...let's add more detail.  I often use the multi-point plotting and rendering method developed by Frank Lloyd Wright...a lost art. Something I'm willing to teach to anyone interested.  It's still a useful skill for showing clients (or yourself) a quick look at how a building, room or detail looks...or for more detailed and accurate renderings, with hand drawn appeal.  I have clients who prefer hand renderings, which pleases me, however, I've enjoy working closely with others for "Sketchup" computer models and varying views, too...see that section.