Book Image

C++ Game Animation Programming - Second Edition

By : Michael Dunsky, Gabor Szauer
4.5 (2)
Book Image

C++ Game Animation Programming - Second Edition

4.5 (2)
By: Michael Dunsky, Gabor Szauer

Overview of this book

If you‘re fascinated by the complexities of animating video game characters and are curious about the transformation of model files into 3D avatars and NPCs that can explore virtual worlds, then this book is for you. In this new edition, you’ll learn everything you need to know about game animation, from a simple graphical window to a large crowd of smoothly animated characters. First, you’ll learn how to use modern high-performance graphics, dig into the details of how virtual characters are stored, and load the models and animations into a minimalistic game-like application. Then, you’ll get an overview of the components of an animation system, how to play the animations and combine them, and how to blend from one animation into another. You’ll also get an introduction to topics that will make your programming life easier, such as debugging your code or stripping down the graphical output. By the end of this book, you’ll have gained deep insights into all the parts of game animation programming and how they work together, revealing the magic that brings life to the virtual worlds on your screen.
Table of Contents (22 chapters)
1
Part 1:Building a Graphics Renderer
7
Part 2: Mathematics Roundup
10
Part 3: Working with Models and Animations
15
Part 4: Advancing Your Code to the Next Level

An analysis of the glTF file format

The glTF file format was created with efficiency in the transmission and loading of 3D scenes
and models in mind. The file format is an open standard, supports external files and embedded, Base64-encoded data, and can be easily extended to adopt new features.

Figure 8.1 shows the general hierarchy of the glTF file format. Even if it contains only a small number of object types, loading and interpreting a file can be a complex task.

Figure 8.1: An overview of the glTF 2.0 file format

Figure 8.1: An overview of the glTF 2.0 file format

We will take a closer look at these objects and their function in the file format. Some of the descriptions may sound abstract, but these will be clarified once we look at an glTF example file in the Exploring an example glTF file section.

The following list describes the main elements of a glTF file:

  • Scene: The top element of every glTF file is the scene. The scene is the anchor for all other elements, creating a hierarchical...