Unlike your local Home Depot, which has thousands of different varieties of lights, Blitz3D offers you only three different light types. Take a look at the code used to create a light:
light = CreateLight()
The first part of the code, light=, is just the name that you give to your light. The next part of the code, CreateLight, actually creates the light, and, finally, the brackets, (), tell Blitz3D what type of light to create. You can specify one of three different types of lights:
Directional Light created by the code light = CreateLight() or light = CreateLight(1). Everything that faces the light will be equally lit (see Figure 7.17).
Point Light created by the code light = CreateLight(2) ...