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