That said, I'm a professional video maker by day, and the quality of what I'm going to show you is seriously not to my usual standard. There's a page of notes that I'd normally address and re-do, but the model got painted, so short of a voiceover to fix the meandering commentary (and that won't happen soon), or a time machine to start again, I thought I'd share this initial work before it gets completely out of date.
So without further ado, here's how to mask some complex shapes for camouflage.
Comments are welcome - and flames are mostly expected. These will get better as I produce them.