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

Shader basics

Today’s GPUs are powerful computing units. While the main job of older graphics cards was just to display the graphics memory (consisting of 2D images of the windows and their contents), the evolution to 3D has shifted some tasks from the CPU to the GPU.

The main “workhorses” in a GPU are the shader units. These are small and simple processing units with a limited instruction set, compared to the system processor. However, they utilize large registers and can operate on more than one data value at once, calculating multiple results in a single step. This is called Single Instruction, Multiple Data (SIMD). You may also have heard terms such as SSE as being included in your CPU (older readers may also remember the predecessors, MMX and 3DNow!). With SIMD, each one of the registers can load more than one value, usually two or four of them. Mathematical operations, such as multiplication or addition, are done on each pair of values in two registers...