URP Toon Shader

Introduction
Properties
- SurfaceOptions
- Base
- Shadow
- Specular
- Rim
- Outline
- AdvancedOptions
Multi Pass Batch
Reference
Licenses

Introduction

基于URP的通用卡通着色器，使用URP标准的PBR模型（Minimalist CookTorrance BRDF）进行改造，纯代码实现，没有使用ShaderGraph,兼容SPR Batch.
Universal Toon shader based on URP , use PBR lighting（Minimalist CookTorrance BRDF） in URP,use code without ShaderGraph,SPR Batch Compatible.

Unity 2020.2.0+、URP 10.2.2+

Properties

SurfaceOptions

Workflow Mode : Specular or Metallic
SurfaceType : Opaque or Transparent
Render Face : Front Back Both (For Forward Pass)
Alpha Clipping : ClipMask(裁剪遮罩)，Threshold(阈值)
Stencil : 模板测试，用于实现眼睛的遮挡效果，参考UTS(Stencil Test,used to achieve transparent effects for toon eyes,reference from UTS)
Stencil Type (Set Material RenderQueue to Mask < Out).
Mask
Stencil {
Ref[_StencilRef]
Comp Always
Pass Replace
Fail Replace
}
Out
Stencil {
Ref[_StencilRef]
Comp NotEqual
Pass Keep
Fail Keep
}
Stencil Channel : 1-255

Base

Shadow

UseRampMapShadow : 使用RampMap控制阴影衰减。
VOffset : RampMap采样的V坐标
Shadow1Color ：第一层阴影颜色
Shadow2Color ：第二层阴影颜色
Shadow1Step : 第一层阴影阈值
Shadow1Feather : 第一层阴影羽化值
Shadow2Step : 第二层阴影阈值
Shadow2Feather : 第二层阴影羽化值
EnableInShadowMap : 固定阴影贴图
Receive Shadow : 接收阴影 (ShadowCoord)
CastHairShadowMask (Hair Material) : 投射头发阴影遮罩
ReceiveHairShadowMask (Face Material) : 接收头发阴影遮罩

Specular

Specular
SpecularStep : 高光阈值
SpecularFeather : 高光羽化
Smoothness : 光滑度
HairSpecular : 各向异性头发高光
HairShiftMap : 切线偏移图、偏移强度
SpecularShift : 第一层高光偏移量
SpecularShiftSec : 第二层高光偏移量
SpecularSecMul : 第二层高光强度（*Specular)
EnablesSpecularHighlights : 是否使用高光

Rim

BlendRim : 颜色插值
RimColor
RimPower : 强度
RimStep
RimFeather

Outline

EnableOutline ：启用描边
UseSmoothNormal : (if use this feature, you need to check "Read/Write Enbale" in the Import Setting of the model, and then rename the model to "XXX_ol":https://github.com/Jason-Ma-233/JasonMaToonRenderPipeline#%E5%B9%B3%E6%BB%91%E6%B3%95%E7%BA%BF%E5%AF%BC%E5%85%A5%E5%B7%A5%E5%85%B7ModelOutlineImporter)
OutlineColor
OutlineWidth

AdvancedOptions

Environment Reflections : 是否接收反射
Enable GPU Instancing : 使用GPU Instancing合批
RenderQueue : 渲染队列

Multi Pass Batch

In the default URP, if render multiple pass shaders, the Rendering order like this:
Object1.Pass1-
Objcet1.Pass2-
Object2.Pass1-
Object2.Pass2......

It will stop SPRBatch.

We can change the Rendering order like this:
Object1.Pass1-
Objcet2.Pass1-
Object1.Pass2-
Object2.Pass2......