494 lines
20 KiB
C#
494 lines
20 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using UnityEditor.Graphing;
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using UnityEditor.Graphing.Util;
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using UnityEngine;
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using UnityEditor.UIElements;
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using UnityEditor.Experimental.GraphView;
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using UnityEngine.UIElements;
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using UnityEditor.Searcher;
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using UnityEngine.Profiling;
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using UnityEngine.Pool;
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namespace UnityEditor.ShaderGraph.Drawing
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{
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internal struct NodeEntry
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{
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public string[] title;
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public AbstractMaterialNode node;
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public int compatibleSlotId;
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public string slotName;
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}
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class SearchWindowProvider : IDisposable
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{
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internal EditorWindow m_EditorWindow;
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internal GraphData m_Graph;
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internal GraphView m_GraphView;
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internal Texture2D m_Icon;
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public List<NodeEntry> currentNodeEntries;
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public ShaderPort connectedPort { get; set; }
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public bool nodeNeedsRepositioning { get; set; }
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public SlotReference targetSlotReference { get; internal set; }
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public Vector2 targetPosition { get; internal set; }
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public VisualElement target { get; internal set; }
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public bool regenerateEntries { get; set; }
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private const string k_HiddenFolderName = "Hidden";
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ShaderStageCapability m_ConnectedSlotCapability; // calculated in GenerateNodeEntries
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public void Initialize(EditorWindow editorWindow, GraphData graph, GraphView graphView)
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{
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m_EditorWindow = editorWindow;
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m_Graph = graph;
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m_GraphView = graphView;
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GenerateNodeEntries();
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// Transparent icon to trick search window into indenting items
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m_Icon = new Texture2D(1, 1);
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m_Icon.SetPixel(0, 0, new Color(0, 0, 0, 0));
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m_Icon.Apply();
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}
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public void Dispose()
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{
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if (m_Icon != null)
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{
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UnityEngine.Object.DestroyImmediate(m_Icon);
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m_Icon = null;
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}
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m_EditorWindow = null;
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m_Graph = null;
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m_GraphView = null;
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connectedPort = null;
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currentNodeEntries?.Clear();
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currentNodeEntries = null;
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}
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List<int> m_Ids;
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List<MaterialSlot> m_Slots = new List<MaterialSlot>();
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public void GenerateNodeEntries()
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{
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Profiler.BeginSample("SearchWindowProvider.GenerateNodeEntries");
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// First build up temporary data structure containing group & title as an array of strings (the last one is the actual title) and associated node type.
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List<NodeEntry> nodeEntries = new List<NodeEntry>();
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bool hideCustomInterpolators = m_Graph.activeTargets.All(at => at.ignoreCustomInterpolators);
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if (connectedPort != null)
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{
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var slot = connectedPort.slot;
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// Precalculate slot compatibility to avoid traversing graph for every added entry.
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m_ConnectedSlotCapability = slot.stageCapability;
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if (m_ConnectedSlotCapability == ShaderStageCapability.All || slot.owner is SubGraphNode)
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{
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m_ConnectedSlotCapability = NodeUtils.GetEffectiveShaderStageCapability(slot, true)
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& NodeUtils.GetEffectiveShaderStageCapability(slot, false);
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}
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}
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else
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{
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m_ConnectedSlotCapability = ShaderStageCapability.All;
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}
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if (target is ContextView contextView)
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{
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// Iterate all BlockFieldDescriptors currently cached on GraphData
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foreach (var field in m_Graph.blockFieldDescriptors)
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{
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if (field.isHidden)
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continue;
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// Test stage
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if (field.shaderStage != contextView.contextData.shaderStage)
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continue;
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// Create title
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List<string> title = ListPool<string>.Get();
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if (!string.IsNullOrEmpty(field.path))
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{
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var path = field.path.Split('/').ToList();
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title.AddRange(path);
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}
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title.Add(field.displayName);
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// Create and initialize BlockNode instance then add entry
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var node = (BlockNode)Activator.CreateInstance(typeof(BlockNode));
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node.Init(field);
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AddEntries(node, title.ToArray(), nodeEntries);
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}
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SortEntries(nodeEntries);
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if (contextView.contextData.shaderStage == ShaderStage.Vertex && !hideCustomInterpolators)
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{
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var customBlockNodeStub = (BlockNode)Activator.CreateInstance(typeof(BlockNode));
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customBlockNodeStub.InitCustomDefault();
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AddEntries(customBlockNodeStub, new string[] { "Custom Interpolator" }, nodeEntries);
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}
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currentNodeEntries = nodeEntries;
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return;
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}
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Profiler.BeginSample("SearchWindowProvider.GenerateNodeEntries.IterateKnowNodes");
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foreach (var type in NodeClassCache.knownNodeTypes)
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{
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if ((!type.IsClass || type.IsAbstract)
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|| type == typeof(PropertyNode)
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|| type == typeof(KeywordNode)
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|| type == typeof(DropdownNode)
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|| type == typeof(SubGraphNode))
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continue;
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TitleAttribute titleAttribute = NodeClassCache.GetAttributeOnNodeType<TitleAttribute>(type);
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if (titleAttribute != null)
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{
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var node = (AbstractMaterialNode)Activator.CreateInstance(type);
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if (!node.ExposeToSearcher)
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continue;
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if (ShaderGraphPreferences.allowDeprecatedBehaviors && node.latestVersion > 0)
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{
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var versions = node.allowedNodeVersions ?? Enumerable.Range(0, node.latestVersion + 1);
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bool multiple = (versions.Count() > 1);
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foreach (int i in versions)
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{
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var depNode = (AbstractMaterialNode)Activator.CreateInstance(type);
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depNode.ChangeVersion(i);
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if (multiple)
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AddEntries(depNode, titleAttribute.title.Append($"v{i}").ToArray(), nodeEntries);
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else
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AddEntries(depNode, titleAttribute.title, nodeEntries);
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}
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}
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else
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{
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AddEntries(node, titleAttribute.title, nodeEntries);
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}
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}
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}
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Profiler.EndSample();
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Profiler.BeginSample("SearchWindowProvider.GenerateNodeEntries.IterateSubgraphAssets");
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foreach (var asset in NodeClassCache.knownSubGraphAssets)
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{
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if (asset == null)
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continue;
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var node = new SubGraphNode { asset = asset };
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var title = asset.path.Split('/').ToList();
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if (asset.descendents.Contains(m_Graph.assetGuid) || asset.assetGuid == m_Graph.assetGuid)
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{
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continue;
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}
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if (string.IsNullOrEmpty(asset.path))
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{
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AddEntries(node, new string[1] { asset.name }, nodeEntries);
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}
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else if (title[0] != k_HiddenFolderName)
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{
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title.Add(asset.name);
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AddEntries(node, title.ToArray(), nodeEntries);
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}
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}
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Profiler.EndSample();
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Profiler.BeginSample("SearchWindowProvider.GenerateNodeEntries.IterateGraphInputs");
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foreach (var property in m_Graph.properties)
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{
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if (property is Serialization.MultiJsonInternal.UnknownShaderPropertyType)
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continue;
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var node = new PropertyNode();
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node.property = property;
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AddEntries(node, new[] { "Properties", "Property: " + property.displayName }, nodeEntries);
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}
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foreach (var keyword in m_Graph.keywords)
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{
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var node = new KeywordNode();
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node.keyword = keyword;
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AddEntries(node, new[] { "Keywords", "Keyword: " + keyword.displayName }, nodeEntries);
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}
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foreach (var dropdown in m_Graph.dropdowns)
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{
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var node = new DropdownNode();
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node.dropdown = dropdown;
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AddEntries(node, new[] { "Dropdowns", "dropdown: " + dropdown.displayName }, nodeEntries);
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}
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if (!hideCustomInterpolators)
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{
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foreach (var cibnode in m_Graph.vertexContext.blocks.Where(b => b.value.isCustomBlock))
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{
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var node = Activator.CreateInstance<CustomInterpolatorNode>();
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node.ConnectToCustomBlock(cibnode.value);
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AddEntries(node, new[] { "Custom Interpolator", cibnode.value.customName }, nodeEntries);
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}
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}
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Profiler.EndSample();
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SortEntries(nodeEntries);
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currentNodeEntries = nodeEntries;
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Profiler.EndSample();
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}
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void SortEntries(List<NodeEntry> nodeEntries)
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{
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// Sort the entries lexicographically by group then title with the requirement that items always comes before sub-groups in the same group.
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// Example result:
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// - Art/BlendMode
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// - Art/Adjustments/ColorBalance
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// - Art/Adjustments/Contrast
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nodeEntries.Sort((entry1, entry2) =>
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{
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for (var i = 0; i < entry1.title.Length; i++)
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{
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if (i >= entry2.title.Length)
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return 1;
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var value = entry1.title[i].CompareTo(entry2.title[i]);
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if (value != 0)
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{
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// Make sure that leaves go before nodes
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if (entry1.title.Length != entry2.title.Length && (i == entry1.title.Length - 1 || i == entry2.title.Length - 1))
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{
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//once nodes are sorted, sort slot entries by slot order instead of alphebetically
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var alphaOrder = entry1.title.Length < entry2.title.Length ? -1 : 1;
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var slotOrder = entry1.compatibleSlotId.CompareTo(entry2.compatibleSlotId);
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return alphaOrder.CompareTo(slotOrder);
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}
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return value;
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}
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}
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return 0;
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});
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}
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void AddEntries(AbstractMaterialNode node, string[] title, List<NodeEntry> addNodeEntries)
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{
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if (m_Graph.isSubGraph && !node.allowedInSubGraph)
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return;
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if (!m_Graph.isSubGraph && !node.allowedInMainGraph)
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return;
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if (connectedPort == null)
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{
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addNodeEntries.Add(new NodeEntry
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{
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node = node,
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title = title,
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compatibleSlotId = -1
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});
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return;
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}
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var connectedSlot = connectedPort.slot;
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m_Slots.Clear();
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node.GetSlots(m_Slots);
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foreach (var slot in m_Slots)
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{
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if (!slot.IsCompatibleWith(connectedSlot))
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{
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continue;
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}
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if (!slot.IsCompatibleStageWith(m_ConnectedSlotCapability))
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{
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continue;
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}
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//var entryTitle = new string[title.Length];
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//title.CopyTo(entryTitle, 0);
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//entryTitle[entryTitle.Length - 1] += ": " + slot.displayName;
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addNodeEntries.Add(new NodeEntry
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{
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title = title,
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node = node,
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compatibleSlotId = slot.id,
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slotName = slot.displayName
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});
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}
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}
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}
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class SearcherProvider : SearchWindowProvider
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{
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public Searcher.Searcher LoadSearchWindow()
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{
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if (regenerateEntries)
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{
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GenerateNodeEntries();
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regenerateEntries = false;
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}
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//create empty root for searcher tree
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var root = new List<SearcherItem>();
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var dummyEntry = new NodeEntry();
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foreach (var nodeEntry in currentNodeEntries)
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{
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SearcherItem item = null;
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SearcherItem parent = null;
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for (int i = 0; i < nodeEntry.title.Length; i++)
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{
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var pathEntry = nodeEntry.title[i];
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List<SearcherItem> children = parent != null ? parent.Children : root;
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item = children.Find(x => x.Name == pathEntry);
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if (item == null)
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{
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//if we have slot entries and are at a leaf, add the slot name to the entry title
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if (nodeEntry.compatibleSlotId != -1 && i == nodeEntry.title.Length - 1)
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item = new SearchNodeItem(pathEntry + ": " + nodeEntry.slotName, nodeEntry, nodeEntry.node.synonyms);
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//if we don't have slot entries and are at a leaf, add userdata to the entry
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else if (nodeEntry.compatibleSlotId == -1 && i == nodeEntry.title.Length - 1)
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item = new SearchNodeItem(pathEntry, nodeEntry, nodeEntry.node.synonyms);
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//if we aren't a leaf, don't add user data
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else
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item = new SearchNodeItem(pathEntry, dummyEntry, null);
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if (parent != null)
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{
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parent.AddChild(item);
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}
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else
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{
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children.Add(item);
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}
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}
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parent = item;
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if (parent.Depth == 0 && !root.Contains(parent))
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root.Add(parent);
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}
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}
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var nodeDatabase = SearcherDatabase.Create(root, string.Empty, false);
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return new Searcher.Searcher(nodeDatabase, new SearchWindowAdapter("Create Node"));
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}
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public bool OnSearcherSelectEntry(SearcherItem entry, Vector2 screenMousePosition)
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{
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if (entry == null || (entry as SearchNodeItem).NodeGUID.node == null)
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return true;
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var nodeEntry = (entry as SearchNodeItem).NodeGUID;
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if (nodeEntry.node is PropertyNode propNode)
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if (propNode.property is Serialization.MultiJsonInternal.UnknownShaderPropertyType)
|
||
|
|
return true;
|
||
|
|
|
||
|
|
var node = CopyNodeForGraph(nodeEntry.node);
|
||
|
|
|
||
|
|
var windowRoot = m_EditorWindow.rootVisualElement;
|
||
|
|
var windowMousePosition = windowRoot.ChangeCoordinatesTo(windowRoot.parent, screenMousePosition); //- m_EditorWindow.position.position);
|
||
|
|
var graphMousePosition = m_GraphView.contentViewContainer.WorldToLocal(windowMousePosition);
|
||
|
|
|
||
|
|
m_Graph.owner.RegisterCompleteObjectUndo("Add " + node.name);
|
||
|
|
|
||
|
|
if (node is BlockNode blockNode)
|
||
|
|
{
|
||
|
|
if (!(target is ContextView contextView))
|
||
|
|
return true;
|
||
|
|
|
||
|
|
// ensure custom blocks have a unique name provided the existing context.
|
||
|
|
if (blockNode.isCustomBlock)
|
||
|
|
{
|
||
|
|
HashSet<string> usedNames = new HashSet<string>();
|
||
|
|
foreach (var other in contextView.contextData.blocks) usedNames.Add(other.value.descriptor.displayName);
|
||
|
|
blockNode.customName = GraphUtil.SanitizeName(usedNames, "{0}_{1}", blockNode.descriptor.displayName);
|
||
|
|
}
|
||
|
|
// Test against all current BlockNodes in the Context
|
||
|
|
// Never allow duplicate BlockNodes
|
||
|
|
else if (contextView.contextData.blocks.Where(x => x.value.name == blockNode.name).FirstOrDefault().value != null)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Insert block to Data
|
||
|
|
blockNode.owner = m_Graph;
|
||
|
|
int index = contextView.GetInsertionIndex(screenMousePosition);
|
||
|
|
m_Graph.AddBlock(blockNode, contextView.contextData, index);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
var drawState = node.drawState;
|
||
|
|
drawState.position = new Rect(graphMousePosition, Vector2.zero);
|
||
|
|
node.drawState = drawState;
|
||
|
|
m_Graph.AddNode(node);
|
||
|
|
|
||
|
|
if (connectedPort != null)
|
||
|
|
{
|
||
|
|
var connectedSlot = connectedPort.slot;
|
||
|
|
var connectedSlotReference = connectedSlot.owner.GetSlotReference(connectedSlot.id);
|
||
|
|
var compatibleSlotReference = node.GetSlotReference(nodeEntry.compatibleSlotId);
|
||
|
|
|
||
|
|
var fromReference = connectedSlot.isOutputSlot ? connectedSlotReference : compatibleSlotReference;
|
||
|
|
var toReference = connectedSlot.isOutputSlot ? compatibleSlotReference : connectedSlotReference;
|
||
|
|
m_Graph.Connect(fromReference, toReference);
|
||
|
|
|
||
|
|
nodeNeedsRepositioning = true;
|
||
|
|
targetSlotReference = compatibleSlotReference;
|
||
|
|
targetPosition = graphMousePosition;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
public AbstractMaterialNode CopyNodeForGraph(AbstractMaterialNode oldNode)
|
||
|
|
{
|
||
|
|
var newNode = (AbstractMaterialNode)Activator.CreateInstance(oldNode.GetType());
|
||
|
|
if (ShaderGraphPreferences.allowDeprecatedBehaviors && oldNode.sgVersion != newNode.sgVersion)
|
||
|
|
{
|
||
|
|
newNode.ChangeVersion(oldNode.sgVersion);
|
||
|
|
}
|
||
|
|
if (newNode is SubGraphNode subgraphNode)
|
||
|
|
{
|
||
|
|
subgraphNode.asset = ((SubGraphNode)oldNode).asset;
|
||
|
|
}
|
||
|
|
else if (newNode is PropertyNode propertyNode)
|
||
|
|
{
|
||
|
|
propertyNode.owner = m_Graph;
|
||
|
|
propertyNode.property = ((PropertyNode)oldNode).property;
|
||
|
|
propertyNode.owner = null;
|
||
|
|
}
|
||
|
|
else if (newNode is KeywordNode keywordNode)
|
||
|
|
{
|
||
|
|
keywordNode.owner = m_Graph;
|
||
|
|
keywordNode.keyword = ((KeywordNode)oldNode).keyword;
|
||
|
|
keywordNode.owner = null;
|
||
|
|
}
|
||
|
|
else if (newNode is DropdownNode dropdownNode)
|
||
|
|
{
|
||
|
|
dropdownNode.owner = m_Graph;
|
||
|
|
dropdownNode.dropdown = ((DropdownNode)oldNode).dropdown;
|
||
|
|
dropdownNode.owner = null;
|
||
|
|
}
|
||
|
|
else if (newNode is BlockNode blockNode)
|
||
|
|
{
|
||
|
|
blockNode.owner = m_Graph;
|
||
|
|
blockNode.Init(((BlockNode)oldNode).descriptor);
|
||
|
|
blockNode.owner = null;
|
||
|
|
}
|
||
|
|
else if (newNode is CustomInterpolatorNode cinode)
|
||
|
|
{
|
||
|
|
cinode.owner = m_Graph;
|
||
|
|
cinode.ConnectToCustomBlockByName(((CustomInterpolatorNode)oldNode).customBlockNodeName);
|
||
|
|
cinode.owner = null;
|
||
|
|
}
|
||
|
|
return newNode;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|