Book Image

Unity 5.x Shaders and Effects Cookbook

By : Zucconi
Book Image

Unity 5.x Shaders and Effects Cookbook

By: Zucconi

Overview of this book

Since their introduction to Unity, Shaders have been notoriously difficult to understand and implement in games: complex mathematics have always stood in the way of creating your own Shaders and attaining that level of realism you crave. With Shaders, you can transform your game into a highly polished, refined product with Unity’s post-processing effects. Unity Shaders and Effects Cookbook is the first of its kind to bring you the secrets of creating Shaders for Unity3D—guiding you through the process of understanding vectors, how lighting is constructed with them, and also how textures are used to create complex effects without the heavy math. We’ll start with essential lighting and finishing up by creating stunning screen Effects just like those in high quality 3D and mobile games. You’ll discover techniques including normal mapping, image-based lighting, and how to animate your models inside a Shader. We’ll explore the secrets behind some of the most powerful techniques, such as physically based rendering! With Unity Shaders and Effects Cookbook, what seems like a dark art today will be second nature by tomorrow.
Table of Contents (12 chapters)
11
Index

Introduction


Simulating the way light works is a very challenging and resource-consuming task. For many years, video games have used very simple lighting models that, despite lacking realism, were very believable. Even if most 3D engines are now using physically-based renderers, it is worth exploring some simpler techniques. The ones presented in this chapter are reasonably realistic and widely adopted on devices with low resources such as mobile phones. Understanding these simple lighting models is also essential if you want to create your own one.