365 lines
14 KiB
C#
365 lines
14 KiB
C#
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using System;
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using System.Collections.Generic;
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using Unity.Collections;
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using Unity.Jobs;
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using Unity.Mathematics;
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using UnityEditor.U2D.Common;
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using UnityEditor.U2D.Layout;
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using UnityEngine;
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namespace UnityEditor.U2D.Animation
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{
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internal class GenerateGeometryTool : MeshToolWrapper
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{
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private const float kWeightTolerance = 0.1f;
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private SpriteMeshDataController m_SpriteMeshDataController = new SpriteMeshDataController();
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private ITriangulator m_Triangulator;
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private IOutlineGenerator m_OutlineGenerator;
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private IWeightsGenerator m_WeightGenerator;
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private GenerateGeometryPanel m_GenerateGeometryPanel;
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internal override void OnCreate()
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{
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m_Triangulator = new Triangulator();
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m_OutlineGenerator = new OutlineGenerator();
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m_WeightGenerator = new BoundedBiharmonicWeightsGenerator();
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}
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public override void Initialize(LayoutOverlay layout)
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{
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base.Initialize(layout);
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m_GenerateGeometryPanel = GenerateGeometryPanel.GenerateFromUXML();
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m_GenerateGeometryPanel.skinningCache = skinningCache;
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layout.rightOverlay.Add(m_GenerateGeometryPanel);
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BindElements();
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Hide();
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}
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private void BindElements()
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{
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Debug.Assert(m_GenerateGeometryPanel != null);
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m_GenerateGeometryPanel.onAutoGenerateGeometry += (float detail, byte alpha, float subdivide) =>
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{
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var selectedSprite = skinningCache.selectedSprite;
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if (selectedSprite != null)
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GenerateGeometryForSprites(new[] { selectedSprite }, detail, alpha, subdivide);
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};
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m_GenerateGeometryPanel.onAutoGenerateGeometryAll += (float detail, byte alpha, float subdivide) =>
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{
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var sprites = skinningCache.GetSprites();
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GenerateGeometryForSprites(sprites, detail, alpha, subdivide);
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};
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}
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void GenerateGeometryForSprites(SpriteCache[] sprites, float detail, byte alpha, float subdivide)
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{
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var cancelProgress = false;
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using (skinningCache.UndoScope(TextContent.generateGeometry))
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{
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float progressMax = sprites.Length * 4; // for ProgressBar
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int validSpriteCount = 0;
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//
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// Generate Outline
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//
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for (var i = 0; i < sprites.Length; ++i)
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{
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var sprite = sprites[i];
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if (!sprite.IsVisible())
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continue;
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Debug.Assert(sprite != null);
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var mesh = sprite.GetMesh();
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Debug.Assert(mesh != null);
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m_SpriteMeshDataController.spriteMeshData = mesh;
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validSpriteCount++;
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cancelProgress = EditorUtility.DisplayCancelableProgressBar(TextContent.generatingOutline, sprite.name, i / progressMax);
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if (cancelProgress)
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break;
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m_SpriteMeshDataController.OutlineFromAlpha(m_OutlineGenerator, mesh.textureDataProvider, detail / 100f, alpha);
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}
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//
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// Generate Base Mesh Threaded.
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//
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const int maxDataCount = 65536;
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var spriteList = new List<SpriteJobData>();
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var jobHandles = new NativeArray<JobHandle>(validSpriteCount, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
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int jobCount = 0;
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for (var i = 0; i < sprites.Length; ++i)
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{
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var sprite = sprites[i];
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if (!sprite.IsVisible())
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continue;
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cancelProgress = EditorUtility.DisplayCancelableProgressBar(TextContent.triangulatingGeometry, sprite.name, 0.25f + (i / progressMax));
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if (cancelProgress)
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break;
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var mesh = sprite.GetMesh();
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m_SpriteMeshDataController.spriteMeshData = mesh;
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SpriteJobData sd = new SpriteJobData();
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sd.spriteMesh = mesh;
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sd.vertices = new NativeArray<float2>(maxDataCount, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
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sd.edges = new NativeArray<int2>(maxDataCount, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
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sd.indices = new NativeArray<int>(maxDataCount, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
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sd.weights = new NativeArray<BoneWeight>(maxDataCount, Allocator.Persistent);
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sd.result = new NativeArray<int4>(1, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
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sd.result[0] = int4.zero;
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spriteList.Add(sd);
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if (m_GenerateGeometryPanel.generateWeights)
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{
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jobHandles[jobCount] = m_SpriteMeshDataController.TriangulateJob(m_Triangulator, sd);
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}
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else
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{
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jobHandles[jobCount] = default(JobHandle);
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m_SpriteMeshDataController.Triangulate(m_Triangulator);
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}
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jobCount++;
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}
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JobHandle.CombineDependencies(jobHandles).Complete();
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//
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// Generate Base Mesh Fallback.
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//
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for (var i = 0; i < spriteList.Count; i++)
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{
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var sd = spriteList[i];
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if (math.all(sd.result[0].xy))
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{
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sd.spriteMesh.Clear();
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var edges = new int2[sd.result[0].z];
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var indices = new int[sd.result[0].y];
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for (var j = 0; j < sd.result[0].x; ++j)
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sd.spriteMesh.AddVertex(sd.vertices[j], default(BoneWeight));
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for (var j = 0; j < sd.result[0].y; ++j)
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indices[j] = sd.indices[j];
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for (var j = 0; j < sd.result[0].z; ++j)
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edges[j] = sd.edges[j];
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sd.spriteMesh.SetEdges(edges);
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sd.spriteMesh.SetIndices(indices);
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}
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else
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{
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m_SpriteMeshDataController.spriteMeshData = sd.spriteMesh;
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m_SpriteMeshDataController.Triangulate(m_Triangulator);
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}
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}
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//
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// Subdivide.
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//
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jobCount = 0;
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if (subdivide > 0f)
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{
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var largestAreaFactor = subdivide != 0 ? Mathf.Lerp(0.5f, 0.05f, Math.Min(subdivide, 100f) / 100f) : subdivide;
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for (var i = 0; i < sprites.Length; ++i)
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{
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var sprite = sprites[i];
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if (!sprite.IsVisible())
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continue;
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cancelProgress = EditorUtility.DisplayCancelableProgressBar(TextContent.subdividingGeometry, sprite.name, 0.5f + (i / progressMax));
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if (cancelProgress)
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break;
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var mesh = sprite.GetMesh();
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m_SpriteMeshDataController.spriteMeshData = mesh;
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var sd = spriteList[i];
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sd.spriteMesh = mesh;
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sd.result[0] = int4.zero;
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m_SpriteMeshDataController.Subdivide(m_Triangulator, sd, largestAreaFactor, 0f);
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}
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}
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//
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// Weight.
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//
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jobCount = 0;
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if (m_GenerateGeometryPanel.generateWeights)
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{
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for (var i = 0; i < sprites.Length; i++)
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{
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var sprite = sprites[i];
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if (!sprite.IsVisible())
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continue;
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var mesh = sprite.GetMesh();
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m_SpriteMeshDataController.spriteMeshData = mesh;
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cancelProgress = EditorUtility.DisplayCancelableProgressBar(TextContent.generatingWeights, sprite.name, 0.75f + (i / progressMax));
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if (cancelProgress)
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break;
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var sd = spriteList[i];
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jobHandles[jobCount] = GenerateWeights(sprite, sd);
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jobCount++;
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}
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// Weight
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JobHandle.CombineDependencies(jobHandles).Complete();
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for (var i = 0; i < sprites.Length; i++)
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{
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var sprite = sprites[i];
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if (!sprite.IsVisible())
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continue;
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var mesh = sprite.GetMesh();
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m_SpriteMeshDataController.spriteMeshData = mesh;
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var sd = spriteList[i];
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for (var j = 0; j < mesh.vertexCount; ++j)
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{
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var editableBoneWeight = EditableBoneWeightUtility.CreateFromBoneWeight(sd.weights[j]);
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if (kWeightTolerance > 0f)
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{
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editableBoneWeight.FilterChannels(kWeightTolerance);
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editableBoneWeight.Normalize();
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}
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mesh.vertexWeights[j] = editableBoneWeight;
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}
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if (null != sprite.GetCharacterPart())
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sprite.DeassociateUnusedBones();
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m_SpriteMeshDataController.SortTrianglesByDepth();
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}
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}
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for (var i = 0; i < spriteList.Count; i++)
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{
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var sd = spriteList[i];
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sd.result.Dispose();
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sd.indices.Dispose();
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sd.edges.Dispose();
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sd.vertices.Dispose();
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sd.weights.Dispose();
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}
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if (!cancelProgress)
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{
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skinningCache.vertexSelection.Clear();
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foreach(var sprite in sprites)
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skinningCache.events.meshChanged.Invoke(sprite.GetMesh());
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}
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EditorUtility.ClearProgressBar();
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}
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if(cancelProgress)
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Undo.PerformUndo();
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}
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protected override void OnActivate()
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{
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base.OnActivate();
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UpdateButton();
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Show();
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skinningCache.events.selectedSpriteChanged.AddListener(OnSelectedSpriteChanged);
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}
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protected override void OnDeactivate()
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{
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base.OnDeactivate();
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Hide();
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skinningCache.events.selectedSpriteChanged.RemoveListener(OnSelectedSpriteChanged);
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}
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private void Show()
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{
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m_GenerateGeometryPanel.SetHiddenFromLayout(false);
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}
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private void Hide()
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{
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m_GenerateGeometryPanel.SetHiddenFromLayout(true);
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}
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private void UpdateButton()
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{
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var selectedSprite = skinningCache.selectedSprite;
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if (selectedSprite == null)
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m_GenerateGeometryPanel.SetMode(GenerateGeometryPanel.GenerateMode.Multiple);
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else
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m_GenerateGeometryPanel.SetMode(GenerateGeometryPanel.GenerateMode.Single);
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}
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private void OnSelectedSpriteChanged(SpriteCache sprite)
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{
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UpdateButton();
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}
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private JobHandle GenerateWeights(SpriteCache sprite, SpriteJobData sd)
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{
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Debug.Assert(sprite != null);
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var mesh = sprite.GetMesh();
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Debug.Assert(mesh != null);
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using (new DefaultPoseScope(skinningCache.GetEffectiveSkeleton(sprite)))
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{
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sprite.AssociatePossibleBones();
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return GenerateWeights(mesh, sd);
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}
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}
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// todo: Remove. This function seems dubious. Only associate if boneCount is 0 or if boneCount 1 and first bone matches ?
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private bool NeedsAssociateBones(CharacterPartCache characterPart)
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{
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if (characterPart == null)
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return false;
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var skeleton = characterPart.skinningCache.character.skeleton;
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return characterPart.boneCount == 0 ||
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(characterPart.boneCount == 1 && characterPart.GetBone(0) == skeleton.GetBone(0));
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}
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private JobHandle GenerateWeights(MeshCache mesh, SpriteJobData sd)
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{
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Debug.Assert(mesh != null);
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m_SpriteMeshDataController.spriteMeshData = mesh;
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var JobHandle = m_SpriteMeshDataController.CalculateWeightsJob(m_WeightGenerator, null, kWeightTolerance, sd);
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return JobHandle;
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}
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protected override void OnGUI()
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{
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m_MeshPreviewBehaviour.showWeightMap = m_GenerateGeometryPanel.generateWeights;
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m_MeshPreviewBehaviour.overlaySelected = m_GenerateGeometryPanel.generateWeights;
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skeletonTool.skeletonStyle = SkeletonStyles.Default;
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if (m_GenerateGeometryPanel.generateWeights)
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skeletonTool.skeletonStyle = SkeletonStyles.WeightMap;
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DoSkeletonGUI();
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}
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}
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}
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