429 lines
22 KiB
C#
429 lines
22 KiB
C#
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// Unity built-in shader source. Copyright (c) 2016 Unity Technologies. MIT license (see license.txt)
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using System;
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using UnityEngine;
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namespace UnityEditor
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{
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namespace BrainFailProductions.BatchFew
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{
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internal class BatchFewShaderGUI : ShaderGUI
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{
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public enum WorkflowMode
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{
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Specular,
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Metallic,
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Dielectric
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}
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public enum BlendMode
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{
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Opaque,
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Cutout,
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Fade,
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// Old school alpha-blending mode, fresnel does not affect amount of transparency
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Transparent
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// Physically plausible transparency mode, implemented as alpha pre-multiply
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}
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public enum SmoothnessMapChannel
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{
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SpecularMetallicAlpha,
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AlbedoAlpha,
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}
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private static class Styles
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{
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public static GUIContent uvSetLabel = new GUIContent("UV Set");
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public static GUIContent detailMode = new GUIContent("Detail Texture Mode");
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public static GUIContent albedoText = new GUIContent("Albedo", "Albedo (RGB) and Transparency (A)");
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public static GUIContent alphaCutoffText = new GUIContent("Alpha Cutoff", "Threshold for alpha cutoff");
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public static GUIContent specularMapText = new GUIContent("Specular", "Specular (RGB) and Smoothness (A)");
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public static GUIContent metallicMapText = new GUIContent("Metallic", "Metallic (R) and Smoothness (A)");
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public static GUIContent smoothnessMapChannelText = new GUIContent("Source", "Smoothness texture and channel");
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public static GUIContent highlightsText = new GUIContent("Specular Highlights", "Specular Highlights");
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public static GUIContent reflectionsText = new GUIContent("Reflections", "Glossy Reflections");
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public static GUIContent normalMapText = new GUIContent("Normal Map", "Normal Map");
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public static GUIContent heightMapText = new GUIContent("Height Map", "Height Map (G)");
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public static GUIContent occlusionText = new GUIContent("Occlusion", "Occlusion (G)");
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public static GUIContent emissionText = new GUIContent("Emission", "Emission (RGB)");
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public static GUIContent detailMaskText = new GUIContent("Detail Mask", "Mask for Secondary Maps (A)");
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public static GUIContent detailAlbedoText = new GUIContent("Detail Albedo x2", "Albedo (RGB) multiplied by 2");
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public static GUIContent detailNormalMapText = new GUIContent("Normal Map", "Normal Map");
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public static GUIContent propertyMapText = new GUIContent("Attributes Texture", "Texture which holds attributes for individual materials");
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public static GUIContent emissionMode = new GUIContent("Emission Mode", "None, color, or array based emission");
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public static GUIContent parallaxMode = new GUIContent("Parallax Mode", "None, Offset, or POM");
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public static GUIContent parallaxSteps = new GUIContent("Parallax Steps", "Number of taps to perform in Parallax Occlusion Mapping, more is more expensive");
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public static string primaryMapsText = "Main Maps";
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public static string secondaryMapsText = "Secondary Maps";
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public static string forwardText = "Forward Rendering Options";
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public static string renderingMode = "Rendering Mode";
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public static string advancedText = "Advanced Options";
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public static GUIContent emissiveWarning = new GUIContent("Emissive value is animated but the material has not been configured to support emissive. Please make sure the material itself has some amount of emissive.");
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public static readonly string[] blendNames = Enum.GetNames(typeof(BlendMode));
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}
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MaterialProperty blendMode = null;
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MaterialProperty albedoMap = null;
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MaterialProperty specularMap = null;
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MaterialProperty metallicMap = null;
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MaterialProperty smoothnessMapChannel = null;
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MaterialProperty highlights = null;
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MaterialProperty reflections = null;
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MaterialProperty bumpMap = null;
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MaterialProperty occlusionMap = null;
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MaterialProperty heightMap = null;
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MaterialProperty emissionMap = null;
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MaterialProperty detailMask = null;
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MaterialProperty detailAlbedoMap = null;
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MaterialProperty detailNormalMap = null;
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MaterialProperty uvSetSecondary = null;
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MaterialProperty attrImg = null;
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MaterialProperty detailMode = null;
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MaterialProperty emissionMode = null;
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MaterialProperty parallaxMode = null;
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MaterialProperty parallaxSteps = null;
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MaterialProperty detailAlbedoSingle = null;
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MaterialProperty detailNormalSingle = null;
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MaterialEditor m_MaterialEditor;
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WorkflowMode m_WorkflowMode = WorkflowMode.Specular;
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bool m_FirstTimeApply = true;
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public void FindProperties(MaterialProperty[] props)
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{
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blendMode = FindProperty("_Mode", props);
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albedoMap = FindProperty("_MainTex", props);
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//alphaCutoff = FindProperty("_Cutoff", props);
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specularMap = FindProperty("_SpecGlossMap", props, false);
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metallicMap = FindProperty("_MetallicGlossMap", props, false);
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parallaxMode = FindProperty("_ParallaxMode", props);
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parallaxSteps = FindProperty("_ParallaxSteps", props);
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if (specularMap != null) { m_WorkflowMode = WorkflowMode.Specular; }
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else if (metallicMap != null) { m_WorkflowMode = WorkflowMode.Metallic; }
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else { m_WorkflowMode = WorkflowMode.Dielectric; }
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smoothnessMapChannel = FindProperty("_SmoothnessTextureChannel", props, false);
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highlights = FindProperty("_SpecularHighlights", props, false);
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reflections = FindProperty("_GlossyReflections", props, false);
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bumpMap = FindProperty("_BumpMap", props);
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heightMap = FindProperty("_ParallaxMap", props);
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occlusionMap = FindProperty("_OcclusionMap", props);
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emissionMap = FindProperty("_EmissionMap", props);
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emissionMode = FindProperty("_EmissionMode", props);
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detailMask = FindProperty("_DetailMask", props);
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detailAlbedoMap = FindProperty("_DetailAlbedoMap", props);
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detailNormalMap = FindProperty("_DetailNormalMap", props);
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detailAlbedoSingle = FindProperty("_DetailAlbedoSingle", props);
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detailNormalSingle = FindProperty("_DetailNormalSingle", props);
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uvSetSecondary = FindProperty("_UVSec", props);
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detailMode = FindProperty("_DetailMode", props);
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attrImg = FindProperty("_AttrImg", props);
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}
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public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] props)
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{
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FindProperties(props); // MaterialProperties can be animated so we do not cache them but fetch them every event to ensure animated values are updated correctly
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m_MaterialEditor = materialEditor;
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Material material = materialEditor.target as Material;
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// Make sure that needed setup (ie keywords/renderqueue) are set up if we're switching some existing
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// material to a standard shader.
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// Do this before any GUI code has been issued to prevent layout issues in subsequent GUILayout statements (case 780071)
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if (m_FirstTimeApply)
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{
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MaterialChanged(material, m_WorkflowMode);
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m_FirstTimeApply = false;
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}
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ShaderPropertiesGUI(material);
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}
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public void ShaderPropertiesGUI(Material material)
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{
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// Use default labelWidth
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EditorGUIUtility.labelWidth = 0f;
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// Detect any changes to the material
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EditorGUI.BeginChangeCheck();
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{
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BlendModePopup();
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// Primary properties
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GUILayout.Label(Styles.primaryMapsText, EditorStyles.boldLabel);
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m_MaterialEditor.TexturePropertySingleLine(Styles.propertyMapText, attrImg);
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DoAlbedoArea(material);
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m_MaterialEditor.TexturePropertySingleLine(Styles.normalMapText, bumpMap);
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m_MaterialEditor.ShaderProperty(parallaxMode, Styles.parallaxMode.text);
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if (material.GetFloat("_ParallaxMode") == 2)
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{
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m_MaterialEditor.ShaderProperty(parallaxSteps, Styles.parallaxSteps.text);
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}
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if (m_WorkflowMode != WorkflowMode.Metallic)
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{
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DoSpecularMetallicArea();
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m_MaterialEditor.TexturePropertySingleLine(Styles.occlusionText, occlusionMap);
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m_MaterialEditor.TexturePropertySingleLine(Styles.heightMapText, heightMap);
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}
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m_MaterialEditor.TexturePropertySingleLine(Styles.detailMaskText, detailMask);
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DoEmissionArea(material);
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EditorGUILayout.Space();
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// Secondary properties
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GUILayout.Label(Styles.secondaryMapsText, EditorStyles.boldLabel);
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m_MaterialEditor.ShaderProperty(detailMode, Styles.detailMode.text);
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if (detailMode.floatValue > 0.5f)
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{
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m_MaterialEditor.TexturePropertySingleLine(Styles.detailAlbedoText, detailAlbedoSingle);
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m_MaterialEditor.TexturePropertySingleLine(Styles.detailNormalMapText, detailNormalSingle);
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}
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else
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{
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m_MaterialEditor.TexturePropertySingleLine(Styles.detailAlbedoText, detailAlbedoMap);
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m_MaterialEditor.TexturePropertySingleLine(Styles.detailNormalMapText, detailNormalMap);
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}
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m_MaterialEditor.ShaderProperty(uvSetSecondary, Styles.uvSetLabel.text);
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// Third properties
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GUILayout.Label(Styles.forwardText, EditorStyles.boldLabel);
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if (highlights != null) { m_MaterialEditor.ShaderProperty(highlights, Styles.highlightsText); }
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if (reflections != null) { m_MaterialEditor.ShaderProperty(reflections, Styles.reflectionsText); }
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}
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if (EditorGUI.EndChangeCheck())
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{
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foreach (var obj in blendMode.targets) { MaterialChanged((Material)obj, m_WorkflowMode); }
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}
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EditorGUILayout.Space();
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GUILayout.Label(Styles.advancedText, EditorStyles.boldLabel);
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m_MaterialEditor.RenderQueueField();
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m_MaterialEditor.EnableInstancingField();
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m_MaterialEditor.DoubleSidedGIField();
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}
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internal void DetermineWorkflow(MaterialProperty[] props)
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{
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if (FindProperty("_SpecGlossMap", props, false) != null) { m_WorkflowMode = WorkflowMode.Specular; }
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else if (FindProperty("_MetallicGlossMap", props, false) != null) { m_WorkflowMode = WorkflowMode.Metallic; }
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else { m_WorkflowMode = WorkflowMode.Dielectric; }
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}
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public override void AssignNewShaderToMaterial(Material material, Shader oldShader, Shader newShader)
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{
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base.AssignNewShaderToMaterial(material, oldShader, newShader);
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if (oldShader == null || !oldShader.name.Contains("Legacy Shaders/"))
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{
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SetupMaterialWithBlendMode(material, (BlendMode)material.GetFloat("_Mode"));
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return;
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}
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BlendMode blendMode = BlendMode.Opaque;
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if (oldShader.name.Contains("/Transparent/Cutout/"))
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{
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blendMode = BlendMode.Cutout;
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}
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else if (oldShader.name.Contains("/Transparent/"))
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{
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// NOTE: legacy shaders did not provide physically based transparency
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// therefore Fade mode
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blendMode = BlendMode.Fade;
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}
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material.SetFloat("_Mode", (float)blendMode);
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DetermineWorkflow(MaterialEditor.GetMaterialProperties(new Material[] { material }));
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MaterialChanged(material, m_WorkflowMode);
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}
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void BlendModePopup()
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{
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EditorGUI.showMixedValue = blendMode.hasMixedValue;
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var mode = (BlendMode)blendMode.floatValue;
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EditorGUI.BeginChangeCheck();
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mode = (BlendMode)EditorGUILayout.Popup(Styles.renderingMode, (int)mode, Styles.blendNames);
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if (EditorGUI.EndChangeCheck())
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{
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m_MaterialEditor.RegisterPropertyChangeUndo("Rendering Mode");
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blendMode.floatValue = (float)mode;
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}
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EditorGUI.showMixedValue = false;
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}
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void DoAlbedoArea(Material material)
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{
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m_MaterialEditor.TexturePropertySingleLine(Styles.albedoText, albedoMap);
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if (((BlendMode)material.GetFloat("_Mode") == BlendMode.Cutout))
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{
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// m_MaterialEditor.ShaderProperty(alphaCutoff, Styles.alphaCutoffText.text, MaterialEditor.kMiniTextureFieldLabelIndentLevel + 1);
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}
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}
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void DoEmissionArea(Material material)
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{
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m_MaterialEditor.ShaderProperty(emissionMode, Styles.emissionMode.text);
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// Texture and HDR color controls
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if (material.GetFloat("_EmissionMode") == 2)
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{
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m_MaterialEditor.TexturePropertySingleLine(Styles.emissionText, emissionMap);
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}
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// change the GI flag and fix it up with emissive as black if necessary
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//m_MaterialEditor.LightmapEmissionFlagsProperty(MaterialEditor.kMiniTextureFieldLabelIndentLevel, true);
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}
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void DoSpecularMetallicArea()
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{
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if (m_WorkflowMode == WorkflowMode.Specular)
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{
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m_MaterialEditor.TexturePropertySingleLine(Styles.specularMapText, specularMap);
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}
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else if (m_WorkflowMode == WorkflowMode.Metallic)
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{
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m_MaterialEditor.TexturePropertySingleLine(Styles.metallicMapText, metallicMap);
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}
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int indentation = 2; // align with labels of texture properties
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++indentation;
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if (smoothnessMapChannel != null)
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m_MaterialEditor.ShaderProperty(smoothnessMapChannel, Styles.smoothnessMapChannelText, indentation);
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}
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static void SetupMaterialWithBlendMode(Material material, BlendMode blendMode)
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{
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switch (blendMode)
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{
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case BlendMode.Opaque:
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material.SetOverrideTag("RenderType", "");
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
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material.SetInt("_ZWrite", 1);
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material.DisableKeyword("_ALPHATEST_ON");
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material.DisableKeyword("_ALPHABLEND_ON");
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material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
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material.renderQueue = -1;
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break;
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case BlendMode.Cutout:
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material.SetOverrideTag("RenderType", "TransparentCutout");
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
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material.SetInt("_ZWrite", 1);
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material.EnableKeyword("_ALPHATEST_ON");
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material.DisableKeyword("_ALPHABLEND_ON");
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material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
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material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.AlphaTest;
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break;
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case BlendMode.Fade:
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material.SetOverrideTag("RenderType", "Transparent");
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
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material.SetInt("_ZWrite", 0);
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material.DisableKeyword("_ALPHATEST_ON");
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material.EnableKeyword("_ALPHABLEND_ON");
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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 && material.HasProperty("_SpecGlossMap"))
|
||
|
|
SetKeyword(material, "_SPECGLOSSMAP", material.GetTexture("_SpecGlossMap"));
|
||
|
|
else if (workflowMode == WorkflowMode.Metallic && material.HasProperty("_MetallicGlossMap"))
|
||
|
|
SetKeyword(material, "_METALLICGLOSSMAP", material.GetTexture("_MetallicGlossMap"));
|
||
|
|
|
||
|
|
material.DisableKeyword("_PARALLAXMAP");
|
||
|
|
material.DisableKeyword("_POM");
|
||
|
|
if (material.GetTexture("_ParallaxMap"))
|
||
|
|
{
|
||
|
|
float pm = material.GetFloat("_ParallaxMode");
|
||
|
|
if (pm == 1)
|
||
|
|
{
|
||
|
|
material.EnableKeyword("_PARALLAXMAP");
|
||
|
|
}
|
||
|
|
else if (pm == 2)
|
||
|
|
{
|
||
|
|
material.EnableKeyword("_POM");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SetKeyword(material, "_DETAIL_MULX2", material.GetFloat("_DetailMode") == 0 && (material.GetTexture("_DetailAlbedoMap") || material.GetTexture("_DetailNormalMap")));
|
||
|
|
SetKeyword(material, "_DETAIL_SINGLE", material.GetFloat("_DetailMode") == 1 && (material.GetTexture("_DetailAlbedoSingle") || material.GetTexture("_DetailNormalSingle")));
|
||
|
|
|
||
|
|
// 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);
|
||
|
|
float emode = material.GetFloat("_EmissionMode");
|
||
|
|
SetKeyword(material, "_EMISSION", emode == 2 && material.GetTexture("_EmissionMap") != null);
|
||
|
|
SetKeyword(material, "_EMISSION_COLOR", emode == 1);
|
||
|
|
|
||
|
|
if (material.HasProperty("_SmoothnessTextureChannel"))
|
||
|
|
{
|
||
|
|
SetKeyword(material, "_SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A", GetSmoothnessMapChannel(material) == SmoothnessMapChannel.AlbedoAlpha);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public 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);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|