Unity contains several files that can be used by your shader programs to bring in predefined variables and helper functions. This is done by the standard #include
directive, e.g.:
CGPROGRAM
// ...
#include "UnityCG.cginc"
// ...
ENDCG
Shader include files in Unity are with .cginc
extension, and the built-in ones are:
HLSLSupport.cginc
- (automatically included) Helper macros and definitions for cross-platform shaderA program that runs on the GPU. More infoUnityShaderVariables.cginc
- (automatically included) Commonly used global variables.UnityCG.cginc
- commonly used helper functions.AutoLight.cginc
- lighting & shadowing functionality, e.g. surface shadersA streamlined way of writing shaders for the Built-in Render Pipeline. More infoLighting.cginc
- standard surface shader lighting models; automatically included when you’re writing surface shaders.TerrainEngine.cginc
- helper functions for TerrainThe landscape in your scene. A Terrain GameObject adds a large flat plane to your scene and you can use the Terrain’s Inspector window to create a detailed landscape. More infoThese files are found inside Unity application ({unity install path}/Data/CGIncludes/UnityCG.cginc on Windows, /Applications/Unity/Unity.app/Contents/CGIncludes/UnityCG.cginc on Mac), if you want to take a look at what exactly is done in any of the helper code.
This file is automatically included when compiling CGPROGRAM shaders (but not included for HLSLPROGRAM ones). It declares various preprocessor macros to aid in multi-platform shader development.
This file is automatically included when compiling CGPROGRAM shaders (but not included for HLSLPROGRAM ones). It declares various built-in global variables that are commonly used in shaders.
This file is often included in Shader objectsAn instance of the Shader class, a Shader object is container for shader programs and GPU instructions, and information that tells Unity how to use them. Use them with materials to determine the appearance of your scene. More info
See in Glossary. It declares many built-in helper functions and data structures.
appdata_base
: vertex shaderA program that runs on each vertex of a 3D model when the model is being rendered. More infoappdata_tan
: vertex shader input with position, normal, tangent, one texture coordinate.appdata_full
: vertex shader input with position, normal, tangent, vertex color and two texture coordinates.appdata_img
: vertex shader input with position and one texture coordinate.When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. This information might be about you, your preferences or your device and is mostly used to make the site work as you expect it to. The information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different category headings to find out more and change our default settings. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer.
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