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Unity Engine

Set shader variables with material property values

Use material properties to set variables in ShaderLab code or in HLSL code.
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Using material properties to set variables in ShaderLab code

To set the value of a variable in your ShaderLab code from a material property, put the material property name in square brackets in your ShaderLab code.
This example code demonstrates the syntax for using a material property to set the 
units
value of the ShaderLab 
Offset
command.
Shader "Examples/MaterialPropertyShaderLab"{    Properties    {        // Change this value in the Material Inspector to affect the value of the Offset command        _OffsetUnitScale ("Offset unit scale", Integer) = 1    }    SubShader    {        // The code that defines the rest of the SubShader goes here        Pass        {            Offset 0, [_OffsetUnitScale]           // The code that defines the rest of the Pass goes here        }    }}

Using material properties to set variables in HLSL code

To set the value of a variable in HLSL code using a material property, give the material property the same name as the shader property.
You can see this technique in the following articles, which include working code examples: