1 Overview: You must write one class and modify two existing clases so that you can render "solid" objects. You must use a z-buffer algorithm to "remove" hidden lines/surfaces.

2 New Classes: You must write the following classes:

The ZBuffer Class.

3 Modifications to Existing Classes: You must modify the following classes:

The Rasterizer2D Class.
The Rasterizer3D Class.

4 Submission: In addition to the materials you must always submit, for this assignment you must submit hardcopy of the output produced by the following driver:

PA4Driver

when run as follows:

java PA4Driver ball.txt
Enter the x and y rotation angles:
-60,0

In MS-Windows, you can copy the contents of the active window to the system clipboard by pressing Alt-PrintScreen.