Umbral Reaver

Like Space Engineers? Choose a block and then wheel through its possible shapes.

I don't think that works. I mean like this: Half Pyramid What would you use to fill those gaps? Edit: I can't get img tags to show it. :I

Take the pyramid block and stand it on its square side. Cut it in half down the diagonal. The result is the half pyramid! It'd be super handy. I can't think of a way to create that geometry with existing blocks.

It'd be handy to see who I'm near.