To create some models you first need to add primitive shapes. You can either use the predefined one (as for the
box) or create it yourself by defining the vertices (as for the pyramid).
Later you need to combine the individual meshes into a single one. You can offset, rotate, scale or clone them to place them
in desired positions.
Number of trees
Finally, you can style the whole mesh as well as specific components. You can apply different colors and textures
and style the edges.