Built-in ShadersThe source code to Unity's built-in shaders. |  |
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Source code for all built-in shaders in Unity can be found here: http://unity3d.com/download_unity/builtin_shaders.zip. It makes a great starting point for learning to code shaders from scratch.
Note
You don't need to include these in your project to have access to them - they are already there (hence the Built-in name).
