1.	Visibility - Part 2	2.	Visibility - Last Time
3.	Power of Plane Equations	4.	One More Trick with Planes
5.	Constructing a BSP Tree	6.	Computing Visibility with BSP trees
7.	BSP Tree Example	8.	Pixel-level Visibility
9.	Ray-Casting	10.	Ray Casting Advantages
11.	Ray Casting Disadvantages	12.	Depth Buffering
13.	Depth-Buffering Advantages	14.	Depth-Buffering Disadvantages
15.	What Exactly Gets Stored in a Depth-Buffer?	16.	Computing the "Z" Term
17.	Linear yet Non-Linear?	18.	Interpolating Z
19.	Monotonic Z values	20.	Next Time