Mesh handling is an important issue for decreasing the computation complexity and increasing the processing speed of 3D models . However, designing a 3D modeling kernel for a CAD system
is another difficult problem, and it is not covered here. Instead of a
building 3D modeling kernel for smart devices, the system makes
simple 3D models with polygonal meshes, or loads pre-stored
primitive shapes in the form of meshes and then resizes the shapes