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Unity 5  Game Optimization

You're reading from   Unity 5 Game Optimization Master performance optimization for Unity3D applications with tips and techniques that cover every aspect of the Unity3D Engine

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Product type Paperback
Published in Nov 2015
Publisher Packt
ISBN-13 9781785884580
Length 296 pages
Edition 1st Edition
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Chris Dickinson Chris Dickinson
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Chris Dickinson
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Toc

Table of Contents (10) Chapters Close

Materials and Shaders

Shaders are short programs which define how the GPU should render incoming vertex and pixel data. A Shader on its own does not have the necessary knowledge of state to accomplish anything of value. It requires inputs such as diffuse textures, normal maps, colors, and so on, and must decide what Render State variables are required in order to complete its intended task.

Unity's Material system is essential to providing this information to our Shaders. Ultimately, this just means a Shader is dependent upon a Material in order to be used to render an object. Every Shader needs a Material, and every Material must have a Shader. Even newly imported meshes that are introduced into the Scene without any assigned Materials are automatically assigned a default (hidden) Material, which gives them a basic diffuse Shader and a white coloration. So, there is no way of getting around this relationship.

Note

A single Material can only support a single Shader. The use of multiple...

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