using System; using UnityEngine; using UnityEngine.Rendering; namespace UnityEditor.Experimental.ScriptableRenderLoop { public abstract class BaseLitGUI : ShaderGUI { protected static class Styles { public static string OptionText = "Options"; public static string SurfaceTypeText = "Surface Type"; public static string BlendModeText = "Blend Mode"; public static string detailText = "Inputs Detail"; public static string lightingText = "Inputs Lighting"; public static GUIContent alphaCutoffEnableText = new GUIContent("Alpha Cutoff Enable", "Threshold for alpha cutoff"); public static GUIContent alphaCutoffText = new GUIContent("Alpha Cutoff", "Threshold for alpha cutoff"); public static GUIContent doubleSidedModeText = new GUIContent("Double Sided", "This will render the two face of the objects (disable backface culling)"); public static GUIContent distortionEnableText = new GUIContent("Distortion", "Enable distortion on this shader"); public static GUIContent distortionOnlyText = new GUIContent("Distortion Only", "This shader will only be use to render distortion"); public static GUIContent distortionDepthTestText = new GUIContent("Distortion Depth Test", "Enable the depth test for distortion"); public static GUIContent depthOffsetEnableText = new GUIContent("DepthOffset", "EnableDepthOffset on this shader (Use with heightmap)"); public static readonly string[] surfaceTypeNames = Enum.GetNames(typeof(SurfaceType)); public static readonly string[] blendModeNames = Enum.GetNames(typeof(BlendMode)); public static string InputsOptionsText = "Inputs options"; public static GUIContent smoothnessMapChannelText = new GUIContent("Smoothness Source", "Smoothness texture and channel"); public static GUIContent UVBaseMappingText = new GUIContent("UV set for Base", ""); public static GUIContent texWorldScaleText = new GUIContent("Tiling", "Tiling factor applied to Planar/Trilinear mapping"); public static GUIContent UVBaseDetailMappingText = new GUIContent("UV set for Base and Detail", ""); public static GUIContent normalMapSpaceText = new GUIContent("Normal/Tangent Map space", ""); public static GUIContent heightMapModeText = new GUIContent("Height Map Mode", ""); public static GUIContent detailMapModeText = new GUIContent("Detail Map with Normal", "Detail Map with AO / Height"); public static GUIContent UVDetailMappingText = new GUIContent("UV set for Detail", ""); public static GUIContent emissiveColorModeText = new GUIContent("Emissive Color Usage", "Use emissive color or emissive mask"); public static string InputsText = "Inputs"; public static string InputsMapText = ""; public static GUIContent baseColorText = new GUIContent("Base Color + Opacity", "Albedo (RGB) and Opacity (A)"); public static GUIContent baseColorSmoothnessText = new GUIContent("Base Color + Smoothness", "Albedo (RGB) and Smoothness (A)"); public static GUIContent metallicText = new GUIContent("Metallic", "Metallic scale factor"); public static GUIContent smoothnessText = new GUIContent("Smoothness", "Smoothness scale factor"); public static GUIContent maskMapESText = new GUIContent("Mask Map - M(R), AO(G), E(B), S(A)", "Mask map"); public static GUIContent maskMapEText = new GUIContent("Mask Map - M(R), AO(G), E(B)", "Mask map"); public static GUIContent maskMapText = new GUIContent("Mask Map - M(R), AO(G)", "Mask map"); public static GUIContent maskMapSText = new GUIContent("Mask Map - M(R), AO(G), S(A)", "Mask map"); public static GUIContent specularOcclusionMapText = new GUIContent("Specular Occlusion Map (RGBA)", "Specular Occlusion Map"); public static GUIContent normalMapText = new GUIContent("Normal Map", "Normal Map (DXT5) - Need to implement BC5"); public static GUIContent heightMapText = new GUIContent("Height Map (R)", "Height Map"); public static GUIContent tangentMapText = new GUIContent("Tangent Map", "Tangent Map (BC5) - DXT5 for test"); public static GUIContent anisotropyText = new GUIContent("Anisotropy", "Anisotropy scale factor"); public static GUIContent anisotropyMapText = new GUIContent("Anisotropy Map (G)", "Anisotropy"); public static GUIContent detailMapNormalText = new GUIContent("Detail Map A(R) Ny(G) S(B) Nx(A)", "Detail Map"); public static GUIContent detailMapAOHeightText = new GUIContent("Detail Map A(R) AO(G) S(B) H(A)", "Detail Map"); public static GUIContent detailMaskText = new GUIContent("Detail Mask (B)", "Mask for detailMap"); public static GUIContent detailAlbedoScaleText = new GUIContent("Detail AlbedoScale", "Detail Albedo Scale factor"); public static GUIContent detailNormalScaleText = new GUIContent("Detail NormalScale", "Normal Scale factor"); public static GUIContent detailSmoothnessScaleText = new GUIContent("Detail SmoothnessScale", "Smoothness Scale factor"); public static GUIContent detailHeightScaleText = new GUIContent("Detail HeightScale", "Height Scale factor"); public static GUIContent detailAOScaleText = new GUIContent("Detail AOScale", "AO Scale factor"); public static GUIContent emissiveText = new GUIContent("Emissive Color", "Emissive"); public static GUIContent emissiveIntensityText = new GUIContent("Emissive Intensity", "Emissive"); 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."); public static GUIContent emissiveColorWarning = new GUIContent("Ensure emissive color is non-black for emission to have effect."); } public enum SurfaceType { Opaque, Transparent } public enum BlendMode { Lerp, Add, SoftAdd, Multiply, Premultiply } public enum DoubleSidedMode { None, DoubleSided, DoubleSidedLightingFlip, DoubleSidedLightingMirror, } void SurfaceTypePopup() { EditorGUI.showMixedValue = surfaceType.hasMixedValue; var mode = (SurfaceType)surfaceType.floatValue; EditorGUI.BeginChangeCheck(); mode = (SurfaceType)EditorGUILayout.Popup(Styles.SurfaceTypeText, (int)mode, Styles.surfaceTypeNames); if (EditorGUI.EndChangeCheck()) { m_MaterialEditor.RegisterPropertyChangeUndo("Surface Type"); surfaceType.floatValue = (float)mode; } EditorGUI.showMixedValue = false; } protected void ShaderOptionsGUI() { EditorGUI.indentLevel++; GUILayout.Label(Styles.OptionText, EditorStyles.boldLabel); SurfaceTypePopup(); if ((SurfaceType)surfaceType.floatValue == SurfaceType.Transparent) { BlendModePopup(); m_MaterialEditor.ShaderProperty(distortionEnable, Styles.distortionEnableText.text); if (distortionEnable.floatValue == 1.0) { m_MaterialEditor.ShaderProperty(distortionOnly, Styles.distortionOnlyText.text); m_MaterialEditor.ShaderProperty(distortionDepthTest, Styles.distortionDepthTestText.text); } } m_MaterialEditor.ShaderProperty(alphaCutoffEnable, Styles.alphaCutoffEnableText.text); if (alphaCutoffEnable.floatValue == 1.0) { m_MaterialEditor.ShaderProperty(alphaCutoff, Styles.alphaCutoffText.text); } m_MaterialEditor.ShaderProperty(doubleSidedMode, Styles.doubleSidedModeText.text); m_MaterialEditor.ShaderProperty(depthOffsetEnable, Styles.depthOffsetEnableText.text); EditorGUI.indentLevel--; } private void BlendModePopup() { EditorGUI.showMixedValue = blendMode.hasMixedValue; var mode = (BlendMode)blendMode.floatValue; EditorGUI.BeginChangeCheck(); mode = (BlendMode)EditorGUILayout.Popup(Styles.BlendModeText, (int)mode, Styles.blendModeNames); if (EditorGUI.EndChangeCheck()) { m_MaterialEditor.RegisterPropertyChangeUndo("Blend Mode"); blendMode.floatValue = (float)mode; } EditorGUI.showMixedValue = false; } protected void FindCommonOptionProperties(MaterialProperty[] props) { surfaceType = FindProperty(kSurfaceType, props); blendMode = FindProperty(kBlendMode, props); alphaCutoff = FindProperty(kAlphaCutoff, props); alphaCutoffEnable = FindProperty(kAlphaCutoffEnabled, props); doubleSidedMode = FindProperty(kDoubleSidedMode, props); distortionEnable = FindProperty(kDistortionEnable, props); distortionOnly = FindProperty(kDistortionOnly, props); distortionDepthTest = FindProperty(kDistortionDepthTest, props); depthOffsetEnable = FindProperty(kDepthOffsetEnable, props); } protected void SetupCommonOptionsKeywords(Material material) { bool alphaTestEnable = material.GetFloat(kAlphaCutoffEnabled) == 1.0; SurfaceType surfaceType = (SurfaceType)material.GetFloat(kSurfaceType); BlendMode blendMode = (BlendMode)material.GetFloat(kBlendMode); DoubleSidedMode doubleSidedMode = (DoubleSidedMode)material.GetFloat(kDoubleSidedMode); if (surfaceType == SurfaceType.Opaque) { material.SetOverrideTag("RenderType", alphaTestEnable ? "TransparentCutout" : ""); material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero); material.SetInt("_ZWrite", 1); material.renderQueue = alphaTestEnable ? (int)UnityEngine.Rendering.RenderQueue.AlphaTest : -1; } else { material.SetOverrideTag("RenderType", "Transparent"); material.SetInt("_ZWrite", 0); material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent; switch (blendMode) { case BlendMode.Lerp: material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha); break; case BlendMode.Add: material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.One); break; case BlendMode.SoftAdd: material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusDstColor); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.One); break; case BlendMode.Multiply: material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.DstColor); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero); break; case BlendMode.Premultiply: material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha); break; } } if (doubleSidedMode == DoubleSidedMode.None) { material.SetInt("_CullMode", (int)UnityEngine.Rendering.CullMode.Back); } else { material.SetInt("_CullMode", (int)UnityEngine.Rendering.CullMode.Off); } if (doubleSidedMode == DoubleSidedMode.DoubleSidedLightingFlip) { material.EnableKeyword("_DOUBLESIDED_LIGHTING_FLIP"); material.DisableKeyword("_DOUBLESIDED_LIGHTING_MIRROR"); } else if (doubleSidedMode == DoubleSidedMode.DoubleSidedLightingMirror) { material.DisableKeyword("_DOUBLESIDED_LIGHTING_FLIP"); material.EnableKeyword("_DOUBLESIDED_LIGHTING_MIRROR"); } else { material.DisableKeyword("_DOUBLESIDED_LIGHTING_FLIP"); material.DisableKeyword("_DOUBLESIDED_LIGHTING_MIRROR"); } SetKeyword(material, "_ALPHATEST_ON", alphaTestEnable); bool distortionEnable = material.GetFloat(kDistortionEnable) == 1.0; bool distortionOnly = material.GetFloat(kDistortionOnly) == 1.0; bool distortionDepthTest = material.GetFloat(kDistortionDepthTest) == 1.0; bool depthOffsetEnable = material.GetFloat(kDepthOffsetEnable) == 1.0; if (distortionEnable) { material.SetShaderPassEnabled("DistortionVectors", true); } else { material.SetShaderPassEnabled("DistortionVectors", false); } if (distortionEnable && distortionOnly) { // Disable all passes except dbug material material.SetShaderPassEnabled("GBuffer", false); material.SetShaderPassEnabled("DebugViewMaterial", true); material.SetShaderPassEnabled("Meta", false); material.SetShaderPassEnabled("ShadowCaster", false); material.SetShaderPassEnabled("DepthOnly", false); material.SetShaderPassEnabled("MotionVectors", false); material.SetShaderPassEnabled("Forward", false); } else { material.SetShaderPassEnabled("GBuffer", true); material.SetShaderPassEnabled("DebugViewMaterial", true); material.SetShaderPassEnabled("Meta", true); material.SetShaderPassEnabled("ShadowCaster", true); material.SetShaderPassEnabled("DepthOnly", true); material.SetShaderPassEnabled("MotionVectors", true); material.SetShaderPassEnabled("Forward", true); } if (distortionDepthTest) { material.SetInt("_ZTestMode", (int)UnityEngine.Rendering.CompareFunction.LessEqual); } else { material.SetInt("_ZTestMode", (int)UnityEngine.Rendering.CompareFunction.Always); } SetKeyword(material, "_DISTORTION_ON", distortionEnable); SetKeyword(material, "_DEPTHOFFSET_ON", depthOffsetEnable); SetupEmissionGIFlags(material); } protected void SetKeyword(Material m, string keyword, bool state) { if (state) m.EnableKeyword(keyword); else m.DisableKeyword(keyword); } public void ShaderPropertiesGUI(Material material) { // Use default labelWidth EditorGUIUtility.labelWidth = 0f; // Detect any changes to the material EditorGUI.BeginChangeCheck(); { ShaderOptionsGUI(); EditorGUILayout.Space(); ShaderInputOptionsGUI(); EditorGUILayout.Space(); ShaderInputGUI(); } if (EditorGUI.EndChangeCheck()) { foreach (var obj in m_MaterialEditor.targets) SetupMaterialKeywords((Material)obj); } } public override void OnGUI(MaterialEditor materialEditor, MaterialProperty[] props) { FindCommonOptionProperties(props); // MaterialProperties can be animated so we do not cache them but fetch them every event to ensure animated values are updated correctly FindMaterialProperties(props); m_MaterialEditor = materialEditor; Material material = materialEditor.target as Material; ShaderPropertiesGUI(material); } // TODO: ? or remove bool HasValidEmissiveKeyword(Material material) { /* // Material animation might be out of sync with the material keyword. // So if the emission support is disabled on the material, but the property blocks have a value that requires it, then we need to show a warning. // (note: (Renderer MaterialPropertyBlock applies its values to emissionColorForRendering)) bool hasEmissionKeyword = material.IsKeywordEnabled ("_EMISSION"); if (!hasEmissionKeyword && ShouldEmissionBeEnabled (material, emissionColorForRendering.colorValue)) return false; else return true; */ return true; } protected virtual void SetupEmissionGIFlags(Material material) { // Setup lightmap emissive flags MaterialGlobalIlluminationFlags flags = material.globalIlluminationFlags; if ((flags & (MaterialGlobalIlluminationFlags.BakedEmissive | MaterialGlobalIlluminationFlags.RealtimeEmissive)) != 0) { if (ShouldEmissionBeEnabled(material)) flags &= ~MaterialGlobalIlluminationFlags.EmissiveIsBlack; else flags |= MaterialGlobalIlluminationFlags.EmissiveIsBlack; material.globalIlluminationFlags = flags; } } protected MaterialEditor m_MaterialEditor; MaterialProperty surfaceType = null; MaterialProperty alphaCutoffEnable = null; MaterialProperty blendMode = null; MaterialProperty alphaCutoff = null; MaterialProperty doubleSidedMode = null; MaterialProperty distortionEnable = null; MaterialProperty distortionOnly = null; MaterialProperty distortionDepthTest = null; MaterialProperty depthOffsetEnable = null; const string kSurfaceType = "_SurfaceType"; const string kBlendMode = "_BlendMode"; const string kAlphaCutoff = "_AlphaCutoff"; const string kAlphaCutoffEnabled = "_AlphaCutoffEnable"; const string kDoubleSidedMode = "_DoubleSidedMode"; const string kDistortionEnable = "_DistortionEnable"; const string kDistortionOnly = "_DistortionOnly"; const string kDistortionDepthTest = "_DistortionDepthTest"; const string kDepthOffsetEnable = "_DepthOffsetEnable"; protected static string[] reservedProperties = new string[] { kSurfaceType, kBlendMode, kAlphaCutoff, kAlphaCutoffEnabled, kDoubleSidedMode }; protected abstract void FindMaterialProperties(MaterialProperty[] props); protected abstract void ShaderInputGUI(); protected abstract void ShaderInputOptionsGUI(); protected abstract void SetupMaterialKeywords(Material material); protected abstract bool ShouldEmissionBeEnabled(Material material); } } // namespace UnityEditor