Setup the code to start working on KD trees.
Renamed KDTree to KDTreeSpace.
Start working on KD-Trees.
KDTree building implementation (untested).
Fixed a bug in the KD-Tree building algorithm causing infinite recursion when a node contains all the candidate polygons.
Partially implemented the KD Tree.
Fixed the renderer dead pixels.
Further progress in KD trees.
Rendering using KD-Trees.