Game Development Reference
In-Depth Information
Figure 11-3
.
Scene Kit editor
What is a Collada file, and why is it important to Scene Kit? Collada is a COLLAborative
Design Activity file, formatted for interactive 3D applications. This file is an example of
how the separation of concerns is implemented. A 3D graphic artist has the ability to cre-
ate objects in their own tool set and provide this exported file to you, the developer. This
technique allows the graphic artist to create complex and sophisticated scenes that pro-
duce an immersive experience for your players.
If you look at your spaceman, you can see how you used the scene graph for him.
As shown in
Figure 11-4
,
the scene was loaded when you loaded the Collada file, which
was exported for use as a Data Asset Exchange (
.dae
) file. The Collada file specifies the
following:
a.
The camera node to view him
b.
The geometry
c.
The material
d.
The light node for the spotlight around him
