Realtime Deformation of Constrained Meshes Using GPU

Alexandre Kaspar, Bailin Deng
Computer Graphics and Geometry Laboratory, Ecole Polytechnique Federale de Lausanne
Symposium on GPU Computing and Applications, 2013


   title={Realtime Deformation of Constrained Meshes Using GPU},

   author={Kaspar, Alexandre and Deng, Bailin and others},

   booktitle={2013 Symposium on GPU Computing and Applications},




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Constrained meshes play an important role in freeform architectural design, as they can represent panel layouts on freeform surfaces. It is challenging to perform realtime manipulation on such meshes, because all constraints need to be respected during the deformation while the shape quality needs to be maintained. This usually leads to nonlinear constrained optimization problems, which are challenging to solve in real time. In this paper, we present a GPU-based shape manipulation tool for constrained meshes, using the parallelizable algorithm proposed in [8]. We discuss the main challenges and solutions for the GPU implementation, and provide timing comparison against a CPU implementation of the algorithm. Our GPU implementation significantly outperforms the CPU version, allowing realtime handle-based deformation for large constrained meshes.
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