Game Physics Cookbook

Chapter 12. Models and Scenes

In this chapter, we are going to develop a Model class that attaches a transformation to a Mesh. We will then move on to managing large sets of models in a scene. Because a Scene can contain a large number of models, we will add an acceleration structure to the Scene. This chapter will cover the following topics:

• The Model object
• Operations on Models
• The Scene object
• Operations on the Scene
• The Octree object
• Octree contents
• Octree operations
• Octree Scene integration

Introduction

In order to represent meshes in the world, we need to add some kind of a transformation to the mesh. We do this by wrapping both the mesh and its related transformation data in a Model class. Instead of managing many independent models, like we have ...