add items to TODO list

diff --git a/TODO b/TODO
index 552f751..59c363f 100644 (file)
--- a/TODO
+++ b/TODO
@@ -1,3 +1,13 @@
 - sort vertices by error, move the highest-error first
 - build-in jogl and have it self-extract
 
+Marching Cubes
+  - better lighting 
+  - crystal ball interface
+  - face normals
+     - auto-detect normal when adding a face to an existing patch
+     - throw an exception if normal unspecified and not attaching to existing patch?
+     - flip normals when bridging two patches?
+     - Mesh.invertAllFaceNormals()?  Patch-specific version?
+     - Mesh.isWaterTight()
+