Vizualisation of 3D NURBS meshes

For several years, CEA DAM has been developing Magix3D, a mesh generation software, and Themys, a visualization software, both based on the VTK (Visualization ToolKit) rendering library. The latter provides numerous algorithms for visualizing numerical simulation results in an HPC context.

The objective of the proposed PhD thesis will be to enrich the VTK library with mechanisms for visualizing and manipulating curved meshes represented by NURBS elements of arbitrary degree. Two key elements will need to be taken into account: the ability to measure the fidelity of the visualized data in relation to the initial data, and the visualization of large data sets representative of the studies conducted at CEA DAM. To this end, volume rendering algorithms will need to be studied and extended to handle NURBS elements.