《Unity着色器圣经》3.0.4 | 数字与滑条类型

目录索引

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译文

数字（number）与滑条（slider）两种类型的属性允许我们在着色器中添加数值类型的变量。假设我们打算创建一个实现光照功能的着色器，“0”代表亮度为 0%，“1”代表亮度为 100% ，那么我们就可以创建一个范围为0到1的滑条类型属性来表示亮度。

声明数字与滑条类型的语法如下所示：

// name ("display name", Range(min, max)) = defaultValue 
// name ("display name", Float) = defaultValue 
// name ("display name", Int) = defaultValue 
Shader "InspectorPath/shaderName" 
{ 
    Properties 
    { 
        _Specular ("Specular", Range(0.0, 1.1)) = 0.3 
        _Factor ("Color Factor", Float) = 0.3 
        _Cid ("Color id", Int) = 2 
    } 
}

在上面的例子中，我们声明了三个属性，分别是名为“_Specular”的范围类型属性、名为“_Factor”的浮点数类型属性与名为“_Cid”的整型类型属性。

原文对照

These types of properties allow us to add numerical values to our shader. Let’s suppose that we want to create a shader with functions of illumination, where “zero” equals 0% illumination and “one” equals 100% illumination. We can create a range for this (e.g. Range (min, max)) and configure the minimum, maximum and default illumination values.

The following syntax declares numbers and sliders in our shader:

// name ("display name", Range(min, max)) = defaultValue 
// name ("display name", Float) = defaultValue 
// name ("display name", Int) = defaultValue 
Shader "InspectorPath/shaderName" 
{ 
    Properties 
    { 
        _Specular ("Specular", Range(0.0, 1.1)) = 0.3 
        _Factor ("Color Factor", Float) = 0.3 
        _Cid ("Color id", Int) = 2 
    } 
}

In the previous example we declared three properties, a “floating range” type called _Specular, another “floating scale” type called _Factor, and finally, an “integer” type called _Cid.