GPU). A position on a non-uniform B-spline surface is evaluated by the linear combination of both control points and B-spline basis functions. Hence the computational costs can be reduced by pre-computing a ...

Posted in Free-Form Surface Modeling, GPU Computing

GPU-based Rendering of Point-based Implicit Surfaces

Implicit surface is a well-known surface representation. Geometric details of an object can be represented using less surface primitives than other representations such as polygonal meshes. In this paper, we propose a fast and a direct rendering method of SLIM (Sparse Low-degree IMplicit) surfaces using recent programmable GPUs. Our approach ...

Posted in Computer Graphics, GPU Computing, Implicit Surfaces