Book Image

Papervision3D Essentials

Book Image

Papervision3D Essentials

Overview of this book

Papervision3D is a powerful real-time 3D engine for Flash. Papervision3D can take externally created 3D models and render them as Flash content, without requiring end-users to download or install an additional plug-in. It has an outstanding reputation within the Flash community and its ease of use has even impressed experienced 3D game developers. However, getting started with Papervision3D can be daunting and mastering it can be challenging. This book guides you through the easiest way to tackle challenges that you may normally face with Papervision3D and master them effectively. The book will show you how to build Papervision3D applications from scratch in the easiest way, providing plenty of examples that make sense even if you're not a Flash expert. Papervision3D Essentials serves as a comprehensive guide to getting you started, as well as being an invaluable reference for every Papervision3D user and developer. By the end of this book you will be able to create your own projects with real-time 3D rendering. Since the first release of Papervision3D in 2007, the authors have been involved in various commercial projects with Papervision3D, building up a deep understanding of the engine. In Papervision3D Essentials, the authors share their knowledge to help you create stunning 3D content in Flash and teach you how to work with one of the most exciting open-source Flash projects around. Papervision3D Essentials shows you how to download Papervsion3D and make it work in Flash, Flash Builder and Flex Builder. It provides a short introduction to Object Oriented Programming and classes for those who are new to non-timeline programming. Then, it takes a closer look at the engine, discussing a broad range of topics from how to work with built-in 3D objects to using and animating cameras, 3D objects, and light. Applying materials and textures, using filters and effects, particles and performance optimizations are also covered. Ultimately, this book will provide you with the information you need to build your first Papervision3D application. Covering the basics, but by no means limited to beginners, Papervision3D Essentials provides a thorough explanation of the engine and numerous tips and tricks, making it a valuable resource for every Papervision3D user.
Table of Contents (18 chapters)
Papervision3D Essentials
Credits
About the Authors
About the Reviewers
Preface

Optimizing objects


The more complex your objects are, the more triangles need to be drawn. It's been said before that you should always try to keep the triangle count as low as possible. When modeling with external tools, it's better to make a very low poly model first and then add more polygons or triangles afterwards if necessary. Doing it vice versa, by removing triangles from an advanced model, will be a lot more work.

But there are more techniques available to optimize objects. We will have a look at these in the following sections.

Remove objects that are behind other objects

It sounds easy: Just remove your objects when you know they won't be visible. This does not refer to objects that are positioned outside the camera's view frustum or back facing surfaces of 3D objects, as Papervision3D will detect these automatically for us. The title of this section refers to objects that are located in the view frustum, but are positioned behind other objects from certain points of view.

Because...