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Abstract:
We present a method to dynamically apply local refinements to
an irregular triangle mesh
as it deforms in real-time. The method increases surface smoothness
in regions of high deformation by splitting triangles in a fashion
similar to one or two steps of Loop subdivision. The refinement is
computed for an arbitrary triangle mesh and the subdivided triangles
are simply passed to the rendering engine, leaving the mesh itself
unchanged. The algorithm can thus be easily plugged into existing
systems to enhance visual appearance of animated meshes. The
refinement step has very low computational overhead and is easy to
implement. We demonstrate the use of the algorithm in our
physics-based facial animation system.
