title: unity-shader-滑稽一下unity内置pbr-Standard着色器
categories: Unity3d
tags: [unity, shader standard, pbr]
date: 2019-03-28 19:53:12
comments: false
純屬娛樂, 加個溶解的消失的效果
效果
unity 内置的 shader 去從官網中下
這裡用的版本是 unity2018.2.8f1
改造流程
這裡隻在pc測試, 是以修改的隻有 target 3.0 部分的 pass. ( vert frag 寫法的着色器 )
- 提取内置 standard 的 shader ( StandardExt.shader ) 和 材質編輯器擴充 ( StandardShaderGUIExt.cs ).
- 修改 ForwardBase 和 ForwardAdd, 增加 消失 邏輯 , 不消失部分則直接 return 原函數值.
- 自定義 shadow caster pass, 也增加 消失 邏輯. 模型消失的影子跟着消失.
- 修改材質編輯擴充, 增加一個 噪點圖 及 門檻值 控制
代碼
請原諒我簡單粗暴貼代碼, 由于腳本較少就不用git倉庫了. ( 滑稽.gif )
shader
StandardExt.shader
// Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt)
Shader "test/StandardExt"
{
Properties
{
_Color("Color", Color) = (1,1,1,1)
_MainTex("Albedo", 2D) = "white" {}
_NoiseTex ("Noise tex", 2D) = "white" {}
_BurnAmout ("Burn Amount", Range(0.0, 1.0)) = 0.0
_Cutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5
_Glossiness("Smoothness", Range(0.0, 1.0)) = 0.5
_GlossMapScale("Smoothness Scale", Range(0.0, 1.0)) = 1.0
[Enum(Metallic Alpha,0,Albedo Alpha,1)] _SmoothnessTextureChannel ("Smoothness texture channel", Float) = 0
[Gamma] _Metallic("Metallic", Range(0.0, 1.0)) = 0.0
_MetallicGlossMap("Metallic", 2D) = "white" {}
[ToggleOff] _SpecularHighlights("Specular Highlights", Float) = 1.0
[ToggleOff] _GlossyReflections("Glossy Reflections", Float) = 1.0
_BumpScale("Scale", Float) = 1.0
_BumpMap("Normal Map", 2D) = "bump" {}
_Parallax ("Height Scale", Range (0.005, 0.08)) = 0.02
_ParallaxMap ("Height Map", 2D) = "black" {}
_OcclusionStrength("Strength", Range(0.0, 1.0)) = 1.0
_OcclusionMap("Occlusion", 2D) = "white" {}
_EmissionColor("Color", Color) = (0,0,0)
_EmissionMap("Emission", 2D) = "white" {}
_DetailMask("Detail Mask", 2D) = "white" {}
_DetailAlbedoMap("Detail Albedo x2", 2D) = "grey" {}
_DetailNormalMapScale("Scale", Float) = 1.0
_DetailNormalMap("Normal Map", 2D) = "bump" {}
[Enum(UV0,0,UV1,1)] _UVSec ("UV Set for secondary textures", Float) = 0
// Blending state
[HideInInspector] _Mode ("__mode", Float) = 0.0
[HideInInspector] _SrcBlend ("__src", Float) = 1.0
[HideInInspector] _DstBlend ("__dst", Float) = 0.0
[HideInInspector] _ZWrite ("__zw", Float) = 1.0
}
CGINCLUDE
#define UNITY_SETUP_BRDF_INPUT MetallicSetup
ENDCG
SubShader
{
Tags { "RenderType"="Opaque" "PerformanceChecks"="False" }
LOD 300
CGINCLUDE
sampler2D _NoiseTex;
float _BurnAmout;
ENDCG
// ------------------------------------------------------------------
// Base forward pass (directional light, emission, lightmaps, ...)
Pass
{
Name "FORWARD"
Tags { "LightMode" = "ForwardBase" }
Blend [_SrcBlend] [_DstBlend]
ZWrite [_ZWrite]
CGPROGRAM
#pragma target 3.0
// -------------------------------------
#pragma shader_feature _NORMALMAP
#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
#pragma shader_feature _EMISSION
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature ___ _DETAIL_MULX2
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature _ _GLOSSYREFLECTIONS_OFF
#pragma shader_feature _PARALLAXMAP
#pragma multi_compile_fwdbase
#pragma multi_compile_fog
#pragma multi_compile_instancing
#pragma vertex vertBase
#pragma fragment fragBase_ext
#include "UnityStandardCoreForward.cginc"
half4 fragBase_ext (VertexOutputForwardBase i) : SV_Target {
fixed3 burn = tex2D(_NoiseTex, i.tex.xy).rgb;
fixed diff = burn.r - _BurnAmout;
fixed4 edgeClr = fixed4(1, 1, 0, 1);
clip(diff);
fixed isEdge = step(diff, 0.05);
return lerp(fragBase(i), edgeClr, isEdge);
}
ENDCG
}
// ------------------------------------------------------------------
// Additive forward pass (one light per pass)
Pass
{
Name "FORWARD_DELTA"
Tags { "LightMode" = "ForwardAdd" }
Blend [_SrcBlend] One
Fog { Color (0,0,0,0) } // in additive pass fog should be black
ZWrite Off
ZTest LEqual
CGPROGRAM
#pragma target 3.0
// -------------------------------------
#pragma shader_feature _NORMALMAP
#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature ___ _DETAIL_MULX2
#pragma shader_feature _PARALLAXMAP
#pragma multi_compile_fwdadd_fullshadows
#pragma multi_compile_fog
#pragma vertex vertAdd
#pragma fragment fragAddExt
#include "UnityStandardCoreForward.cginc"
half4 fragAddExt (VertexOutputForwardAdd i) : SV_Target {
fixed3 burn = tex2D(_NoiseTex, i.tex.xy).rgb;
fixed diff = burn.r - _BurnAmout;
clip(burn.r - _BurnAmout);
if (diff < 0) {
discard;
} else if (diff < 0.05 ) { // 消失邊緣加個顔色
return fixed4(1, 1, 0, 1);
}
return fragAdd(i);
}
ENDCG
}
// ------------------------------------------------------------------
// Shadow rendering pass 内置的 陰影投射
// Pass {
// Name "ShadowCaster"
// Tags { "LightMode" = "ShadowCaster" }
// ZWrite On ZTest LEqual
// CGPROGRAM
// #pragma target 3.0
// // -------------------------------------
// #pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
// #pragma shader_feature _METALLICGLOSSMAP
// #pragma shader_feature _PARALLAXMAP
// #pragma multi_compile_shadowcaster
// #pragma multi_compile_instancing
// #pragma vertex vertShadowCaster
// #pragma fragment fragShadowCaster
// sampler2D _NoiseTex;
// float _BurnAmout;
// half4 fragShadowCasterExt(VertexOutputShadowCaster i) : SV_Target {
// fixed3 burn = tex2D(_NoiseTex, i.tex.xy).rgb;
// fixed diff = burn.r - _BurnAmout;
// clip(burn.r - _BurnAmout);
// if (diff < 0) {
// discard;
// } else if (diff < 0.05 ) { // 消失邊緣加個顔色
// return fixed4(1, 1, 0, 1);
// }
// return half4(0, 0, 0, 1);
// }
// #include "UnityStandardShadow.cginc"
// ENDCG
// }
Pass
{
Name "ShadowCaster"
Tags{ "LightMode" = "ShadowCaster" }
Fog { Mode Off }
ZWrite On
Offset 1, 1
Cull[_DoubleSided]
CGPROGRAM
#pragma target 3.0
#pragma vertex vert
#pragma fragment frag
#pragma multi_compile_shadowcaster
#pragma fragmentoption ARB_precision_hint_fastest
#pragma shader_feature _ALPHA_TEST_ON
#include "UnityCG.cginc"
struct v2f
{
V2F_SHADOW_CASTER;
fixed2 uv0 : TEXCOORD1;
};
v2f vert(appdata_base v)
{
v2f o;
TRANSFER_SHADOW_CASTER(o)
o.uv0 = v.texcoord.xy;
return o;
}
fixed4 frag(v2f i) : COLOR
{
fixed3 burn = tex2D(_NoiseTex, i.uv0).rgb;
clip(burn.r - _BurnAmout);
SHADOW_CASTER_FRAGMENT(i)
}
ENDCG
}
// ------------------------------------------------------------------
// Deferred pass
Pass
{
Name "DEFERRED"
Tags { "LightMode" = "Deferred" }
CGPROGRAM
#pragma target 3.0
#pragma exclude_renderers nomrt
// -------------------------------------
#pragma shader_feature _NORMALMAP
#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
#pragma shader_feature _EMISSION
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature ___ _DETAIL_MULX2
#pragma shader_feature _PARALLAXMAP
#pragma multi_compile_prepassfinal
#pragma multi_compile_instancing
#pragma vertex vertDeferred
#pragma fragment fragDeferred
#include "UnityStandardCore.cginc"
ENDCG
}
// ------------------------------------------------------------------
// Extracts information for lightmapping, GI (emission, albedo, ...)
// This pass it not used during regular rendering.
Pass
{
Name "META"
Tags { "LightMode"="Meta" }
Cull Off
CGPROGRAM
#pragma vertex vert_meta
#pragma fragment frag_meta
#pragma shader_feature _EMISSION
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature ___ _DETAIL_MULX2
#pragma shader_feature EDITOR_VISUALIZATION
#include "UnityStandardMeta.cginc"
ENDCG
}
}
SubShader
{
Tags { "RenderType"="Opaque" "PerformanceChecks"="False" }
LOD 150
// ------------------------------------------------------------------
// Base forward pass (directional light, emission, lightmaps, ...)
Pass
{
Name "FORWARD"
Tags { "LightMode" = "ForwardBase" }
Blend [_SrcBlend] [_DstBlend]
ZWrite [_ZWrite]
CGPROGRAM
#pragma target 2.0
#pragma shader_feature _NORMALMAP
#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
#pragma shader_feature _EMISSION
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature _ _GLOSSYREFLECTIONS_OFF
// SM2.0: NOT SUPPORTED shader_feature ___ _DETAIL_MULX2
// SM2.0: NOT SUPPORTED shader_feature _PARALLAXMAP
#pragma skip_variants SHADOWS_SOFT DIRLIGHTMAP_COMBINED
#pragma multi_compile_fwdbase
#pragma multi_compile_fog
#pragma vertex vertBase
#pragma fragment fragBase
#include "UnityStandardCoreForward.cginc"
ENDCG
}
// ------------------------------------------------------------------
// Additive forward pass (one light per pass)
Pass
{
Name "FORWARD_DELTA"
Tags { "LightMode" = "ForwardAdd" }
Blend [_SrcBlend] One
Fog { Color (0,0,0,0) } // in additive pass fog should be black
ZWrite Off
ZTest LEqual
CGPROGRAM
#pragma target 2.0
#pragma shader_feature _NORMALMAP
#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
#pragma shader_feature ___ _DETAIL_MULX2
// SM2.0: NOT SUPPORTED shader_feature _PARALLAXMAP
#pragma skip_variants SHADOWS_SOFT
#pragma multi_compile_fwdadd_fullshadows
#pragma multi_compile_fog
#pragma vertex vertAdd
#pragma fragment fragAdd
#include "UnityStandardCoreForward.cginc"
ENDCG
}
// ------------------------------------------------------------------
// Shadow rendering pass
Pass {
Name "ShadowCaster"
Tags { "LightMode" = "ShadowCaster" }
ZWrite On ZTest LEqual
CGPROGRAM
#pragma target 2.0
#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
#pragma shader_feature _METALLICGLOSSMAP
#pragma skip_variants SHADOWS_SOFT
#pragma multi_compile_shadowcaster
#pragma vertex vertShadowCaster
#pragma fragment fragShadowCaster
#include "UnityStandardShadow.cginc"
ENDCG
}
// ------------------------------------------------------------------
// Extracts information for lightmapping, GI (emission, albedo, ...)
// This pass it not used during regular rendering.
Pass
{
Name "META"
Tags { "LightMode"="Meta" }
Cull Off
CGPROGRAM
#pragma vertex vert_meta
#pragma fragment frag_meta
#pragma shader_feature _EMISSION
#pragma shader_feature _METALLICGLOSSMAP
#pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
#pragma shader_feature ___ _DETAIL_MULX2
#pragma shader_feature EDITOR_VISUALIZATION
#include "UnityStandardMeta.cginc"
ENDCG
}
}
FallBack "VertexLit"
CustomEditor "StandardShaderGUIExt"
}
材質編輯器擴充腳本
StandardShaderGUIExt.cs, 此腳本要丢在 Editor 目錄下
// Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt)
using System;
using UnityEngine;
namespace UnityEditor
{
internal class StandardShaderGUIExt : ShaderGUI
{
private enum WorkflowMode
{
Specular,
Metallic,
Dielectric
}
public enum BlendMode
{
Opaque,
Cutout,
Fade, // Old school alpha-blending mode, fresnel does not affect amount of transparency
Transparent // Physically plausible transparency mode, implemented as alpha pre-multiply
}
public enum SmoothnessMapChannel
{
SpecularMetallicAlpha,
AlbedoAlpha,
}
private static class Styles
{
public static GUIContent uvSetLabel = EditorGUIUtility.TrTextContent("UV Set");
public static GUIContent albedoText = EditorGUIUtility.TrTextContent("Albedo", "Albedo (RGB) and Transparency (A)");
public static GUIContent alphaCutoffText = EditorGUIUtility.TrTextContent("Alpha Cutoff", "Threshold for alpha cutoff");
public static GUIContent specularMapText = EditorGUIUtility.TrTextContent("Specular", "Specular (RGB) and Smoothness (A)");
public static GUIContent metallicMapText = EditorGUIUtility.TrTextContent("Metallic", "Metallic (R) and Smoothness (A)");
public static GUIContent smoothnessText = EditorGUIUtility.TrTextContent("Smoothness", "Smoothness value");
public static GUIContent smoothnessScaleText = EditorGUIUtility.TrTextContent("Smoothness", "Smoothness scale factor");
public static GUIContent smoothnessMapChannelText = EditorGUIUtility.TrTextContent("Source", "Smoothness texture and channel");
public static GUIContent highlightsText = EditorGUIUtility.TrTextContent("Specular Highlights", "Specular Highlights");
public static GUIContent reflectionsText = EditorGUIUtility.TrTextContent("Reflections", "Glossy Reflections");
public static GUIContent normalMapText = EditorGUIUtility.TrTextContent("Normal Map", "Normal Map");
public static GUIContent heightMapText = EditorGUIUtility.TrTextContent("Height Map", "Height Map (G)");
public static GUIContent occlusionText = EditorGUIUtility.TrTextContent("Occlusion", "Occlusion (G)");
public static GUIContent emissionText = EditorGUIUtility.TrTextContent("Color", "Emission (RGB)");
public static GUIContent detailMaskText = EditorGUIUtility.TrTextContent("Detail Mask", "Mask for Secondary Maps (A)");
public static GUIContent detailAlbedoText = EditorGUIUtility.TrTextContent("Detail Albedo x2", "Albedo (RGB) multiplied by 2");
public static GUIContent detailNormalMapText = EditorGUIUtility.TrTextContent("Normal Map", "Normal Map");
public static string primaryMapsText = "Main Maps";
public static string secondaryMapsText = "Secondary Maps";
public static string forwardText = "Forward Rendering Options";
public static string renderingMode = "Rendering Mode";
public static string advancedText = "Advanced Options";
public static readonly string[] blendNames = Enum.GetNames(typeof(BlendMode));
}
MaterialProperty blendMode = null;
MaterialProperty albedoMap = null;
MaterialProperty noiseMap = null;
MaterialProperty burnAmout = null;
MaterialProperty albedoColor = null;
MaterialProperty alphaCutoff = null;
MaterialProperty specularMap = null;
MaterialProperty specularColor = null;
MaterialProperty metallicMap = null;
MaterialProperty metallic = null;
MaterialProperty smoothness = null;
MaterialProperty smoothnessScale = null;
MaterialProperty smoothnessMapChannel = null;
MaterialProperty highlights = null;
MaterialProperty reflections = null;
MaterialProperty bumpScale = null;
MaterialProperty bumpMap = null;
MaterialProperty occlusionStrength = null;
MaterialProperty occlusionMap = null;
MaterialProperty heigtMapScale = null;
MaterialProperty heightMap = null;
MaterialProperty emissionColorForRendering = null;
MaterialProperty emissionMap = null;
MaterialProperty detailMask = null;
MaterialProperty detailAlbedoMap = null;
MaterialProperty detailNormalMapScale = null;
MaterialProperty detailNormalMap = null;
MaterialProperty uvSetSecondary = null;
MaterialEditor m_MaterialEditor;
WorkflowMode m_WorkflowMode = WorkflowMode.Specular;
bool m_FirstTimeApply = true;
public void FindProperties(MaterialProperty[] props)
{
blendMode = FindProperty("_Mode", props);
albedoMap = FindProperty("_MainTex", props);
noiseMap = FindProperty("_NoiseTex", props);
burnAmout = FindProperty("_BurnAmout", props);
albedoColor = FindProperty("_Color", props);
alphaCutoff = FindProperty("_Cutoff", props);
specularMap = FindProperty("_SpecGlossMap", props, false);
specularColor = FindProperty("_SpecColor", props, false);
metallicMap = FindProperty("_MetallicGlossMap", props, false);
metallic = FindProperty("_Metallic", props, false);
if (specularMap != null && specularColor != null)
m_WorkflowMode = WorkflowMode.Specular;
else if (metallicMap != null && metallic != null)
m_WorkflowMode = WorkflowMode.Metallic;
else
m_WorkflowMode = WorkflowMode.Dielectric;
smoothness = FindProperty("_Glossiness", props);
smoothnessScale = FindProperty("_GlossMapScale", props, false);
smoothnessMapChannel = FindProperty("_SmoothnessTextureChannel", props, false);
highlights = FindProperty("_SpecularHighlights", props, false);
reflections = FindProperty("_GlossyReflections", props, false);
bumpScale = FindProperty("_BumpScale", props);
bumpMap = FindProperty("_BumpMap", props);
heigtMapScale = FindProperty("_Parallax", props);
heightMap = FindProperty("_ParallaxMap", props);
occlusionStrength = FindProperty("_OcclusionStrength", props);
occlusionMap = FindProperty("_OcclusionMap", props);
emissionColorForRendering = FindProperty("_EmissionColor", props);
emissionMap = FindProperty("_EmissionMap", props);
detailMask = FindProperty("_DetailMask", props);
detailAlbedoMap = FindProperty("_DetailAlbedoMap", props);
detailNormalMapScale = FindProperty("_DetailNormalMapScale", props);
detailNormalMap = FindProperty("_DetailNormalMap", props);
uvSetSecondary = FindProperty("_UVSec", props);
}
public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] props)
{
FindProperties(props); // MaterialProperties can be animated so we do not cache them but fetch them every event to ensure animated values are updated correctly
m_MaterialEditor = materialEditor;
Material material = materialEditor.target as Material;
// Make sure that needed setup (ie keywords/renderqueue) are set up if we're switching some existing
// material to a standard shader.
// Do this before any GUI code has been issued to prevent layout issues in subsequent GUILayout statements (case 780071)
if (m_FirstTimeApply)
{
MaterialChanged(material, m_WorkflowMode);
m_FirstTimeApply = false;
}
ShaderPropertiesGUI(material);
}
public void ShaderPropertiesGUI(Material material)
{
// Use default labelWidth
EditorGUIUtility.labelWidth = 0f;
// Detect any changes to the material
EditorGUI.BeginChangeCheck();
{
BlendModePopup();
DoNoiseArea(material); // ext
// Primary properties
GUILayout.Label(Styles.primaryMapsText, EditorStyles.boldLabel);
DoAlbedoArea(material);
DoSpecularMetallicArea();
DoNormalArea();
m_MaterialEditor.TexturePropertySingleLine(Styles.heightMapText, heightMap, heightMap.textureValue != null ? heigtMapScale : null);
m_MaterialEditor.TexturePropertySingleLine(Styles.occlusionText, occlusionMap, occlusionMap.textureValue != null ? occlusionStrength : null);
m_MaterialEditor.TexturePropertySingleLine(Styles.detailMaskText, detailMask);
DoEmissionArea(material);
EditorGUI.BeginChangeCheck();
m_MaterialEditor.TextureScaleOffsetProperty(albedoMap);
if (EditorGUI.EndChangeCheck())
emissionMap.textureScaleAndOffset = albedoMap.textureScaleAndOffset; // Apply the main texture scale and offset to the emission texture as well, for Enlighten's sake
EditorGUILayout.Space();
// Secondary properties
GUILayout.Label(Styles.secondaryMapsText, EditorStyles.boldLabel);
m_MaterialEditor.TexturePropertySingleLine(Styles.detailAlbedoText, detailAlbedoMap);
m_MaterialEditor.TexturePropertySingleLine(Styles.detailNormalMapText, detailNormalMap, detailNormalMapScale);
m_MaterialEditor.TextureScaleOffsetProperty(detailAlbedoMap);
m_MaterialEditor.ShaderProperty(uvSetSecondary, Styles.uvSetLabel.text);
// Third properties
GUILayout.Label(Styles.forwardText, EditorStyles.boldLabel);
if (highlights != null)
m_MaterialEditor.ShaderProperty(highlights, Styles.highlightsText);
if (reflections != null)
m_MaterialEditor.ShaderProperty(reflections, Styles.reflectionsText);
}
if (EditorGUI.EndChangeCheck())
{
foreach (var obj in blendMode.targets)
MaterialChanged((Material)obj, m_WorkflowMode);
}
EditorGUILayout.Space();
// NB renderqueue editor is not shown on purpose: we want to override it based on blend mode
GUILayout.Label(Styles.advancedText, EditorStyles.boldLabel);
m_MaterialEditor.EnableInstancingField();
m_MaterialEditor.DoubleSidedGIField();
}
internal void DetermineWorkflow(MaterialProperty[] props)
{
if (FindProperty("_SpecGlossMap", props, false) != null && FindProperty("_SpecColor", props, false) != null)
m_WorkflowMode = WorkflowMode.Specular;
else if (FindProperty("_MetallicGlossMap", props, false) != null && FindProperty("_Metallic", props, false) != null)
m_WorkflowMode = WorkflowMode.Metallic;
else
m_WorkflowMode = WorkflowMode.Dielectric;
}
public override void AssignNewShaderToMaterial(Material material, Shader oldShader, Shader newShader)
{
// _Emission property is lost after assigning Standard shader to the material
// thus transfer it before assigning the new shader
if (material.HasProperty("_Emission"))
{
material.SetColor("_EmissionColor", material.GetColor("_Emission"));
}
base.AssignNewShaderToMaterial(material, oldShader, newShader);
if (oldShader == null || !oldShader.name.Contains("Legacy Shaders/"))
{
SetupMaterialWithBlendMode(material, (BlendMode)material.GetFloat("_Mode"));
return;
}
BlendMode blendMode = BlendMode.Opaque;
if (oldShader.name.Contains("/Transparent/Cutout/"))
{
blendMode = BlendMode.Cutout;
}
else if (oldShader.name.Contains("/Transparent/"))
{
// NOTE: legacy shaders did not provide physically based transparency
// therefore Fade mode
blendMode = BlendMode.Fade;
}
material.SetFloat("_Mode", (float)blendMode);
DetermineWorkflow(MaterialEditor.GetMaterialProperties(new Material[] { material }));
MaterialChanged(material, m_WorkflowMode);
}
void BlendModePopup()
{
EditorGUI.showMixedValue = blendMode.hasMixedValue;
var mode = (BlendMode)blendMode.floatValue;
EditorGUI.BeginChangeCheck();
mode = (BlendMode)EditorGUILayout.Popup(Styles.renderingMode, (int)mode, Styles.blendNames);
if (EditorGUI.EndChangeCheck())
{
m_MaterialEditor.RegisterPropertyChangeUndo("Rendering Mode");
blendMode.floatValue = (float)mode;
}
EditorGUI.showMixedValue = false;
}
void DoNormalArea()
{
m_MaterialEditor.TexturePropertySingleLine(Styles.normalMapText, bumpMap, bumpMap.textureValue != null ? bumpScale : null);
if (bumpScale.floatValue != 1 && UnityEditorInternal.InternalEditorUtility.IsMobilePlatform(EditorUserBuildSettings.activeBuildTarget))
if (m_MaterialEditor.HelpBoxWithButton(
EditorGUIUtility.TrTextContent("Bump scale is not supported on mobile platforms"),
EditorGUIUtility.TrTextContent("Fix Now")))
{
bumpScale.floatValue = 1;
}
}
void DoAlbedoArea(Material material)
{
m_MaterialEditor.TexturePropertySingleLine(Styles.albedoText, albedoMap, albedoColor);
if (((BlendMode)material.GetFloat("_Mode") == BlendMode.Cutout))
{
m_MaterialEditor.ShaderProperty(alphaCutoff, Styles.alphaCutoffText.text, MaterialEditor.kMiniTextureFieldLabelIndentLevel + 1);
}
}
void DoNoiseArea(Material material)
{
GUIContent ctx = EditorGUIUtility.TrTextContent("NoiseTex");
m_MaterialEditor.TexturePropertySingleLine(ctx, noiseMap);
m_MaterialEditor.ShaderProperty(burnAmout, "");
}
void DoEmissionArea(Material material)
{
// Emission for GI?
if (m_MaterialEditor.EmissionEnabledProperty())
{
bool hadEmissionTexture = emissionMap.textureValue != null;
// Texture and HDR color controls
m_MaterialEditor.TexturePropertyWithHDRColor(Styles.emissionText, emissionMap, emissionColorForRendering, false);
// If texture was assigned and color was black set color to white
float brightness = emissionColorForRendering.colorValue.maxColorComponent;
if (emissionMap.textureValue != null && !hadEmissionTexture && brightness <= 0f)
emissionColorForRendering.colorValue = Color.white;
// change the GI flag and fix it up with emissive as black if necessary
m_MaterialEditor.LightmapEmissionFlagsProperty(MaterialEditor.kMiniTextureFieldLabelIndentLevel, true);
}
}
void DoSpecularMetallicArea()
{
bool hasGlossMap = false;
if (m_WorkflowMode == WorkflowMode.Specular)
{
hasGlossMap = specularMap.textureValue != null;
m_MaterialEditor.TexturePropertySingleLine(Styles.specularMapText, specularMap, hasGlossMap ? null : specularColor);
}
else if (m_WorkflowMode == WorkflowMode.Metallic)
{
hasGlossMap = metallicMap.textureValue != null;
m_MaterialEditor.TexturePropertySingleLine(Styles.metallicMapText, metallicMap, hasGlossMap ? null : metallic);
}
bool showSmoothnessScale = hasGlossMap;
if (smoothnessMapChannel != null)
{
int smoothnessChannel = (int)smoothnessMapChannel.floatValue;
if (smoothnessChannel == (int)SmoothnessMapChannel.AlbedoAlpha)
showSmoothnessScale = true;
}
int indentation = 2; // align with labels of texture properties
m_MaterialEditor.ShaderProperty(showSmoothnessScale ? smoothnessScale : smoothness, showSmoothnessScale ? Styles.smoothnessScaleText : Styles.smoothnessText, indentation);
++indentation;
if (smoothnessMapChannel != null)
m_MaterialEditor.ShaderProperty(smoothnessMapChannel, Styles.smoothnessMapChannelText, indentation);
}
public static void SetupMaterialWithBlendMode(Material material, BlendMode blendMode)
{
switch (blendMode)
{
case BlendMode.Opaque:
material.SetOverrideTag("RenderType", "");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
material.SetInt("_ZWrite", 1);
material.DisableKeyword("_ALPHATEST_ON");
material.DisableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = -1;
break;
case BlendMode.Cutout:
material.SetOverrideTag("RenderType", "TransparentCutout");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
material.SetInt("_ZWrite", 1);
material.EnableKeyword("_ALPHATEST_ON");
material.DisableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.AlphaTest;
break;
case BlendMode.Fade:
material.SetOverrideTag("RenderType", "Transparent");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
material.SetInt("_ZWrite", 0);
material.DisableKeyword("_ALPHATEST_ON");
material.EnableKeyword("_ALPHABLEND_ON");
material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;
break;
case BlendMode.Transparent:
material.SetOverrideTag("RenderType", "Transparent");
material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
material.SetInt("_ZWrite", 0);
material.DisableKeyword("_ALPHATEST_ON");
material.DisableKeyword("_ALPHABLEND_ON");
material.EnableKeyword("_ALPHAPREMULTIPLY_ON");
material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;
break;
}
}
static SmoothnessMapChannel GetSmoothnessMapChannel(Material material)
{
int ch = (int)material.GetFloat("_SmoothnessTextureChannel");
if (ch == (int)SmoothnessMapChannel.AlbedoAlpha)
return SmoothnessMapChannel.AlbedoAlpha;
else
return SmoothnessMapChannel.SpecularMetallicAlpha;
}
static void SetMaterialKeywords(Material material, WorkflowMode workflowMode)
{
// Note: keywords must be based on Material value not on MaterialProperty due to multi-edit & material animation
// (MaterialProperty value might come from renderer material property block)
SetKeyword(material, "_NORMALMAP", material.GetTexture("_BumpMap") || material.GetTexture("_DetailNormalMap"));
if (workflowMode == WorkflowMode.Specular)
SetKeyword(material, "_SPECGLOSSMAP", material.GetTexture("_SpecGlossMap"));
else if (workflowMode == WorkflowMode.Metallic)
SetKeyword(material, "_METALLICGLOSSMAP", material.GetTexture("_MetallicGlossMap"));
SetKeyword(material, "_PARALLAXMAP", material.GetTexture("_ParallaxMap"));
SetKeyword(material, "_DETAIL_MULX2", material.GetTexture("_DetailAlbedoMap") || material.GetTexture("_DetailNormalMap"));
// A material's GI flag internally keeps track of whether emission is enabled at all, it's enabled but has no effect
// or is enabled and may be modified at runtime. This state depends on the values of the current flag and emissive color.
// The fixup routine makes sure that the material is in the correct state if/when changes are made to the mode or color.
MaterialEditor.FixupEmissiveFlag(material);
bool shouldEmissionBeEnabled = (material.globalIlluminationFlags & MaterialGlobalIlluminationFlags.EmissiveIsBlack) == 0;
SetKeyword(material, "_EMISSION", shouldEmissionBeEnabled);
if (material.HasProperty("_SmoothnessTextureChannel"))
{
SetKeyword(material, "_SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A", GetSmoothnessMapChannel(material) == SmoothnessMapChannel.AlbedoAlpha);
}
}
static void MaterialChanged(Material material, WorkflowMode workflowMode)
{
SetupMaterialWithBlendMode(material, (BlendMode)material.GetFloat("_Mode"));
SetMaterialKeywords(material, workflowMode);
}
static void SetKeyword(Material m, string keyword, bool state)
{
if (state)
m.EnableKeyword(keyword);
else
m.DisableKeyword(keyword);
}
}
} // namespace UnityEditor
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