Creating a 3D world to roam in

Now that we are able to create models and objects within our 3D space, as well as generate backgrounds, we may want to create a more interesting environment within which to place them.

3D terrain maps provide an elegant way to define very complex landscapes. The terrain is defined using a grayscale image to set the elevation of the land. The following example shows how we can define our own landscape and simulate flying over it, or even walk on its surface:

A 3D landscape generated from a terrain map

Getting ready

You will need to place the Map.png file (available in the book resource files) in the pi3d/textures directory of the Pi3D library. Alternatively, you can use one of the elevation maps already present—replace the reference to Map.png with another one of the elevation maps, such as testislands.jpg.

How to do it…

Create the following 3dWorld.py script:

#!/usr/bin/python3
from __future__ import absolute_import, division
from __future__ import...