Pro WPF in C# 2008: Windows Presentation Foundation with .NET 3.5, Second Edition

Interactivity and Animations

To get the full value out of your 3-D scene, you need to make it dynamic. In other words, you need to have some way to modify part of the scene, either automatically or in response to user actions. After all, if you don't need a dynamic 3-D scene, you'd be better off creating a 3-D image in your favorite illustration program and then exporting it as an ordinary XAML vector drawing. (Some 3-D modeling tools, such as ZAM 3D, provide exactly this option.)

In the following sections, you'll learn how to manipulate 3-D objects using transforms and how to add animation and move the camera. You'll also consider a separately released tool: a Trackball class that allows you to rotate a 3-D scene interactively. Finally, you'll ...