Book Image

Unity 5.x Shaders and Effects Cookbook

By : Alan Zucconi
Book Image

Unity 5.x Shaders and Effects Cookbook

By: Alan 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 (16 chapters)
Unity 5.x Shaders and Effects Cookbook
Credits
About the Authors
www.PacktPub.com
Preface
Index

Creating an old movie screen effect


Many games are set in different times. Some take place in fantasy worlds or future sci-fi worlds, and some even take place in the old west, where film cameras were just being developed and the movies that people watched were black and white or sometimes tinted with what is called a sepia effect. The look is very distinct, and we are going to replicate this look using a screen effect in Unity.

There are a few steps to achieve this look, and just to make the whole screen black and white or grayscale, we need to break down this effect into its component parts. If we analyze some reference footage of an old movie, we can begin to do this. Let's take a look at the following image and break down the elements that make up the old movie look:

We constructed this image using a few reference images found online. It is always a good idea to try and utilize Photoshop to construct images like this to aid you in creating a plan for your new screen effect. Performing this...