--- a/TODO	Fri Dec 14 16:51:22 2007 +0100
+++ b/TODO	Mon Dec 17 22:03:50 2007 +0100
@@ -7,8 +7,8 @@
  * kd-tree:
    - optimize structures
    - optimize construction: do not use bounding boxes of shapes, instead implement box-shape intersection
+   - optimize traversal -- no std::vector
    - save/load
- * uniform grid, octree
  * textures (3D procedural, pixmaps later)
  * update Python binding: Camera, new classes
  * namespace