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  • Book Overview & Buying Unity 5.x Shaders and Effects Cookbook
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Unity 5.x Shaders and Effects Cookbook

Unity 5.x Shaders and Effects Cookbook - Second Edition

By : Alan Zucconi
4.1 (9)
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Unity 5.x Shaders and Effects Cookbook

Unity 5.x Shaders and Effects Cookbook

4.1 (9)
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 (12 chapters)
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11
Index

Creating mirrors and reflective surfaces

Specular materials reflect lights when objects are viewed from certain angles. Unfortunately, even the Fresnel reflection, which is one of the most accurate models, does not correctly reflect lights from nearby objects. The lighting models examined in the previous chapters took into account only light sources, but ignored light that is reflected from other surfaces. With what you've learned about shaders so far, making a mirror is simply not possible. Global illumination makes this possible by providing PBR shaders with information about their surroundings. This allows objects to have not just specular highlights, but also real reflections, which depend on the other objects around them. Real-time reflections are very costly and require manual setting up and tweaking in order to work. When done properly, they can be used to create mirror-like surfaces, as seen in the following picture:

Creating mirrors and reflective surfaces

Getting ready

This recipe will not feature any new shader....

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Unity 5.x Shaders and Effects Cookbook
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