I'm being dim - How do I make this shape?

I must be dim, cos I can't work out how this shape was made from just 1 prim.

I can take a cube, hollow it (90% ish) then cut away the start and end points to ALMOST get this shape, but I end up with a right angle shape and not the top leaning back as in this image.

Must be a trick I'm missing?

Make your cube into a diamond first. Twist it 45 degrees X and Y. It will still look like a cube, but one whose corners are centered on the X and Y axes. Then stretch along one of those axes to make it so that the sides of the prim aren't at right angles any more. THEN go ahead and hollow and cut the shape as you did before. It ought to work.

Ah great... Go there in the end.

I had trouble knowing which control you meant by the twist to 45' but sussed it out in the end, and (with a bit of luck) have got the shape......

Many Many thanks

*blinks* Interesting. That just taught me a whole new way to do a low-prim roof.

One odd effect. A cube that has been squashed into a diamond like that does not show planar textures in their correct aspect ratio. It's offset by the ratio difference corner to corner.

True. If you're going to use it for a one-prim roof, of course, the easiest thing to do is to texture the prim's thin edges blank (or maybe apply a texture with just a little noise to it) and give them a nice gray color that suggests the edge of a shingled roof. That way you don't need to worry about using planar orientation at all.

I found that hollowing to 90% or so and doing the cuts at 0.253 and 0.747 worked a bit better for the edges than using 0.25 and 0.75, by the way.

Ceera & Rolig,

Great advice from both of you. I have been banging my head against the wall trying to come up with a better way of making a low prim roof with different pitches and better edging. This works great. Thanks to both of you.