Problem
1. Write a procedure to perform a one-point perspective projection of an object.
2. Write a procedure to perform a two-point perspective projection of an object.
3. Develop a routine to perform a three-point perspective projection of an object.
4. Write a routine to convert a perspective projection frustum to a regular parallelepiped.
5. Extend the Sutherland-Hodgman polygon clipping algorithm to clip three4timen-sional planes against a regular parallelepiped.