Book Image

3D Game Development with Microsoft Silverlight 3: Beginner's Guide

By : Gaston C. Hillar
Book Image

3D Game Development with Microsoft Silverlight 3: Beginner's Guide

By: Gaston C. Hillar

Overview of this book

Microsoft Silverlight is a programmable web browser plug-in that enables the animation, vector graphics, and audio-video playback features that characterize Rich Internet Applications. Silverlight is a great (and growing) RIA platform and games are the next level to exploit in it. But it doesn't offer 3D capabilities out of the box and integrating a 3D engine can involve lot of complex mathematics and matrix algebra. This book will help C# developers to get their fingers on the pulse of 3D in Silverlight. This book uses Balder, an open source 3D engine offering 3D capabilities for Silverlight 3. It leaves out boring matrix algebra and complex 3D mathematics. By the end of the book you will have explored the entire engine, and will be able to design and program your own 3D games with ease! The book begins by introducing you to the fundamental concepts of 2D games and then drives you into the 3D world, using easy-to-follow, step-by-step examples. The book employs amazing graphics and impressive performance, and increasingly adds more features to a 3D game giving you a rich interactive experience. By following the practical examples in this book, you will learn the important concepts, from the creation of the initial models, up to the addition of physics and artificial intelligence. The book helps you to provide realistic behaviors for 3D characters by enveloping models with different textures, using lights to create effects, animating multiple 3D characters using a physics engine (Farseer Physics Engine), and simulating real-life physics. Videos, music, and sounds associated with specific events offer the final touches to the 3D game development learning experience.
Table of Contents (21 chapters)
3D Game Development with Microsoft Silverlight 3
Credits
About the Author
Acknowledgement
About the Reviewer
Preface
Pop quiz—Answers

Time for action—zooming in and out


You want to add zoom in and zoom out capabilities to the camera rotating around the model. However, there is no zoom property.

Using a perspective camera, we can change the values for many parameters to control it like a telephoto lens, as explained next:

  1. 1. Stay in the 3DInvadersXBAP project.

  2. 2. Go to the perspective camera's properties. Check the value for Perspective Field of View (usually 45 degrees by default).

  3. 3. Change it to 150 degrees. You will see more models in the scene, but the spaceship will be shown smaller (further away from the camera), as in the following screenshot:

  4. 4. Now, change it to 75 degrees. You will see fewer models in the scene, but they will be larger (closer to the camera), as shown in the following screenshot:

  5. 5. The Far Clipping Plane value shows the default value of 100. Reduce it slowly, dragging the mouse over the textbox to the left. As you reduce its value, you will see that many pieces of the 3D models in the rendered...