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Coupling between Meshless FEM Modeling and Rendering on GPU for Real-time Physically-based Volumetric Deformation

Muhammad Mobeen Movania, Feng Lin, Kemao Qian, Wei Ming Chiew, Hock Soon Seah
Nanyang Technological University, Singapore
20th International Conference on Computer Graphics, Visualization and Computer Vision (WSCG’12), 2012

@article{mobeen2012coupling,

   title={Coupling between Meshless FEM Modeling and Rendering on GPU for Real-time Physically-based Volumetric Deformation},

   author={Mobeen, M. and Lin, F. and Qian, K. and Chiew, W.M. and Seah, H.S.},

   year={2012}

}

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For real-time rendering of physically-based volumetric deformation, a meshless finite element method (FEM) is proposed and implemented on the new-generation Graphics Processing Unit (GPU). A tightly coupled deformation and rendering pipeline is defined for seamless modeling and rendering: First, the meshless FEM model exploits the vertex shader stage and the transform feedback mechanism of the modern GPU; and secondly, the hardware-based projected tetrahedra (HAPT) algorithm is used for the volume rendering on the GPU. A remarkable feature of the new algorithm is that CPU readback is avoided in the entire deformation modeling and rendering pipeline. Convincing experimental results are presented.
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