105 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			105 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
## 资料
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- [ ] 游戏诞生之日09 - 美术篇 卡通渲染着色器 UTS2 https://zhuanlan.zhihu.com/p/137288013
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- [ ] MMD联动Unity学习笔记 Vol.42 UTS2进阶(慎入长篇多图预警)https://www.bilibili.com/read/cv3347514
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- [ ] 官方文档:https://github.com/unity3d-jp/UnityChanToonShaderVer2_Project/blob/release/urp/2.3.0/Documentation~/index.md
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- [ ] 官方文档——属性解释:https://github.com/unity3d-jp/UnityChanToonShaderVer2_Project/blob/release/urp/2.3.0/Documentation~/Props_en.md
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## 总览
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没有后处理效果
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两种着色方式:
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DoubleShadeWithFeather:UTS/UniversalToon 的标准工作流程模式。允许 2 种阴影颜色(双阴影颜色)和颜色之间的渐变(羽化)。
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ShadingGradeMap:更高级的工作流程模式。除了 DoubleShadeWithFeather 功能之外,此着色器还可以保存称为 ShadingGradeMap 的特殊贴图。
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- UniversalToonInput.hlsl:定义各种变量与资料,实现采样AO贴图`SampleOcclusion()`与初始化Lit表面数据`InitializeStandardLitSurfaceData()`
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- UniversalToonHead.hlsl:定义了一些宏与函数,雾、坐标转换、线性空间与GammaSpace转换相关。
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## 光照
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## Pass
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顺序为:
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1. Outline
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2. ForwardLit
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3. ShadowCaster
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4. DepthOnly
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模板测试语法:
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```c#
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Stencil
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{
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    Ref[_StencilNo]             //设置渲染的模板缓存值,0~255
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    Comp[_StencilComp]          //模板测试的通过条件,有除了equal,还有Greater、Less、Always、Never等,类似ZTest。
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    Pass[_StencilOpPass]        //表示通过模板测试和Z测试(注意是都通过)的像素,怎么处置它的模板值。
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    Fail[_StencilOpFail]        //表示通过了模板测试但没通过Z测试的像素,怎么处置它的模板值。
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}
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```
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### Outline
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```c#
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Tags {"LightMode" = "SRPDefaultUnlit"}:使用这个LightMode标签值在渲染物体时绘制一个额外的Pass。也是URP光照模式的默认值。
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Cull [_SRPDefaultUnlitColMode]
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ColorMask [_SPRDefaultUnlitColorMask]
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Blend SrcAlpha OneMinusSrcAlpha
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Stencil
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{
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    Ref[_StencilNo]
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    Comp[_StencilComp]
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    Pass[_StencilOpPass]
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    Fail[_StencilOpFail]
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}
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```
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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#include "UniversalToonHead.hlsl"
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#include "UniversalToonOutline.hlsl"
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### ForwardLit
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```c#
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Tags{"LightMode" = "UniversalForward"}:URP前向渲染
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ZWrite[_ZWriteMode]
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Cull[_CullMode]
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Blend SrcAlpha OneMinusSrcAlpha
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Stencil {
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    Ref[_StencilNo]
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    Comp[_StencilComp]
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    Pass[_StencilOpPass]
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    Fail[_StencilOpFail]
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}
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/Shaders/LitForwardPass.hlsl"
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#include "UniversalToonHead.hlsl"
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#include "UniversalToonBody.hlsl"
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```
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### ShadowCaster
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渲染阴影贴图
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```c#
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Name "ShadowCaster"
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Tags{"LightMode" = "ShadowCaster"}
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ZWrite On
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ZTest LEqual
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Cull[_CullMode]
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#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/Shaders/ShadowCasterPass.hlsl"
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```
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### DepthOnly
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渲染深度缓存
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```c#
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Tags{"LightMode" = "DepthOnly"}
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ZWrite On
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ColorMask 0
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Cull[_CullMode]
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#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/Shaders/DepthOnlyPass.hlsl"
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``` |