- automatic initial camera adjustment based on terrain dimension
- lighting
- split terrain drawing code into a separate module (for future plug-in support)
- split terrain sampling code into a separate module (same as above)
- add memory usage statistic report (add the sampling and drawing modules) for future 
  performance comparisons
- separate multi-image prototyping (MDI, multiple SDI or tabbed view) and 
  sequence/overlaping multi-image support
- animation scripting
- landmarks (spatial bookmarks)
- screenshots 

