11-10-2013, 10:41 PM
Go grab Scott Robertson's Basic Perspective Drawing DVD off of Gnomon. Then when you've gotten comfortable with accurate perspective drawing and building basic forms in 3D space, you can grab his matte rendering DVD's to begin understanding how to render simple and complex forms in perspective with correct value assignment. It's all very methodical and scientific study, so it only takes the time put into it to get it down.