Connectivity Transformation for Mesh Metamorphosis
Minsu Ahn Seungyong Lee Hans-Peter Seidel
In previous mesh morphing techniques,
the vertex set and connectivity of an in-between mesh are fixed
and only the vertex positions are interpolated between input meshes.
With this restriction,
to accurately represent both source and target shapes,
an in-between mesh should contain a much larger number of vertices
than input meshes.
This paper proposes a novel approach for mesh morphing,
which includes connectivity changes in a metamorphosis.
With the approach, an in-between mesh contains only the vertices
from the input meshes
and so the in-between vertex count does not exceed the sum of source and target vertex counts.
The connectivity changes are realized by a sequence of edge swap operations,
determined by considering the geometric errors from the input meshes.
Experimental results demonstrate that the proposed approach
generates almost same in-between shapes
as the metamesh-based approach with a much smaller number of vertices.
Eurographics / ACM SIGGRAPH Symposium on Geometry Processing 2004