Installing the required add-ons

Let's begin by activating the required Blender add-ons we're going to use in this chapter. There are two add-ons we need to activate. First, we need the Cell Fracture add-on, which will break our model into smaller fragments. The second add-on, called Import-Export STL, is optional and is only required if you are importing an STL model. We'll look at STL models in more detail in the next section.

Let's begin by installing these two add-ons:

1. Create a blank new Blender project and delete all the default objects by pressing A and then X. Then, click Delete to confirm this.
2. Click Edit | Preferences to open the Blender Preferences dialog box.
3. Click the Add-ons tab on the side of this window to display the active add-ons.
4. In the search box, type cell. Then, tick the box next to Object: Cell Fracture. This will activate this add-on.
5. Again, in the search box, type stl. Then, tick the box next to Import-Export: STL...