All the shaders we have seen so far have something in common; they are used for solid materials. If you want to improve the look of your game, transparent materials are often a good way to start. They can be used for anything from a fire effect to a glass window. Working with them, unfortunately, is slightly more complicated. Before rendering solid models, Unity orders them according to the distance from the camera (Z ordering) and skips all the triangles that are facing away from the camera (culling). When rendering transparent geometries, there are instances in which these two aspects can cause problems. This recipe will show you how to solve some of these issues when it comes to creating a transparent Surface Shader. This topic will be heavily revisited in Chapter 7, Fragment Shaders and Grab Passes, where realistic glass and water shaders will...
Unity 2018 Shaders and Effects Cookbook - Third Edition
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Unity 2018 Shaders and Effects Cookbook - Third Edition
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Overview of this book
Since their introduction to Unity, shaders have been seen as notoriously difficult to understand and implement in games. Complex mathematics has always stood in the way of creating your own shaders and attaining the level of realism you crave.
Unity 2018 Shaders and Effects Cookbook changes that by giving you a recipe-based guide to creating shaders using Unity. It will show you everything you need to know about vectors, how lighting is constructed with them, and how textures are used to create complex effects without the heavy math.
This book starts by teaching you how to use shaders without writing code with the post-processing stack. Then, you’ll learn how to write shaders from scratch, build up essential lighting, and finish by creating stunning screen effects just like those in high-quality 3D and mobile games. You'll discover techniques, such as normal mapping, image-based lighting, and animating your models inside a shader. We'll explore how to use physically based rendering to treat light the way it behaves in the real world. At the end, we’ll even look at Unity 2018’s new Shader Graph system.
With this book, what seems like a dark art today will be second nature by tomorrow.
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Current Title:
Unity 2018 Shaders and Effects Cookbook - Third Edition
Table of Contents (14 chapters)
Preface
Free Chapter
Post Processing Stack
Creating Your First Shader
Surface Shaders and Texture Mapping
Understanding Lighting Models
Physically-Based Rendering
Vertex Functions
Fragment Shaders and Grab Passes
Mobile Shader Adjustment
Screen Effects with Unity Render Textures
Gameplay and Screen Effects
Advanced Shading Techniques
Shader Graph
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