[bmg-commit]

[Peter Luka <luka@graphics.lcs.mit.edu>]

Update of /d9/projects/walkthru/src/dm
In directory lime:/tmp/cvs-serv146114/dm

Modified Files:
	dmcallback.cpp frame.cpp frame.h update.cpp 
Log Message:
cleanup obsolete code, add comments on how the update/draw callchain
works, turn on some useful debug messages in dmcallback.cpp.