This chapter deals with an important subject that is bound to crop up in any animation or simulation: collisions. More precisely, it focuses primarily on collision resolution-how to respond to collision events-as opposed to collision detection, which was discussed to some extent in Chapter 2. Both collision detection and collision resolution are vast subjects in their own right. The intricacies of collision detection for general objects are outside the scope of this book (because we focus on the physics), but things are much simpler for collisions between particles, which is the main subject of this chapter. Similarly, it is impossible to cover all aspects of collision resolution in a single chapter. We shall, therefore, concentrate on some of the basics that are most commonly encountered. Specifically, we shall restrict attention to collisions of particles with fixed walls (bouncing) and with other particles.


Relative Velocity Vertical Wall Collision Detection Inelastic Collision Elastic Collision 
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© Dev Ramtal and Adrian Dobre 2011

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  • Dev Ramtal
  • Adrian Dobre

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