Legacy Documentation: Version 2018.2 (Go to current version)
Writing Shaders
Usage and Performance of Built-in Shaders
Other Versions

Legacy Shaders

Prior to the introduction of the Physically Based Standard Shader, Unity was supplied with more than eighty built-in shadersA small script that contains the mathematical calculations and algorithms for calculating the Color of each pixel rendered, based on the lighting input and the Material configuration. More info
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which each served different purposes. These shaders are still included and available for use in Unity for backwards compatibility but we recommend you use the Standard ShaderA built-in shader for rendering real-world objects such as stone, wood, glass, plastic and metal. Supports a wide range of shader types and combinations. More info
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wherever possible for new projects.

This section begins by explaining how to use the legacy built-in shaders to maximum effect. The remainder of the section details all the available shaders, grouped into related “families”.

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