I was driving home from Trivia last night and had the opportunity to be stuck in traffic due to construction.  An ambulance had to come zipping along with its lights flashing and I thought about how the lights would look in my system.  It was then that I realized that I didn't need to care about dewarping the image - that was just me thinking like a squishy bag of liquids and gasses again.  Whew.  I'll draw my thoughts later...