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 : Mask-写入缓冲的物体,渲染队列要比Out优先(Things that want to write to the buffer,Render Queue Less than "Out"):
  Stencil {
  Ref[_StencilChannel]
  Comp Always
  Pass Replace
  Fail Replace
  }
  Out-从缓冲读取的物体(Read from the buffer)
  Stencil {
  Ref[_StencilChannel]
  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）

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

• EnbleRim ：启用边缘光
• BlendRim : 颜色插值
• RimColor
• RimPower : 强度
• RimStep
• RimFeather

Outline

• EnableOutline ：启用描边
• UseSmoothNormal : 使用平滑法线(ModelOutlineImporter: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......

This will stop SPRBatch.

Use ComstomRenderer,the Rendering order like this:
Object1.Pass1-
Objcet2.Pass1-
Object1.Pass2-
Object2.Pass2......

How to Set project:

1.Create CustomForwardRenderer Asset.
Assets/Create/Rendering/Universal Render Pipeline/ToonForward Renderer

2.Setup Pipeline Asset

Node1 : Use Assembly Definition Reference to access urp package.
Node2 : SRP Batch does not support Skin Mesh yet.

Reference

https://github.com/unity3d-jp/UnityChanToonShaderVer2_Project
https://github.com/Jason-Ma-233/JasonMaToonRenderPipeline
https://github.com/you-ri/LiliumToonGraph
https://github.com/Kink3d/kShading
https://unity.cn/projects/china-unity-tech-week_linruofeng

Licenses

MIT

"Assets/UnityChan/License"

© Unity Technologies Japan/UCL