The House tool (and the Street tool, because that is dependent upon the House tool) uses filled and shaded polygons to construct each roof. The tool has limitations because of this, particularly where the style has details such as broad and detailed ridges, since all the House tool can do is a line of a fixed colour for these things.

It can also only do certain shapes of house. However, you can still do some quite complex things with House by combining 2 or more separate house entities as one building. This blog is about drawing cliffs, but I've linked it here because the city itself (with the exception of the open courtyard buildings) is made entirely of CD3 Bitmap B houses - and the FCW is available if you want to have a look and see how the more complicated shapes were made.

Well, that's the Arctic structures done for now :)

Oh go on, then.

My head is fizzing with too much Sketchup right now.

Do you want me to look at that FCW for you to sort out that edge on the grass?

I've been working long days on all the Sketchup models I will need to do the Structures for part 2, and I've almost finished bar a few details. Here are a few samples for the record.

Arctic structures

Desert structures

Tropical/jungle structures

As you can probably tell the sculpting is a matter of working out the basic outline and the shadows so that I get them right in the final drawing, so some things are more detailed while others are merely blocks.

From here I export 3 sheets from each one - the lines, the shading and the shadows all separate, then import them into Affinity Photo, where I will do the actual painting.

Yes, I've seen your page before.

Very impressive :)

I'm not so much into animation, having set a PC on fire one night a few years back when something went wrong on an 18 hour render. A person has to sleep eventually! That was the one I threw out of the window before it set the rest of the flat on fire.

I keep a fire extinguisher in the room these days ;)