URP Lit Shader解析（1）
【说明】
URP 版本为12.1.1，Lit Shader最复杂，明白了这个Shader，其他的都可以搞明白。
会拆分成一步步地解析，所有解析都写在源码中。
如有错误，欢迎指正！
Shader "Universal Render Pipeline/Lit"//文件位于Packages/Universal RP/Shaders/Lit，当前版本为12.1.1
{
Properties
{
// Specular vs Metallic workflow 高光和金属工作流，默认为金属工作流
_WorkflowMode("WorkflowMode", Float) = 1.0
//MainTexture特性将_BaseMap设置为主纹理，与材质的主纹理字段对应Material.mainTexture
[MainTexture] _BaseMap("Albedo", 2D) = "white" {}
//MainColor特性将_BaseColor设置为主颜色，与材质的颜色字段对应Material.color
[MainColor] _BaseColor("Color", Color) = (1,1,1,1)
//Alpha通道的截断值
_Cutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5
//光泽度
_Smoothness("Smoothness", Range(0.0, 1.0)) = 0.5
_SmoothnessTextureChannel("Smoothness texture channel", Float) = 0
//金属度
_Metallic("Metallic", Range(0.0, 1.0)) = 0.0
_MetallicGlossMap("Metallic", 2D) = "white" {}
//高光
_SpecColor("Specular", Color) = (0.2, 0.2, 0.2)
_SpecGlossMap("Specular", 2D) = "white" {}
//ToggleOff特性使该属性在面板上显示为开关的样式，在材质面板上位于Advanced Options
[ToggleOff] _SpecularHighlights("Specular Highlights", Float) = 1.0
[ToggleOff] _EnvironmentReflections("Environment Reflections", Float) = 1.0
//法线贴图
_BumpScale("Scale", Float) = 1.0
_BumpMap("Normal Map", 2D) = "bump" {}
//高度图
_Parallax("Scale", Range(0.005, 0.08)) = 0.005
_ParallaxMap("Height Map", 2D) = "black" {}
//环境光遮挡
_OcclusionStrength("Strength", Range(0.0, 1.0)) = 1.0
_OcclusionMap("Occlusion", 2D) = "white" {}
//自发光，指定使用HDR颜色，该颜色亮度值可以超过1
[HDR] _EmissionColor("Color", Color) = (0,0,0)
_EmissionMap("Emission", 2D) = "white" {}
//细节贴图，可以给表面更多的细节信息
_DetailMask("Detail Mask", 2D) = "white" {}
_DetailAlbedoMapScale("Scale", Range(0.0, 2.0)) = 1.0
_DetailAlbedoMap("Detail Albedo x2", 2D) = "linearGrey" {}
_DetailNormalMapScale("Scale", Range(0.0, 2.0)) = 1.0
//Normal特性添加在2D Property之前，可以检测关联的纹理贴图是否为法线贴图，如果不是，则会弹出修复提示
[Normal] _DetailNormalMap("Normal Map", 2D) = "bump" {}
// SRP batching compatibility for Clear Coat (Not used in Lit)
[HideInInspector] _ClearCoatMask("_ClearCoatMask", Float) = 0.0
[HideInInspector] _ClearCoatSmoothness("_ClearCoatSmoothness", Float) = 0.0
// Blending state 混合状态参数
_Surface("__surface", Float) = 0.0
_Blend("__blend", Float) = 0.0
_Cull("__cull", Float) = 2.0
[ToggleUI] _AlphaClip("__clip", Float) = 0.0
[HideInInspector] _SrcBlend("__src", Float) = 1.0
[HideInInspector] _DstBlend("__dst", Float) = 0.0
[HideInInspector] _ZWrite("__zw", Float) = 1.0
[ToggleUI] _ReceiveShadows("Receive Shadows", Float) = 1.0
// Editmode props
_QueueOffset("Queue offset", Float) = 0.0
// ObsoleteProperties
[HideInInspector] _MainTex("BaseMap", 2D) = "white" {}
[HideInInspector] _Color("Base Color", Color) = (1, 1, 1, 1)
[HideInInspector] _GlossMapScale("Smoothness", Float) = 0.0
[HideInInspector] _Glossiness("Smoothness", Float) = 0.0
[HideInInspector] _GlossyReflections("EnvironmentReflections", Float) = 0.0
//NoScaleOffset 在材质面板上隐藏纹理贴图的Tiling和Offset选项
[HideInInspector][NoScaleOffset]unity_Lightmaps("unity_Lightmaps", 2DArray) = "" {}
[HideInInspector][NoScaleOffset]unity_LightmapsInd("unity_LightmapsInd", 2DArray) = "" {}
[HideInInspector][NoScaleOffset]unity_ShadowMasks("unity_ShadowMasks", 2DArray) = "" {}
}
SubShader
{
// Universal Pipeline tag is required. If Universal render pipeline is not set in the graphics settings
// this Subshader will fail. One can add a subshader below or fallback to Standard built-in to make this
// material work with both Universal Render Pipeline and Builtin Unity Pipeline
//使用URP管线，需要指定渲染管线为UniversalPipeline，否则这个SubShader将失败。如果想使该材质同时在URP和内置管线中运行，可在下面添加一个新的SubShader或者Fallback到内置管线
Tags{"RenderType" = "Opaque" "RenderPipeline" = "UniversalPipeline" "UniversalMaterialType" = "Lit" "IgnoreProjector" = "True" "ShaderModel"="4.5"}//指定ShaderModel为4.5，平台需要支持OpenGL ES 3.1
LOD 300
//连续七个Pass，分为是前向渲染、阴影投射、GBuffer、深度、相机法线、光照贴图、2D渲染
// ------------------------------------------------------------------
// Forward pass. Shades all light in a single pass. GI + emission + Fog
Pass
{
// Lightmode matches the ShaderPassName set in UniversalRenderPipeline.cs. SRPDefaultUnlit and passes with
// no LightMode tag are also rendered by Universal Render Pipeline
Name "ForwardLit"
Tags{"LightMode" = "UniversalForward"}
Blend[_SrcBlend][_DstBlend]
ZWrite[_ZWrite]
Cull[_Cull]
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
// -------------------------------------
// Material Keywords
#pragma shader_feature_local _NORMALMAP
#pragma shader_feature_local _PARALLAXMAP
#pragma shader_feature_local _RECEIVE_SHADOWS_OFF
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _SURFACE_TYPE_TRANSPARENT
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _ALPHAPREMULTIPLY_ON
#pragma shader_feature_local_fragment _EMISSION
#pragma shader_feature_local_fragment _METALLICSPECGLOSSMAP
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature_local_fragment _OCCLUSIONMAP
#pragma shader_feature_local_fragment _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature_local_fragment _ENVIRONMENTREFLECTIONS_OFF
#pragma shader_feature_local_fragment _SPECULAR_SETUP
// -------------------------------------
// Universal Pipeline keywords
#pragma multi_compile _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
#pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
#pragma multi_compile_fragment _ _ADDITIONAL_LIGHT_SHADOWS
#pragma multi_compile_fragment _ _REFLECTION_PROBE_BLENDING
#pragma multi_compile_fragment _ _REFLECTION_PROBE_BOX_PROJECTION
#pragma multi_compile_fragment _ _SHADOWS_SOFT
#pragma multi_compile_fragment _ _SCREEN_SPACE_OCCLUSION
#pragma multi_compile_fragment _ _DBUFFER_MRT1 _DBUFFER_MRT2 _DBUFFER_MRT3
#pragma multi_compile_fragment _ _LIGHT_LAYERS
#pragma multi_compile_fragment _ _LIGHT_COOKIES
#pragma multi_compile _ _CLUSTERED_RENDERING
// -------------------------------------
// Unity defined keywords
#pragma multi_compile _ LIGHTMAP_SHADOW_MIXING
#pragma multi_compile _ SHADOWS_SHADOWMASK
#pragma multi_compile _ DIRLIGHTMAP_COMBINED
#pragma multi_compile _ LIGHTMAP_ON
#pragma multi_compile _ DYNAMICLIGHTMAP_ON
#pragma multi_compile_fog
#pragma multi_compile_fragment _ DEBUG_DISPLAY
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma instancing_options renderinglayer
#pragma multi_compile _ DOTS_INSTANCING_ON
#pragma vertex LitPassVertex
#pragma fragment LitPassFragment
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitForwardPass.hlsl"
ENDHLSL
}
Pass
{
Name "ShadowCaster"
Tags{"LightMode" = "ShadowCaster"}
ZWrite On
ZTest LEqual
ColorMask 0
Cull[_Cull]
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
// -------------------------------------
// Material Keywords
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma multi_compile _ DOTS_INSTANCING_ON
// -------------------------------------
// Universal Pipeline keywords
// This is used during shadow map generation to differentiate between directional and punctual light shadows, as they use different formulas to apply Normal Bias
#pragma multi_compile_vertex _ _CASTING_PUNCTUAL_LIGHT_SHADOW
#pragma vertex ShadowPassVertex
#pragma fragment ShadowPassFragment
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/ShadowCasterPass.hlsl"
ENDHLSL
}
Pass
{
// Lightmode matches the ShaderPassName set in UniversalRenderPipeline.cs. SRPDefaultUnlit and passes with
// no LightMode tag are also rendered by Universal Render Pipeline
Name "GBuffer"
Tags{"LightMode" = "UniversalGBuffer"}
ZWrite[_ZWrite]
ZTest LEqual
Cull[_Cull]
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
// -------------------------------------
// Material Keywords
#pragma shader_feature_local _NORMALMAP
#pragma shader_feature_local_fragment _ALPHATEST_ON
//#pragma shader_feature_local_fragment _ALPHAPREMULTIPLY_ON
#pragma shader_feature_local_fragment _EMISSION
#pragma shader_feature_local_fragment _METALLICSPECGLOSSMAP
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature_local_fragment _OCCLUSIONMAP
#pragma shader_feature_local _PARALLAXMAP
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature_local_fragment _ENVIRONMENTREFLECTIONS_OFF
#pragma shader_feature_local_fragment _SPECULAR_SETUP
#pragma shader_feature_local _RECEIVE_SHADOWS_OFF
// -------------------------------------
// Universal Pipeline keywords
#pragma multi_compile _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
//#pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
//#pragma multi_compile _ _ADDITIONAL_LIGHT_SHADOWS
#pragma multi_compile_fragment _ _REFLECTION_PROBE_BLENDING
#pragma multi_compile_fragment _ _REFLECTION_PROBE_BOX_PROJECTION
#pragma multi_compile_fragment _ _SHADOWS_SOFT
#pragma multi_compile_fragment _ _DBUFFER_MRT1 _DBUFFER_MRT2 _DBUFFER_MRT3
#pragma multi_compile_fragment _ _LIGHT_LAYERS
#pragma multi_compile_fragment _ _RENDER_PASS_ENABLED
// -------------------------------------
// Unity defined keywords
#pragma multi_compile _ LIGHTMAP_SHADOW_MIXING
#pragma multi_compile _ SHADOWS_SHADOWMASK
#pragma multi_compile _ DIRLIGHTMAP_COMBINED
#pragma multi_compile _ LIGHTMAP_ON
#pragma multi_compile _ DYNAMICLIGHTMAP_ON
#pragma multi_compile_fragment _ _GBUFFER_NORMALS_OCT
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma instancing_options renderinglayer
#pragma multi_compile _ DOTS_INSTANCING_ON
#pragma vertex LitGBufferPassVertex
#pragma fragment LitGBufferPassFragment
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitGBufferPass.hlsl"
ENDHLSL
}
Pass
{
Name "DepthOnly"
Tags{"LightMode" = "DepthOnly"}
ZWrite On
ColorMask 0
Cull[_Cull]
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
#pragma vertex DepthOnlyVertex
#pragma fragment DepthOnlyFragment
// -------------------------------------
// Material Keywords
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma multi_compile _ DOTS_INSTANCING_ON
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/DepthOnlyPass.hlsl"
ENDHLSL
}
// This pass is used when drawing to a _CameraNormalsTexture texture
Pass
{
Name "DepthNormals"
Tags{"LightMode" = "DepthNormals"}
ZWrite On
Cull[_Cull]
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
#pragma vertex DepthNormalsVertex
#pragma fragment DepthNormalsFragment
// -------------------------------------
// Material Keywords
#pragma shader_feature_local _NORMALMAP
#pragma shader_feature_local _PARALLAXMAP
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma multi_compile _ DOTS_INSTANCING_ON
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitDepthNormalsPass.hlsl"
ENDHLSL
}
// This pass it not used during regular rendering, only for lightmap baking.
Pass
{
Name "Meta"
Tags{"LightMode" = "Meta"}
Cull Off
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
#pragma vertex UniversalVertexMeta
#pragma fragment UniversalFragmentMetaLit
#pragma shader_feature EDITOR_VISUALIZATION
#pragma shader_feature_local_fragment _SPECULAR_SETUP
#pragma shader_feature_local_fragment _EMISSION
#pragma shader_feature_local_fragment _METALLICSPECGLOSSMAP
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _SPECGLOSSMAP
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitMetaPass.hlsl"
ENDHLSL
}
Pass
{
Name "Universal2D"
Tags{ "LightMode" = "Universal2D" }
Blend[_SrcBlend][_DstBlend]
ZWrite[_ZWrite]
Cull[_Cull]
HLSLPROGRAM
#pragma exclude_renderers gles gles3 glcore
#pragma target 4.5
#pragma vertex vert
#pragma fragment frag
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _ALPHAPREMULTIPLY_ON
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/Utils/Universal2D.hlsl"
ENDHLSL
}
}
SubShader
{
// Universal Pipeline tag is required. If Universal render pipeline is not set in the graphics settings
// this Subshader will fail. One can add a subshader below or fallback to Standard built-in to make this
// material work with both Universal Render Pipeline and Builtin Unity Pipeline
//同上一个SubShader一样，区别是ShaderModel为2.0，在unity所有支持的平台上都能够工作，如果上一个SubShader不能运行，则使用这个SubShader
Tags{"RenderType" = "Opaque" "RenderPipeline" = "UniversalPipeline" "UniversalMaterialType" = "Lit" "IgnoreProjector" = "True" "ShaderModel"="2.0"}
LOD 300
// ------------------------------------------------------------------
// Forward pass. Shades all light in a single pass. GI + emission + Fog
Pass
{
// Lightmode matches the ShaderPassName set in UniversalRenderPipeline.cs. SRPDefaultUnlit and passes with
// no LightMode tag are also rendered by Universal Render Pipeline
Name "ForwardLit"
Tags{"LightMode" = "UniversalForward"}
Blend[_SrcBlend][_DstBlend]
ZWrite[_ZWrite]
Cull[_Cull]
HLSLPROGRAM
#pragma only_renderers gles gles3 glcore d3d11
#pragma target 2.0
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma instancing_options renderinglayer
// -------------------------------------
// Material Keywords
#pragma shader_feature_local _NORMALMAP
#pragma shader_feature_local _PARALLAXMAP
#pragma shader_feature_local _RECEIVE_SHADOWS_OFF
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _SURFACE_TYPE_TRANSPARENT
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _ALPHAPREMULTIPLY_ON
#pragma shader_feature_local_fragment _EMISSION
#pragma shader_feature_local_fragment _METALLICSPECGLOSSMAP
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature_local_fragment _OCCLUSIONMAP
#pragma shader_feature_local_fragment _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature_local_fragment _ENVIRONMENTREFLECTIONS_OFF
#pragma shader_feature_local_fragment _SPECULAR_SETUP
// -------------------------------------
// Universal Pipeline keywords
#pragma multi_compile _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
#pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
#pragma multi_compile_fragment _ _ADDITIONAL_LIGHT_SHADOWS
#pragma multi_compile_fragment _ _SHADOWS_SOFT
#pragma multi_compile_fragment _ _SCREEN_SPACE_OCCLUSION
#pragma multi_compile_fragment _ _DBUFFER_MRT1 _DBUFFER_MRT2 _DBUFFER_MRT3
#pragma multi_compile_fragment _ _REFLECTION_PROBE_BLENDING
#pragma multi_compile_fragment _ _REFLECTION_PROBE_BOX_PROJECTION
#pragma multi_compile_fragment _ _LIGHT_LAYERS
#pragma multi_compile_fragment _ _LIGHT_COOKIES
#pragma multi_compile _ _CLUSTERED_RENDERING
// -------------------------------------
// Unity defined keywords
#pragma multi_compile _ LIGHTMAP_SHADOW_MIXING
#pragma multi_compile _ SHADOWS_SHADOWMASK
#pragma multi_compile _ DIRLIGHTMAP_COMBINED
#pragma multi_compile _ LIGHTMAP_ON
#pragma multi_compile_fog
#pragma multi_compile_fragment _ DEBUG_DISPLAY
#pragma vertex LitPassVertex
#pragma fragment LitPassFragment
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitForwardPass.hlsl"
ENDHLSL
}
Pass
{
Name "ShadowCaster"
Tags{"LightMode" = "ShadowCaster"}
ZWrite On
ZTest LEqual
ColorMask 0
Cull[_Cull]
HLSLPROGRAM
#pragma only_renderers gles gles3 glcore d3d11
#pragma target 2.0
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
// -------------------------------------
// Material Keywords
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
// -------------------------------------
// Universal Pipeline keywords
// This is used during shadow map generation to differentiate between directional and punctual light shadows, as they use different formulas to apply Normal Bias
#pragma multi_compile_vertex _ _CASTING_PUNCTUAL_LIGHT_SHADOW
#pragma vertex ShadowPassVertex
#pragma fragment ShadowPassFragment
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/ShadowCasterPass.hlsl"
ENDHLSL
}
Pass
{
Name "DepthOnly"
Tags{"LightMode" = "DepthOnly"}
ZWrite On
ColorMask 0
Cull[_Cull]
HLSLPROGRAM
#pragma only_renderers gles gles3 glcore d3d11
#pragma target 2.0
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#pragma vertex DepthOnlyVertex
#pragma fragment DepthOnlyFragment
// -------------------------------------
// Material Keywords
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/DepthOnlyPass.hlsl"
ENDHLSL
}
// This pass is used when drawing to a _CameraNormalsTexture texture
Pass
{
Name "DepthNormals"
Tags{"LightMode" = "DepthNormals"}
ZWrite On
Cull[_Cull]
HLSLPROGRAM
#pragma only_renderers gles gles3 glcore d3d11
#pragma target 2.0
#pragma vertex DepthNormalsVertex
#pragma fragment DepthNormalsFragment
// -------------------------------------
// Material Keywords
#pragma shader_feature_local _NORMALMAP
#pragma shader_feature_local _PARALLAXMAP
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
//--------------------------------------
// GPU Instancing
#pragma multi_compile_instancing
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitDepthNormalsPass.hlsl"
ENDHLSL
}
// This pass it not used during regular rendering, only for lightmap baking.
Pass
{
Name "Meta"
Tags{"LightMode" = "Meta"}
Cull Off
HLSLPROGRAM
#pragma only_renderers gles gles3 glcore d3d11
#pragma target 2.0
#pragma vertex UniversalVertexMeta
#pragma fragment UniversalFragmentMetaLit
#pragma shader_feature EDITOR_VISUALIZATION
#pragma shader_feature_local_fragment _SPECULAR_SETUP
#pragma shader_feature_local_fragment _EMISSION
#pragma shader_feature_local_fragment _METALLICSPECGLOSSMAP
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
#pragma shader_feature_local_fragment _SPECGLOSSMAP
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitMetaPass.hlsl"
ENDHLSL
}
Pass
{
Name "Universal2D"
Tags{ "LightMode" = "Universal2D" }
Blend[_SrcBlend][_DstBlend]
ZWrite[_ZWrite]
Cull[_Cull]
HLSLPROGRAM
#pragma only_renderers gles gles3 glcore d3d11
#pragma target 2.0
#pragma vertex vert
#pragma fragment frag
#pragma shader_feature_local_fragment _ALPHATEST_ON
#pragma shader_feature_local_fragment _ALPHAPREMULTIPLY_ON
#include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
#include "Packages/com.unity.render-pipelines.universal/Shaders/Utils/Universal2D.hlsl"
ENDHLSL
}
}
FallBack "Hidden/Universal Render Pipeline/FallbackError"//回退到FallBackError，该文件在Packages/Universal RP/Shaders/Utils/FallbackError.shader
CustomEditor "UnityEditor.Rendering.Universal.ShaderGUI.LitShader"//自定义的材质编辑界面
}