Interactive mesh deformation with pseudo material effects

Abstract

This paper presents a novel interactive mesh deformation method that can achieve various dynamic material effects, including elastic membrane and cloth effects. In our framework, a mesh is encoded by some differential quantities based on edge length and dihedral angle; and the deformation is formulated as a least square problem for preserving the edge length and dihedral angle via the differential quantities. In order to obtain anisotropic material effects, we further propose an edge-weighting scheme based on a user-specified vector field. To avoid specifying the local transformations, we set up an iterative scheme for solving the deformation. At last, several examples are presented to show that our approach can interactively generate visually pleasing deformations.

A Cloth Simulation Method Based on Differential Geometric Energy

“…Fig. 6 compares our algorithm result to other main processed algorithm in reference paper [15] and shows the improvement results. Fig.…”

“…Our method is highly motivated by the surface deformation method [15] based on differential coordinates and actually obtains the cloth deformation effects via the geometric energy. The local geometric features are preserved in our method can be visualized in Fig.…”

“…(c) and (d) exhibit the deformation effects from membrane to cloth when combining the length and angle constraints. With the same parameters of α = 1, β = 1e − 5, δ = 1, (a) exhibits the effect of the method[15], (b) shows the result of our algorithm.…”

Example‐Driven Deformations Based on Discrete Shells

“…In this paper we adapt the discrete shell energy [GHDS03] for our mesh deformation operator. Thanks to this non‐linear, physics‐based energy our deformations are free of linearization artefacts, and we can control the local surface stiffness (similar to [PJS06, HZS*06, KG08]) as well as the relation of stretching and bending resistance. Note that while PriMo [BPGK06] performs equally well for pure deformation, it cannot be easily combined with mesh interpolation.…”