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325 行
16 KiB

using System;
using UnityEngine;
using UnityEngine.Experimental.Rendering;
namespace UnityEditor
{
internal class LightweightStandardGUI : LightweightShaderGUI
{
public enum WorkflowMode
{
Specular = 0,
Metallic
}
public enum SmoothnessMapChannel
{
SpecularMetallicAlpha,
AlbedoAlpha,
}
private static class Styles
{
public static GUIContent albedoText = new GUIContent("Albedo", "Albedo (RGB) and Transparency (A)");
public static GUIContent alphaCutoffText = new GUIContent("Alpha Cutoff", "Threshold for alpha cutoff");
public static GUIContent specularMapText = new GUIContent("Specular", "Specular (RGB) and Smoothness (A)");
public static GUIContent metallicMapText = new GUIContent("Metallic", "Metallic (R) and Smoothness (A)");
public static GUIContent smoothnessText = new GUIContent("Smoothness", "Smoothness value");
public static GUIContent smoothnessScaleText = new GUIContent("Smoothness", "Smoothness scale factor");
public static GUIContent smoothnessMapChannelText = new GUIContent("Source", "Smoothness texture and channel");
public static GUIContent highlightsText = new GUIContent("Specular Highlights", "Specular Highlights");
public static GUIContent reflectionsText = new GUIContent("Reflections", "Glossy Reflections");
public static GUIContent normalMapText = new GUIContent("Normal Map", "Normal Map");
public static GUIContent occlusionText = new GUIContent("Occlusion", "Occlusion (G)");
public static GUIContent emissionText = new GUIContent("Color", "Emission (RGB)");
public static GUIContent bumpScaleNotSupported = new GUIContent("Bump scale is not supported on mobile platforms");
public static GUIContent fixNow = new GUIContent("Fix now");
public static string primaryMapsText = "Main Maps";
public static string secondaryMapsText = "Secondary Maps";
public static string forwardText = "Forward Rendering Options";
public static string workflowModeText = "Workflow Mode";
public static string renderingMode = "Rendering Mode";
public static string advancedText = "Advanced Options";
public static readonly string[] workflowNames = Enum.GetNames(typeof(WorkflowMode));
public static readonly string[] blendNames = Enum.GetNames(typeof(BlendMode));
public static readonly string[] metallicSmoothnessChannelNames = {"Metallic Alpha", "Albedo Alpha"};
public static readonly string[] specularSmoothnessChannelNames = {"Specular Alpha", "Albedo Alpha"};
}
private MaterialProperty workflowMode;
private MaterialProperty blendMode;
private MaterialProperty albedoColor;
private MaterialProperty albedoMap;
private MaterialProperty alphaCutoff;
private MaterialProperty smoothness;
private MaterialProperty smoothnessScale;
private MaterialProperty smoothnessMapChannel;
private MaterialProperty metallic;
private MaterialProperty specColor;
private MaterialProperty metallicGlossMap;
private MaterialProperty specGlossMap;
private MaterialProperty highlights;
private MaterialProperty reflections;
private MaterialProperty bumpScale;
private MaterialProperty bumpMap;
private MaterialProperty occlusionStrength;
private MaterialProperty occlusionMap;
private MaterialProperty emissionColorForRendering;
private MaterialProperty emissionMap;
public override void FindProperties(MaterialProperty[] properties)
{
workflowMode = FindProperty("_WorkflowMode", properties);
blendMode = FindProperty("_Mode", properties);
albedoColor = FindProperty("_Color", properties);
albedoMap = FindProperty("_MainTex", properties);
alphaCutoff = FindProperty("_Cutoff", properties);
smoothness = FindProperty("_Glossiness", properties);
smoothnessScale = FindProperty("_GlossMapScale", properties, false);
smoothnessMapChannel = FindProperty("_SmoothnessTextureChannel", properties, false);
metallic = FindProperty("_Metallic", properties);
specColor = FindProperty("_SpecColor", properties);
metallicGlossMap = FindProperty("_MetallicGlossMap", properties);
specGlossMap = FindProperty("_SpecGlossMap", properties);
highlights = FindProperty("_SpecularHighlights", properties);
reflections = FindProperty("_GlossyReflections", properties);
bumpScale = FindProperty("_BumpScale", properties);
bumpMap = FindProperty("_BumpMap", properties);
occlusionStrength = FindProperty("_OcclusionStrength", properties);
occlusionMap = FindProperty("_OcclusionMap", properties);
emissionColorForRendering = FindProperty("_EmissionColor", properties);
emissionMap = FindProperty("_EmissionMap", properties);
}
public override void MaterialChanged(Material material)
{
material.shaderKeywords = null;
SetupMaterialBlendMode(material);
SetMaterialKeywords(material);
}
public override void ShaderPropertiesGUI(Material material)
{
// Use default labelWidth
EditorGUIUtility.labelWidth = 0f;
// Detect any changes to the material
EditorGUI.BeginChangeCheck();
{
DoPopup(Styles.workflowModeText, workflowMode, Styles.workflowNames);
DoPopup(Styles.renderingMode, blendMode, Styles.blendNames);
// Primary properties
GUILayout.Label(Styles.primaryMapsText, EditorStyles.boldLabel);
DoAlbedoArea(material);
DoMetallicSpecularArea();
DoNormalArea();
m_MaterialEditor.TexturePropertySingleLine(Styles.occlusionText, occlusionMap, occlusionMap.textureValue != null ? occlusionStrength : null);
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();
m_MaterialEditor.ShaderProperty(highlights, Styles.highlightsText);
m_MaterialEditor.ShaderProperty(reflections, Styles.reflectionsText);
}
if (EditorGUI.EndChangeCheck())
{
foreach (var obj in blendMode.targets)
MaterialChanged((Material)obj);
}
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();
}
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/"))
{
SetupMaterialBlendMode(material);
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);
if (oldShader.name.Equals("Standard (Specular setup)"))
{
material.SetFloat("_WorkflowMode", (float)WorkflowMode.Specular);
Texture texture = material.GetTexture("_SpecGlossMap");
if (texture != null)
material.SetTexture("_MetallicSpecGlossMap", texture);
}
else
{
material.SetFloat("_WorkflowMode", (float)WorkflowMode.Metallic);
Texture texture = material.GetTexture("_MetallicGlossMap");
if (texture != null)
material.SetTexture("_MetallicSpecGlossMap", texture);
}
MaterialChanged(material);
}
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 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(Styles.bumpScaleNotSupported, Styles.fixNow))
bumpScale.floatValue = 1;
}
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;
// LW does not support RealtimeEmissive. We set it to bake emissive and handle the emissive is black right.
material.globalIlluminationFlags = MaterialGlobalIlluminationFlags.BakedEmissive;
if (brightness <= 0f)
material.globalIlluminationFlags |= MaterialGlobalIlluminationFlags.EmissiveIsBlack;
}
}
void DoMetallicSpecularArea()
{
string[] metallicSpecSmoothnessChannelName;
bool hasGlossMap = false;
if ((WorkflowMode)workflowMode.floatValue == WorkflowMode.Metallic)
{
hasGlossMap = metallicGlossMap.textureValue != null;
metallicSpecSmoothnessChannelName = Styles.metallicSmoothnessChannelNames;
m_MaterialEditor.TexturePropertySingleLine(Styles.metallicMapText, metallicGlossMap,
hasGlossMap ? null : metallic);
}
else
{
hasGlossMap = specGlossMap.textureValue != null;
metallicSpecSmoothnessChannelName = Styles.specularSmoothnessChannelNames;
m_MaterialEditor.TexturePropertySingleLine(Styles.specularMapText, specGlossMap,
hasGlossMap ? null : specColor);
}
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);
int prevIndentLevel = EditorGUI.indentLevel;
EditorGUI.indentLevel = 3;
if (smoothnessMapChannel != null)
DoPopup(Styles.smoothnessMapChannelText.text, smoothnessMapChannel, metallicSpecSmoothnessChannelName);
EditorGUI.indentLevel = prevIndentLevel;
}
static SmoothnessMapChannel GetSmoothnessMapChannel(Material material)
{
int ch = (int)material.GetFloat("_SmoothnessTextureChannel");
if (ch == (int)SmoothnessMapChannel.AlbedoAlpha)
return SmoothnessMapChannel.AlbedoAlpha;
return SmoothnessMapChannel.SpecularMetallicAlpha;
}
static void SetMaterialKeywords(Material material)
{
// 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)
bool isSpecularWorkFlow = (WorkflowMode)material.GetFloat("_WorkflowMode") == WorkflowMode.Specular;
bool hasGlossMap = false;
if (isSpecularWorkFlow)
hasGlossMap = material.GetTexture("_SpecGlossMap");
else
hasGlossMap = material.GetTexture("_MetallicGlossMap");
CoreUtils.SetKeyword(material, "_SPECULAR_SETUP", isSpecularWorkFlow);
CoreUtils.SetKeyword(material, "_METALLICSPECGLOSSMAP", hasGlossMap);
CoreUtils.SetKeyword(material, "_SPECGLOSSMAP", hasGlossMap && isSpecularWorkFlow);
CoreUtils.SetKeyword(material, "_METALLICGLOSSMAP", hasGlossMap && !isSpecularWorkFlow);
CoreUtils.SetKeyword(material, "_NORMALMAP", material.GetTexture("_BumpMap"));
CoreUtils.SetKeyword(material, "_SPECULARHIGHLIGHTS_OFF", material.GetFloat("_SpecularHighlights") == 0.0f);
CoreUtils.SetKeyword(material, "_GLOSSYREFLECTIONS_OFF", material.GetFloat("_GlossyReflections") == 0.0f);
CoreUtils.SetKeyword(material, "_OCCLUSIONMAP", material.GetTexture("_OcclusionMap"));
CoreUtils.SetKeyword(material, "_PARALLAXMAP", material.GetTexture("_ParallaxMap"));
CoreUtils.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;
CoreUtils.SetKeyword(material, "_EMISSION", shouldEmissionBeEnabled);
if (material.HasProperty("_SmoothnessTextureChannel"))
{
CoreUtils.SetKeyword(material, "_SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A", GetSmoothnessMapChannel(material) == SmoothnessMapChannel.AlbedoAlpha);
}
}
}
}