Visualize FEA meshes (demo_FEA_visualize.cpp)

Tutorials to illustrate how to use the FEA module to perform FEA dynamics in a 3D view.

• Learn how to visualize FEA in the realtime view,

• Learn to use tetrahedrons and hexahedrons for nonlinear dynamics.

\include demo_IRR_visualize_FEA.cpp

\include demo_VSG_visualize_FEA.cpp