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672 lines
28 KiB
672 lines
28 KiB
using UnityEngine;
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using UnityEngine.PostProcessing;
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using System;
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using System.Collections.Generic;
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using System.Linq.Expressions;
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namespace UnityEditor.PostProcessing
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{
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using Settings = ColorGradingModel.Settings;
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using Tonemapper = ColorGradingModel.Tonemapper;
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using ColorWheelMode = ColorGradingModel.ColorWheelMode;
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[PostProcessingModelEditor(typeof(ColorGradingModel))]
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public class ColorGradingModelEditor : PostProcessingModelEditor
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{
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static GUIContent[] s_Tonemappers =
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{
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new GUIContent("None"),
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new GUIContent("Filmic (ACES)"),
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new GUIContent("Neutral")
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};
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struct TonemappingSettings
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{
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public SerializedProperty tonemapper;
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public SerializedProperty neutralBlackIn;
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public SerializedProperty neutralWhiteIn;
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public SerializedProperty neutralBlackOut;
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public SerializedProperty neutralWhiteOut;
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public SerializedProperty neutralWhiteLevel;
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public SerializedProperty neutralWhiteClip;
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}
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struct BasicSettings
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{
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public SerializedProperty exposure;
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public SerializedProperty temperature;
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public SerializedProperty tint;
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public SerializedProperty hueShift;
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public SerializedProperty saturation;
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public SerializedProperty contrast;
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}
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struct ChannelMixerSettings
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{
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public SerializedProperty[] channels;
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public SerializedProperty currentEditingChannel;
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}
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struct ColorWheelsSettings
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{
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public SerializedProperty mode;
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public SerializedProperty log;
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public SerializedProperty linear;
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}
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static GUIContent[] s_Curves =
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{
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new GUIContent("YRGB"),
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new GUIContent("Hue VS Hue"),
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new GUIContent("Hue VS Sat"),
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new GUIContent("Sat VS Sat"),
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new GUIContent("Lum VS Sat")
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};
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struct CurvesSettings
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{
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public SerializedProperty master;
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public SerializedProperty red;
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public SerializedProperty green;
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public SerializedProperty blue;
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public SerializedProperty hueVShue;
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public SerializedProperty hueVSsat;
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public SerializedProperty satVSsat;
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public SerializedProperty lumVSsat;
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public SerializedProperty currentEditingCurve;
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public SerializedProperty curveY;
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public SerializedProperty curveR;
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public SerializedProperty curveG;
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public SerializedProperty curveB;
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}
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TonemappingSettings m_Tonemapping;
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BasicSettings m_Basic;
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ChannelMixerSettings m_ChannelMixer;
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ColorWheelsSettings m_ColorWheels;
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CurvesSettings m_Curves;
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CurveEditor m_CurveEditor;
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Dictionary<SerializedProperty, Color> m_CurveDict;
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// Neutral tonemapping curve helper
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const int k_CurveResolution = 24;
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const float k_NeutralRangeX = 2f;
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const float k_NeutralRangeY = 1f;
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Vector3[] m_RectVertices = new Vector3[4];
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Vector3[] m_LineVertices = new Vector3[2];
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Vector3[] m_CurveVertices = new Vector3[k_CurveResolution];
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Rect m_NeutralCurveRect;
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public override void OnEnable()
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{
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// Tonemapping settings
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m_Tonemapping = new TonemappingSettings
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{
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tonemapper = FindSetting((Settings x) => x.tonemapping.tonemapper),
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neutralBlackIn = FindSetting((Settings x) => x.tonemapping.neutralBlackIn),
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neutralWhiteIn = FindSetting((Settings x) => x.tonemapping.neutralWhiteIn),
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neutralBlackOut = FindSetting((Settings x) => x.tonemapping.neutralBlackOut),
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neutralWhiteOut = FindSetting((Settings x) => x.tonemapping.neutralWhiteOut),
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neutralWhiteLevel = FindSetting((Settings x) => x.tonemapping.neutralWhiteLevel),
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neutralWhiteClip = FindSetting((Settings x) => x.tonemapping.neutralWhiteClip)
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};
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// Basic settings
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m_Basic = new BasicSettings
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{
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exposure = FindSetting((Settings x) => x.basic.postExposure),
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temperature = FindSetting((Settings x) => x.basic.temperature),
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tint = FindSetting((Settings x) => x.basic.tint),
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hueShift = FindSetting((Settings x) => x.basic.hueShift),
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saturation = FindSetting((Settings x) => x.basic.saturation),
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contrast = FindSetting((Settings x) => x.basic.contrast)
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};
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// Channel mixer
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m_ChannelMixer = new ChannelMixerSettings
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{
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channels = new[]
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{
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FindSetting((Settings x) => x.channelMixer.red),
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FindSetting((Settings x) => x.channelMixer.green),
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FindSetting((Settings x) => x.channelMixer.blue)
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},
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currentEditingChannel = FindSetting((Settings x) => x.channelMixer.currentEditingChannel)
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};
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// Color wheels
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m_ColorWheels = new ColorWheelsSettings
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{
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mode = FindSetting((Settings x) => x.colorWheels.mode),
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log = FindSetting((Settings x) => x.colorWheels.log),
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linear = FindSetting((Settings x) => x.colorWheels.linear)
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};
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// Curves
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m_Curves = new CurvesSettings
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{
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master = FindSetting((Settings x) => x.curves.master.curve),
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red = FindSetting((Settings x) => x.curves.red.curve),
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green = FindSetting((Settings x) => x.curves.green.curve),
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blue = FindSetting((Settings x) => x.curves.blue.curve),
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hueVShue = FindSetting((Settings x) => x.curves.hueVShue.curve),
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hueVSsat = FindSetting((Settings x) => x.curves.hueVSsat.curve),
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satVSsat = FindSetting((Settings x) => x.curves.satVSsat.curve),
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lumVSsat = FindSetting((Settings x) => x.curves.lumVSsat.curve),
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currentEditingCurve = FindSetting((Settings x) => x.curves.e_CurrentEditingCurve),
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curveY = FindSetting((Settings x) => x.curves.e_CurveY),
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curveR = FindSetting((Settings x) => x.curves.e_CurveR),
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curveG = FindSetting((Settings x) => x.curves.e_CurveG),
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curveB = FindSetting((Settings x) => x.curves.e_CurveB)
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};
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// Prepare the curve editor and extract curve display settings
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m_CurveDict = new Dictionary<SerializedProperty, Color>();
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var settings = CurveEditor.Settings.defaultSettings;
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m_CurveEditor = new CurveEditor(settings);
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AddCurve(m_Curves.master, new Color(1f, 1f, 1f), 2, false);
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AddCurve(m_Curves.red, new Color(1f, 0f, 0f), 2, false);
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AddCurve(m_Curves.green, new Color(0f, 1f, 0f), 2, false);
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AddCurve(m_Curves.blue, new Color(0f, 0.5f, 1f), 2, false);
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AddCurve(m_Curves.hueVShue, new Color(1f, 1f, 1f), 0, true);
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AddCurve(m_Curves.hueVSsat, new Color(1f, 1f, 1f), 0, true);
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AddCurve(m_Curves.satVSsat, new Color(1f, 1f, 1f), 0, false);
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AddCurve(m_Curves.lumVSsat, new Color(1f, 1f, 1f), 0, false);
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}
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void AddCurve(SerializedProperty prop, Color color, uint minPointCount, bool loop)
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{
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var state = CurveEditor.CurveState.defaultState;
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state.color = color;
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state.visible = false;
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state.minPointCount = minPointCount;
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state.onlyShowHandlesOnSelection = true;
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state.zeroKeyConstantValue = 0.5f;
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state.loopInBounds = loop;
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m_CurveEditor.Add(prop, state);
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m_CurveDict.Add(prop, color);
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}
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public override void OnDisable()
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{
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m_CurveEditor.RemoveAll();
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}
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public override void OnInspectorGUI()
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{
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DoGUIFor("Tonemapping", DoTonemappingGUI);
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EditorGUILayout.Space();
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DoGUIFor("Basic", DoBasicGUI);
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EditorGUILayout.Space();
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DoGUIFor("Channel Mixer", DoChannelMixerGUI);
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EditorGUILayout.Space();
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DoGUIFor("Trackballs", DoColorWheelsGUI);
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EditorGUILayout.Space();
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DoGUIFor("Grading Curves", DoCurvesGUI);
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}
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void DoGUIFor(string title, Action func)
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{
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EditorGUILayout.LabelField(title, EditorStyles.boldLabel);
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EditorGUI.indentLevel++;
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func();
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EditorGUI.indentLevel--;
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}
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void DoTonemappingGUI()
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{
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int tid = EditorGUILayout.Popup(EditorGUIHelper.GetContent("Tonemapper"), m_Tonemapping.tonemapper.intValue, s_Tonemappers);
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if (tid == (int)Tonemapper.Neutral)
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{
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DrawNeutralTonemappingCurve();
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EditorGUILayout.PropertyField(m_Tonemapping.neutralBlackIn, EditorGUIHelper.GetContent("Black In"));
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EditorGUILayout.PropertyField(m_Tonemapping.neutralWhiteIn, EditorGUIHelper.GetContent("White In"));
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EditorGUILayout.PropertyField(m_Tonemapping.neutralBlackOut, EditorGUIHelper.GetContent("Black Out"));
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EditorGUILayout.PropertyField(m_Tonemapping.neutralWhiteOut, EditorGUIHelper.GetContent("White Out"));
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EditorGUILayout.PropertyField(m_Tonemapping.neutralWhiteLevel, EditorGUIHelper.GetContent("White Level"));
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EditorGUILayout.PropertyField(m_Tonemapping.neutralWhiteClip, EditorGUIHelper.GetContent("White Clip"));
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}
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m_Tonemapping.tonemapper.intValue = tid;
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}
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void DrawNeutralTonemappingCurve()
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{
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using (new GUILayout.HorizontalScope())
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{
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GUILayout.Space(EditorGUI.indentLevel * 15f);
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m_NeutralCurveRect = GUILayoutUtility.GetRect(128, 80);
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}
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// Background
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m_RectVertices[0] = PointInRect( 0f, 0f);
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m_RectVertices[1] = PointInRect(k_NeutralRangeX, 0f);
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m_RectVertices[2] = PointInRect(k_NeutralRangeX, k_NeutralRangeY);
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m_RectVertices[3] = PointInRect( 0f, k_NeutralRangeY);
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Handles.DrawSolidRectangleWithOutline(
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m_RectVertices,
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Color.white * 0.1f,
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Color.white * 0.4f
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);
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// Horizontal lines
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for (var i = 1; i < k_NeutralRangeY; i++)
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DrawLine(0, i, k_NeutralRangeX, i, 0.4f);
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// Vertical lines
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for (var i = 1; i < k_NeutralRangeX; i++)
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DrawLine(i, 0, i, k_NeutralRangeY, 0.4f);
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// Label
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Handles.Label(
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PointInRect(0, k_NeutralRangeY) + Vector3.right,
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"Neutral Tonemapper", EditorStyles.miniLabel
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);
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// Precompute some values
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var tonemap = ((ColorGradingModel)target).settings.tonemapping;
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const float scaleFactor = 20f;
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const float scaleFactorHalf = scaleFactor * 0.5f;
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float inBlack = tonemap.neutralBlackIn * scaleFactor + 1f;
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float outBlack = tonemap.neutralBlackOut * scaleFactorHalf + 1f;
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float inWhite = tonemap.neutralWhiteIn / scaleFactor;
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float outWhite = 1f - tonemap.neutralWhiteOut / scaleFactor;
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float blackRatio = inBlack / outBlack;
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float whiteRatio = inWhite / outWhite;
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const float a = 0.2f;
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float b = Mathf.Max(0f, Mathf.LerpUnclamped(0.57f, 0.37f, blackRatio));
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float c = Mathf.LerpUnclamped(0.01f, 0.24f, whiteRatio);
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float d = Mathf.Max(0f, Mathf.LerpUnclamped(0.02f, 0.20f, blackRatio));
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const float e = 0.02f;
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const float f = 0.30f;
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float whiteLevel = tonemap.neutralWhiteLevel;
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float whiteClip = tonemap.neutralWhiteClip / scaleFactorHalf;
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// Tonemapping curve
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var vcount = 0;
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while (vcount < k_CurveResolution)
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{
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float x = k_NeutralRangeX * vcount / (k_CurveResolution - 1);
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float y = NeutralTonemap(x, a, b, c, d, e, f, whiteLevel, whiteClip);
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if (y < k_NeutralRangeY)
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{
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m_CurveVertices[vcount++] = PointInRect(x, y);
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}
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else
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{
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if (vcount > 1)
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{
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// Extend the last segment to the top edge of the rect.
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var v1 = m_CurveVertices[vcount - 2];
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var v2 = m_CurveVertices[vcount - 1];
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var clip = (m_NeutralCurveRect.y - v1.y) / (v2.y - v1.y);
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m_CurveVertices[vcount - 1] = v1 + (v2 - v1) * clip;
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}
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break;
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}
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}
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if (vcount > 1)
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{
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Handles.color = Color.white * 0.9f;
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Handles.DrawAAPolyLine(2.0f, vcount, m_CurveVertices);
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}
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}
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void DrawLine(float x1, float y1, float x2, float y2, float grayscale)
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{
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m_LineVertices[0] = PointInRect(x1, y1);
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m_LineVertices[1] = PointInRect(x2, y2);
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Handles.color = Color.white * grayscale;
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Handles.DrawAAPolyLine(2f, m_LineVertices);
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}
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Vector3 PointInRect(float x, float y)
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{
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x = Mathf.Lerp(m_NeutralCurveRect.x, m_NeutralCurveRect.xMax, x / k_NeutralRangeX);
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y = Mathf.Lerp(m_NeutralCurveRect.yMax, m_NeutralCurveRect.y, y / k_NeutralRangeY);
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return new Vector3(x, y, 0);
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}
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float NeutralCurve(float x, float a, float b, float c, float d, float e, float f)
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{
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return ((x * (a * x + c * b) + d * e) / (x * (a * x + b) + d * f)) - e / f;
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}
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float NeutralTonemap(float x, float a, float b, float c, float d, float e, float f, float whiteLevel, float whiteClip)
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{
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x = Mathf.Max(0f, x);
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// Tonemap
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float whiteScale = 1f / NeutralCurve(whiteLevel, a, b, c, d, e, f);
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x = NeutralCurve(x * whiteScale, a, b, c, d, e, f);
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x *= whiteScale;
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// Post-curve white point adjustment
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x /= whiteClip;
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return x;
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}
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void DoBasicGUI()
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{
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EditorGUILayout.PropertyField(m_Basic.exposure, EditorGUIHelper.GetContent("Post Exposure (EV)"));
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EditorGUILayout.PropertyField(m_Basic.temperature);
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EditorGUILayout.PropertyField(m_Basic.tint);
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EditorGUILayout.PropertyField(m_Basic.hueShift);
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EditorGUILayout.PropertyField(m_Basic.saturation);
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EditorGUILayout.PropertyField(m_Basic.contrast);
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}
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void DoChannelMixerGUI()
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{
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int currentChannel = m_ChannelMixer.currentEditingChannel.intValue;
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EditorGUI.BeginChangeCheck();
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{
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using (new EditorGUILayout.HorizontalScope())
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{
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EditorGUILayout.PrefixLabel("Channel");
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if (GUILayout.Toggle(currentChannel == 0, EditorGUIHelper.GetContent("Red|Red output channel."), EditorStyles.miniButtonLeft)) currentChannel = 0;
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if (GUILayout.Toggle(currentChannel == 1, EditorGUIHelper.GetContent("Green|Green output channel."), EditorStyles.miniButtonMid)) currentChannel = 1;
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if (GUILayout.Toggle(currentChannel == 2, EditorGUIHelper.GetContent("Blue|Blue output channel."), EditorStyles.miniButtonRight)) currentChannel = 2;
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}
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}
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if (EditorGUI.EndChangeCheck())
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{
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GUI.FocusControl(null);
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}
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var serializedChannel = m_ChannelMixer.channels[currentChannel];
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m_ChannelMixer.currentEditingChannel.intValue = currentChannel;
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var v = serializedChannel.vector3Value;
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v.x = EditorGUILayout.Slider(EditorGUIHelper.GetContent("Red|Modify influence of the red channel within the overall mix."), v.x, -2f, 2f);
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v.y = EditorGUILayout.Slider(EditorGUIHelper.GetContent("Green|Modify influence of the green channel within the overall mix."), v.y, -2f, 2f);
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v.z = EditorGUILayout.Slider(EditorGUIHelper.GetContent("Blue|Modify influence of the blue channel within the overall mix."), v.z, -2f, 2f);
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serializedChannel.vector3Value = v;
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}
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void DoColorWheelsGUI()
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{
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int wheelMode = m_ColorWheels.mode.intValue;
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using (new EditorGUILayout.HorizontalScope())
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{
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GUILayout.Space(15);
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if (GUILayout.Toggle(wheelMode == (int)ColorWheelMode.Linear, "Linear", EditorStyles.miniButtonLeft)) wheelMode = (int)ColorWheelMode.Linear;
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if (GUILayout.Toggle(wheelMode == (int)ColorWheelMode.Log, "Log", EditorStyles.miniButtonRight)) wheelMode = (int)ColorWheelMode.Log;
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}
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m_ColorWheels.mode.intValue = wheelMode;
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EditorGUILayout.Space();
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if (wheelMode == (int)ColorWheelMode.Linear)
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{
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EditorGUILayout.PropertyField(m_ColorWheels.linear);
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WheelSetTitle(GUILayoutUtility.GetLastRect(), "Linear Controls");
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}
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else if (wheelMode == (int)ColorWheelMode.Log)
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{
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EditorGUILayout.PropertyField(m_ColorWheels.log);
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WheelSetTitle(GUILayoutUtility.GetLastRect(), "Log Controls");
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}
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}
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static void WheelSetTitle(Rect position, string label)
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{
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var matrix = GUI.matrix;
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var rect = new Rect(position.x - 10f, position.y, TrackballGroupDrawer.m_Size, TrackballGroupDrawer.m_Size);
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GUIUtility.RotateAroundPivot(-90f, rect.center);
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GUI.Label(rect, label, FxStyles.centeredMiniLabel);
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GUI.matrix = matrix;
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}
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void ResetVisibleCurves()
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{
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foreach (var curve in m_CurveDict)
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{
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var state = m_CurveEditor.GetCurveState(curve.Key);
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state.visible = false;
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m_CurveEditor.SetCurveState(curve.Key, state);
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}
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}
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void SetCurveVisible(SerializedProperty prop)
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{
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var state = m_CurveEditor.GetCurveState(prop);
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state.visible = true;
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m_CurveEditor.SetCurveState(prop, state);
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}
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bool SpecialToggle(bool value, string name, out bool rightClicked)
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{
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var rect = GUILayoutUtility.GetRect(EditorGUIHelper.GetContent(name), EditorStyles.toolbarButton);
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var e = Event.current;
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rightClicked = (e.type == EventType.MouseUp && rect.Contains(e.mousePosition) && e.button == 1);
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return GUI.Toggle(rect, value, name, EditorStyles.toolbarButton);
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}
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static Material s_MaterialSpline;
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void DoCurvesGUI()
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{
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EditorGUILayout.Space();
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EditorGUI.indentLevel -= 2;
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ResetVisibleCurves();
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using (new EditorGUI.DisabledGroupScope(serializedProperty.serializedObject.isEditingMultipleObjects))
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{
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int curveEditingId = 0;
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// Top toolbar
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using (new GUILayout.HorizontalScope(EditorStyles.toolbar))
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{
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curveEditingId = EditorGUILayout.Popup(m_Curves.currentEditingCurve.intValue, s_Curves, EditorStyles.toolbarPopup, GUILayout.MaxWidth(150f));
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bool y = false, r = false, g = false, b = false;
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if (curveEditingId == 0)
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{
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EditorGUILayout.Space();
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bool rightClickedY, rightClickedR, rightClickedG, rightClickedB;
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y = SpecialToggle(m_Curves.curveY.boolValue, "Y", out rightClickedY);
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r = SpecialToggle(m_Curves.curveR.boolValue, "R", out rightClickedR);
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g = SpecialToggle(m_Curves.curveG.boolValue, "G", out rightClickedG);
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b = SpecialToggle(m_Curves.curveB.boolValue, "B", out rightClickedB);
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if (!y && !r && !g && !b)
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{
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r = g = b = false;
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y = true;
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}
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if (rightClickedY || rightClickedR || rightClickedG || rightClickedB)
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{
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y = rightClickedY;
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r = rightClickedR;
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g = rightClickedG;
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b = rightClickedB;
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}
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if (y) SetCurveVisible(m_Curves.master);
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if (r) SetCurveVisible(m_Curves.red);
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if (g) SetCurveVisible(m_Curves.green);
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if (b) SetCurveVisible(m_Curves.blue);
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m_Curves.curveY.boolValue = y;
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m_Curves.curveR.boolValue = r;
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m_Curves.curveG.boolValue = g;
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m_Curves.curveB.boolValue = b;
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}
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else
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{
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switch (curveEditingId)
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{
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case 1: SetCurveVisible(m_Curves.hueVShue);
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break;
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case 2: SetCurveVisible(m_Curves.hueVSsat);
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break;
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case 3: SetCurveVisible(m_Curves.satVSsat);
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break;
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case 4: SetCurveVisible(m_Curves.lumVSsat);
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break;
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}
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}
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GUILayout.FlexibleSpace();
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if (GUILayout.Button("Reset", EditorStyles.toolbarButton))
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{
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switch (curveEditingId)
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{
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case 0:
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if (y) m_Curves.master.animationCurveValue = AnimationCurve.Linear(0f, 0f, 1f, 1f);
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if (r) m_Curves.red.animationCurveValue = AnimationCurve.Linear(0f, 0f, 1f, 1f);
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if (g) m_Curves.green.animationCurveValue = AnimationCurve.Linear(0f, 0f, 1f, 1f);
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if (b) m_Curves.blue.animationCurveValue = AnimationCurve.Linear(0f, 0f, 1f, 1f);
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break;
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case 1: m_Curves.hueVShue.animationCurveValue = new AnimationCurve();
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break;
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case 2: m_Curves.hueVSsat.animationCurveValue = new AnimationCurve();
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break;
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case 3: m_Curves.satVSsat.animationCurveValue = new AnimationCurve();
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break;
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case 4: m_Curves.lumVSsat.animationCurveValue = new AnimationCurve();
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break;
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}
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}
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m_Curves.currentEditingCurve.intValue = curveEditingId;
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}
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// Curve area
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var settings = m_CurveEditor.settings;
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var rect = GUILayoutUtility.GetAspectRect(2f);
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var innerRect = settings.padding.Remove(rect);
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if (Event.current.type == EventType.Repaint)
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{
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// Background
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EditorGUI.DrawRect(rect, new Color(0.15f, 0.15f, 0.15f, 1f));
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if (s_MaterialSpline == null)
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s_MaterialSpline = new Material(Shader.Find("Hidden/Post FX/UI/Curve Background")) { hideFlags = HideFlags.HideAndDontSave };
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if (curveEditingId == 1 || curveEditingId == 2)
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DrawBackgroundTexture(innerRect, 0);
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else if (curveEditingId == 3 || curveEditingId == 4)
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DrawBackgroundTexture(innerRect, 1);
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// Bounds
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Handles.color = Color.white;
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Handles.DrawSolidRectangleWithOutline(innerRect, Color.clear, new Color(0.8f, 0.8f, 0.8f, 0.5f));
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// Grid setup
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Handles.color = new Color(1f, 1f, 1f, 0.05f);
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int hLines = (int)Mathf.Sqrt(innerRect.width);
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int vLines = (int)(hLines / (innerRect.width / innerRect.height));
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// Vertical grid
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int gridOffset = Mathf.FloorToInt(innerRect.width / hLines);
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int gridPadding = ((int)(innerRect.width) % hLines) / 2;
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for (int i = 1; i < hLines; i++)
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{
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var offset = i * Vector2.right * gridOffset;
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offset.x += gridPadding;
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Handles.DrawLine(innerRect.position + offset, new Vector2(innerRect.x, innerRect.yMax - 1) + offset);
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}
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// Horizontal grid
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gridOffset = Mathf.FloorToInt(innerRect.height / vLines);
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gridPadding = ((int)(innerRect.height) % vLines) / 2;
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for (int i = 1; i < vLines; i++)
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{
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var offset = i * Vector2.up * gridOffset;
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offset.y += gridPadding;
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Handles.DrawLine(innerRect.position + offset, new Vector2(innerRect.xMax - 1, innerRect.y) + offset);
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}
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}
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// Curve editor
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if (m_CurveEditor.OnGUI(rect))
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{
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Repaint();
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GUI.changed = true;
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}
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if (Event.current.type == EventType.Repaint)
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{
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// Borders
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Handles.color = Color.black;
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Handles.DrawLine(new Vector2(rect.x, rect.y - 18f), new Vector2(rect.xMax, rect.y - 18f));
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Handles.DrawLine(new Vector2(rect.x, rect.y - 19f), new Vector2(rect.x, rect.yMax));
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Handles.DrawLine(new Vector2(rect.x, rect.yMax), new Vector2(rect.xMax, rect.yMax));
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Handles.DrawLine(new Vector2(rect.xMax, rect.yMax), new Vector2(rect.xMax, rect.y - 18f));
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// Selection info
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var selection = m_CurveEditor.GetSelection();
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if (selection.curve != null && selection.keyframeIndex > -1)
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{
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var key = selection.keyframe.Value;
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var infoRect = innerRect;
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infoRect.x += 5f;
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infoRect.width = 100f;
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infoRect.height = 30f;
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GUI.Label(infoRect, string.Format("{0}\n{1}", key.time.ToString("F3"), key.value.ToString("F3")), FxStyles.preLabel);
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}
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}
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}
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/*
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EditorGUILayout.HelpBox(
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@"Curve editor cheat sheet:
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- [Del] or [Backspace] to remove a key
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- [Ctrl] to break a tangent handle
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- [Shift] to align tangent handles
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- [Double click] to create a key on the curve(s) at mouse position
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- [Alt] + [Double click] to create a key on the curve(s) at a given time",
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MessageType.Info);
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*/
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EditorGUILayout.Space();
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EditorGUI.indentLevel += 2;
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}
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void DrawBackgroundTexture(Rect rect, int pass)
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{
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float scale = EditorGUIUtility.pixelsPerPoint;
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var oldRt = RenderTexture.active;
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var rt = RenderTexture.GetTemporary(Mathf.CeilToInt(rect.width * scale), Mathf.CeilToInt(rect.height * scale), 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);
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s_MaterialSpline.SetFloat("_DisabledState", GUI.enabled ? 1f : 0.5f);
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s_MaterialSpline.SetFloat("_PixelScaling", EditorGUIUtility.pixelsPerPoint);
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Graphics.Blit(null, rt, s_MaterialSpline, pass);
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RenderTexture.active = oldRt;
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GUI.DrawTexture(rect, rt);
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RenderTexture.ReleaseTemporary(rt);
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}
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}
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}
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