I'm trying to get into 3D representations for isometric renders in the web based Sketch-Up, but trying to make a building in there look similar enough to the client's is kicking my butt. I'm not committed to buying a licenses for any 3D software until I learn enough to atleast show a channel letter or illuminated cabinet on a building.
The secret is to avoid making the building look like the client's actual building, just make the signage look legit, then import a picture from any given angle, and place the signage on the picture.
The first thing I did with sketchup was map a bunch of buttons I knew I'd need. Not sure what was already set, but having orbit - o, hand - h, rotate - r, move - m, extrude - e, scale - s, and top/l/r/bottom views to the arrow keys, really made it a lot easier. It also helps if you were a pc gamer in the early 00's and played a bunch of Homeworld, it's a very similar camera experience. I'm working off an old standalone version, so I also have a plugin to make faces, and one for importing/exporting dxf files, along with e-cut for corel to export proper dxf files. Without those two plugins, I was at a loss as to how to make anything work right.
Example: (Of course I don't have any wallsigns handy, polesigns are a little trickier to get aligned properly)