protected override void DoWindow(int windowId)
{
float labelWidth = EditorGUIUtility.labelWidth;
bool wideMode = EditorGUIUtility.wideMode;
EditorGUIUtility.wideMode = true;
EditorGUILayout.BeginHorizontal();
string[] names = spriteMeshCache.GetBoneNames("None");
int index = spriteMeshCache.bindPoses.IndexOf(spriteMeshCache.selectedBindPose);
index = EditorGUILayout.Popup(index + 1, names, GUILayout.Width(75f)) - 1;
if (index >= 0 && index < spriteMeshCache.bindPoses.Count)
{
spriteMeshCache.selectedBindPose = spriteMeshCache.bindPoses[index];
}
else
{
spriteMeshCache.selectedBindPose = null;
}
EditorGUI.BeginChangeCheck();
EditorGUI.BeginDisabledGroup(spriteMeshCache.selectedBindPose == null);
if (Event.current.type == EventType.MouseUp ||
Event.current.type == EventType.MouseDown)
{
m_Weight = 0f;
m_TempWeights.Clear();
if (spriteMeshCache.selection.Count == 0)
{
m_TempWeights = spriteMeshCache.boneWeights.ToList();
}
else
{
m_TempWeights = spriteMeshCache.selectedNodes.ConvertAll(n => spriteMeshCache.GetBoneWeight(n));
}
}
EditorGUIUtility.fieldWidth = 35f;
m_Weight = EditorGUILayout.Slider(m_Weight, -1f, 1f);
EditorGUIUtility.fieldWidth = 0f;
if (EditorGUI.EndChangeCheck())
{
spriteMeshCache.RegisterUndo("modify weights");
List <Node> nodes = null;
if (spriteMeshCache.selection.Count == 0)
{
nodes = spriteMeshCache.nodes;
}
else
{
nodes = spriteMeshCache.selectedNodes;
}
for (int i = 0; i < nodes.Count; i++)
{
Node node = nodes[i];
BoneWeight tempWeight = m_TempWeights[i];
tempWeight.SetBoneIndexWeight(index, tempWeight.GetBoneWeight(index) + m_Weight, !EditorGUI.actionKey, true);
spriteMeshCache.SetBoneWeight(node, tempWeight);
}
}
EditorGUI.EndDisabledGroup();
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
if (GUILayout.Button(new GUIContent("Smooth", "Smooth weights")))
{
spriteMeshCache.RegisterUndo("smooth weights");
List <Node> targetNodes = spriteMeshCache.nodes;
if (spriteMeshCache.selection.Count > 0)
{
targetNodes = spriteMeshCache.selectedNodes;
}
spriteMeshCache.SmoothWeights(targetNodes);
}
if (GUILayout.Button(new GUIContent("Auto", "Calculate automatic weights")))
{
spriteMeshCache.RegisterUndo("calculate weights");
List <Node> targetNodes = spriteMeshCache.nodes;
if (spriteMeshCache.selection.Count > 0)
{
targetNodes = spriteMeshCache.selectedNodes;
}
spriteMeshCache.CalculateAutomaticWeights(targetNodes);
}
GUILayout.FlexibleSpace();
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
EditorGUIUtility.labelWidth = 50f;
overlayColors = EditorGUILayout.Toggle("Overlay", overlayColors);
EditorGUIUtility.labelWidth = 30f;
showPie = EditorGUILayout.Toggle("Pies", showPie);
GUILayout.FlexibleSpace();
EditorGUILayout.EndHorizontal();
EditorGUIUtility.labelWidth = labelWidth;
EditorGUIUtility.wideMode = wideMode;
}
public void CalculateAutomaticWeights(List <Node> targetNodes)
{
float pixelsPerUnit = SpriteMeshUtils.GetSpritePixelsPerUnit(spriteMesh.sprite);
if (nodes.Count <= 0)
{
Debug.Log("Cannot calculate automatic weights from a SpriteMesh with no vertices.");
return;
}
if (bindPoses.Count <= 0)
{
Debug.Log("Cannot calculate automatic weights. Specify bones to the SpriteMeshInstance.");
return;
}
if (spriteMesh && bindPoses.Count > 1)
{
List <Vector2> controlPoints = new List <Vector2>(bindPoses.Count * 2);
List <IndexedEdge> controlPointEdges = new List <IndexedEdge>(bindPoses.Count);
foreach (BindInfo bindInfo in bindPoses)
{
Vector2 tip = SpriteMeshUtils.VertexToTexCoord(spriteMesh, pivotPoint, bindInfo.position, pixelsPerUnit);
Vector2 tail = SpriteMeshUtils.VertexToTexCoord(spriteMesh, pivotPoint, bindInfo.endPoint, pixelsPerUnit);
int index1 = -1;
if (!ContainsVector(tip, controlPoints, 0.01f, out index1))
{
index1 = controlPoints.Count;
controlPoints.Add(tip);
}
int index2 = -1;
if (!ContainsVector(tail, controlPoints, 0.01f, out index2))
{
index2 = controlPoints.Count;
controlPoints.Add(tail);
}
IndexedEdge edge = new IndexedEdge(index1, index2);
controlPointEdges.Add(edge);
}
float[,] weightArray;
BbwPlugin.CalculateBbw(m_TexVertices.ToArray(),
indexedEdges.ToArray(),
controlPoints.ToArray(),
controlPointEdges.ToArray(),
out weightArray);
FillBoneWeights(targetNodes, weightArray);
isDirty = true;
}
else
{
BoneWeight boneWeight = BoneWeight.Create();
boneWeight.boneIndex0 = 0;
boneWeight.weight0 = 1f;
foreach (Node node in targetNodes)
{
SetBoneWeight(node, boneWeight);
}
}
}
void DoVerticesInspector()
{
if (spriteMeshCache.selection.Count > 0)
{
string[] names = spriteMeshCache.GetBoneNames("Unassigned");
BoneWeight boneWeight = BoneWeight.Create();
EditorGUI.BeginChangeCheck();
bool mixedBoneIndex0 = false;
bool mixedBoneIndex1 = false;
bool mixedBoneIndex2 = false;
bool mixedBoneIndex3 = false;
bool changedIndex0 = false;
bool changedIndex1 = false;
bool changedIndex2 = false;
bool changedIndex3 = false;
bool mixedWeight = false;
if (spriteMeshCache.multiselection)
{
mixedWeight = true;
int boneIndex = -1;
mixedBoneIndex0 = IsMixedBoneIndex(0, out boneIndex);
if (!mixedBoneIndex0)
{
boneWeight.boneIndex0 = boneIndex;
}
mixedBoneIndex1 = IsMixedBoneIndex(1, out boneIndex);
if (!mixedBoneIndex1)
{
boneWeight.boneIndex1 = boneIndex;
}
mixedBoneIndex2 = IsMixedBoneIndex(2, out boneIndex);
if (!mixedBoneIndex2)
{
boneWeight.boneIndex2 = boneIndex;
}
mixedBoneIndex3 = IsMixedBoneIndex(3, out boneIndex);
if (!mixedBoneIndex3)
{
boneWeight.boneIndex3 = boneIndex;
}
}
else
{
boneWeight = spriteMeshCache.GetBoneWeight(spriteMeshCache.selectedNode);
}
EditorGUI.BeginChangeCheck();
EditorGUI.BeginChangeCheck();
boneWeight = EditorGUIExtra.Weight(boneWeight, 0, names, mixedBoneIndex0, mixedWeight);
changedIndex0 = EditorGUI.EndChangeCheck();
EditorGUI.BeginChangeCheck();
boneWeight = EditorGUIExtra.Weight(boneWeight, 1, names, mixedBoneIndex1, mixedWeight);
changedIndex1 = EditorGUI.EndChangeCheck();
EditorGUI.BeginChangeCheck();
boneWeight = EditorGUIExtra.Weight(boneWeight, 2, names, mixedBoneIndex2, mixedWeight);
changedIndex2 = EditorGUI.EndChangeCheck();
EditorGUI.BeginChangeCheck();
boneWeight = EditorGUIExtra.Weight(boneWeight, 3, names, mixedBoneIndex3, mixedWeight);
changedIndex3 = EditorGUI.EndChangeCheck();
if (EditorGUI.EndChangeCheck())
{
spriteMeshCache.RegisterUndo("modify weights");
if (spriteMeshCache.multiselection)
{
List <Node> selectedNodes = spriteMeshCache.selectedNodes;
foreach (Node node in selectedNodes)
{
BoneWeight l_boneWeight = spriteMeshCache.GetBoneWeight(node);
if (!mixedBoneIndex0 || changedIndex0)
{
l_boneWeight.SetWeight(0, boneWeight.boneIndex0, l_boneWeight.weight0);
}
if (!mixedBoneIndex1 || changedIndex1)
{
l_boneWeight.SetWeight(1, boneWeight.boneIndex1, l_boneWeight.weight1);
}
if (!mixedBoneIndex2 || changedIndex2)
{
l_boneWeight.SetWeight(2, boneWeight.boneIndex2, l_boneWeight.weight2);
}
if (!mixedBoneIndex3 || changedIndex3)
{
l_boneWeight.SetWeight(3, boneWeight.boneIndex3, l_boneWeight.weight3);
}
spriteMeshCache.SetBoneWeight(node, l_boneWeight);
}
}
else
{
spriteMeshCache.SetBoneWeight(spriteMeshCache.selectedNode, boneWeight);
}
}
EditorGUI.showMixedValue = false;
}
}
public void SetBoneWeight(Node node, BoneWeight boneWeight)
{
boneWeights[node.index] = boneWeight;
isDirty = true;
}
public void SmoothWeights(List <Node> targetNodes)
{
float[,] weights = new float[nodes.Count, bindPoses.Count];
Array.Clear(weights, 0, weights.Length);
List <int> usedIndices = new List <int>();
for (int i = 0; i < nodes.Count; i++)
{
usedIndices.Clear();
BoneWeight weight = boneWeights[i];
if (weight.boneIndex0 >= 0)
{
weights[i, weight.boneIndex0] = weight.weight0;
usedIndices.Add(weight.boneIndex0);
}
if (weight.boneIndex1 >= 0 && !usedIndices.Contains(weight.boneIndex1))
{
weights[i, weight.boneIndex1] = weight.weight1;
usedIndices.Add(weight.boneIndex1);
}
if (weight.boneIndex2 >= 0 && !usedIndices.Contains(weight.boneIndex2))
{
weights[i, weight.boneIndex2] = weight.weight2;
usedIndices.Add(weight.boneIndex2);
}
if (weight.boneIndex3 >= 0 && !usedIndices.Contains(weight.boneIndex3))
{
weights[i, weight.boneIndex3] = weight.weight3;
usedIndices.Add(weight.boneIndex3);
}
}
float[] denominator = new float[nodes.Count];
float[,] smoothedWeights = new float[nodes.Count, bindPoses.Count];
Array.Clear(smoothedWeights, 0, smoothedWeights.Length);
for (int i = 0; i < indices.Count / 3; ++i)
{
for (int j = 0; j < 3; ++j)
{
int j1 = (j + 1) % 3;
int j2 = (j + 2) % 3;
for (int k = 0; k < bindPoses.Count; ++k)
{
smoothedWeights[indices[i * 3 + j], k] += weights[indices[i * 3 + j1], k] + weights[indices[i * 3 + j2], k];
}
denominator[indices[i * 3 + j]] += 2;
}
}
for (int i = 0; i < nodes.Count; ++i)
{
for (int j = 0; j < bindPoses.Count; ++j)
{
smoothedWeights[i, j] /= denominator[i];
}
}
float[,] smoothedWeightsTransposed = new float[bindPoses.Count, nodes.Count];
for (int i = 0; i < nodes.Count; ++i)
{
for (int j = 0; j < bindPoses.Count; ++j)
{
smoothedWeightsTransposed[j, i] = smoothedWeights[i, j];
}
}
FillBoneWeights(targetNodes, smoothedWeightsTransposed);
isDirty = true;
}
BoneWeight CreateBoneWeightFromWeights(List <float> weights)
{
BoneWeight boneWeight = new BoneWeight();
float weight = 0f;
int index = -1;
weight = weights.Max();
if (weight < 0.01f)
{
weight = 0f;
}
index = weight > 0f? weights.IndexOf(weight) : -1;
boneWeight.weight0 = weight;
boneWeight.boneIndex0 = index;
if (index >= 0)
{
weights[index] = 0f;
}
weight = weights.Max();
if (weight < 0.01f)
{
weight = 0f;
}
index = weight > 0f? weights.IndexOf(weight) : -1;
boneWeight.weight1 = weight;
boneWeight.boneIndex1 = index;
if (index >= 0)
{
weights[index] = 0f;
}
weight = weights.Max();
if (weight < 0.01f)
{
weight = 0f;
}
index = weight > 0f? weights.IndexOf(weight) : -1;
boneWeight.weight2 = weight;
boneWeight.boneIndex2 = index;
if (index >= 0)
{
weights[index] = 0f;
}
weight = weights.Max();
if (weight < 0.01f)
{
weight = 0f;
}
index = weight > 0f? weights.IndexOf(weight) : -1;
boneWeight.weight3 = weight;
boneWeight.boneIndex3 = index;
float sum = boneWeight.weight0 +
boneWeight.weight1 +
boneWeight.weight2 +
boneWeight.weight3;
if (sum > 0f)
{
boneWeight.weight0 /= sum;
boneWeight.weight1 /= sum;
boneWeight.weight2 /= sum;
boneWeight.weight3 /= sum;
}
return(boneWeight);
}
public static void UpdateAssets(SpriteMesh spriteMesh, SpriteMeshData spriteMeshData)
{
if (spriteMesh && spriteMeshData)
{
string spriteMeshPath = AssetDatabase.GetAssetPath(spriteMesh);
SerializedObject spriteMeshSO = new SerializedObject(spriteMesh);
SerializedProperty sharedMeshProp = spriteMeshSO.FindProperty("m_SharedMesh");
SerializedProperty sharedMaterialsProp = spriteMeshSO.FindProperty("m_SharedMaterials");
if (!spriteMesh.sharedMesh)
{
Mesh mesh = new Mesh();
mesh.hideFlags = HideFlags.HideInHierarchy;
AssetDatabase.AddObjectToAsset(mesh, spriteMeshPath);
spriteMeshSO.Update();
sharedMeshProp.objectReferenceValue = mesh;
spriteMeshSO.ApplyModifiedProperties();
EditorUtility.SetDirty(mesh);
}
spriteMesh.sharedMesh.name = spriteMesh.name;
if (spriteMesh.sharedMaterials.Length == 0)
{
Material material = new Material(Shader.Find("Sprites/Default"));
material.mainTexture = SpriteUtility.GetSpriteTexture(spriteMesh.sprite, false);
AssetDatabase.AddObjectToAsset(material, spriteMeshPath);
spriteMeshSO.Update();
sharedMaterialsProp.arraySize = 1;
sharedMaterialsProp.GetArrayElementAtIndex(0).objectReferenceValue = material;
spriteMeshSO.ApplyModifiedProperties();
}
for (int i = 0; i < spriteMesh.sharedMaterials.Length; i++)
{
Material material = spriteMesh.sharedMaterials [i];
if (material)
{
if (spriteMesh.sprite)
{
material.mainTexture = SpriteUtility.GetSpriteTexture(spriteMesh.sprite, false);
}
material.name = spriteMesh.name + "_" + i;
material.hideFlags = HideFlags.HideInHierarchy;
EditorUtility.SetDirty(material);
}
}
spriteMeshData.hideFlags = HideFlags.HideInHierarchy;
EditorUtility.SetDirty(spriteMeshData);
int width = 0;
int height = 0;
GetSpriteTextureSize(spriteMesh.sprite, ref width, ref height);
Vector3[] vertices = GetMeshVertices(spriteMesh.sprite, spriteMeshData);
Vector2 textureWidthHeightInv = new Vector2(1f / width, 1f / height);
Vector2[] uvs = (new List <Vector2>(spriteMeshData.vertices)).ConvertAll(v => Vector2.Scale(v, textureWidthHeightInv)).ToArray();
Vector3[] normals = (new List <Vector3>(vertices)).ConvertAll(v => Vector3.back).ToArray();
BoneWeight[] boneWeightsData = spriteMeshData.boneWeights;
if (boneWeightsData.Length != spriteMeshData.vertices.Length)
{
boneWeightsData = new BoneWeight[spriteMeshData.vertices.Length];
}
List <UnityEngine.BoneWeight> boneWeights = new List <UnityEngine.BoneWeight>(boneWeightsData.Length);
List <float> verticesOrder = new List <float>(spriteMeshData.vertices.Length);
for (int i = 0; i < boneWeightsData.Length; i++)
{
BoneWeight boneWeight = boneWeightsData[i];
List <KeyValuePair <int, float> > pairs = new List <KeyValuePair <int, float> >();
pairs.Add(new KeyValuePair <int, float>(boneWeight.boneIndex0, boneWeight.weight0));
pairs.Add(new KeyValuePair <int, float>(boneWeight.boneIndex1, boneWeight.weight1));
pairs.Add(new KeyValuePair <int, float>(boneWeight.boneIndex2, boneWeight.weight2));
pairs.Add(new KeyValuePair <int, float>(boneWeight.boneIndex3, boneWeight.weight3));
pairs = pairs.OrderByDescending(s => s.Value).ToList();
UnityEngine.BoneWeight boneWeight2 = new UnityEngine.BoneWeight();
boneWeight2.boneIndex0 = Mathf.Max(0, pairs[0].Key);
boneWeight2.boneIndex1 = Mathf.Max(0, pairs[1].Key);
boneWeight2.boneIndex2 = Mathf.Max(0, pairs[2].Key);
boneWeight2.boneIndex3 = Mathf.Max(0, pairs[3].Key);
boneWeight2.weight0 = pairs[0].Value;
boneWeight2.weight1 = pairs[1].Value;
boneWeight2.weight2 = pairs[2].Value;
boneWeight2.weight3 = pairs[3].Value;
boneWeights.Add(boneWeight2);
float vertexOrder = i;
if (spriteMeshData.bindPoses.Length > 0)
{
vertexOrder = spriteMeshData.bindPoses[boneWeight2.boneIndex0].zOrder * boneWeight2.weight0 +
spriteMeshData.bindPoses[boneWeight2.boneIndex1].zOrder * boneWeight2.weight1 +
spriteMeshData.bindPoses[boneWeight2.boneIndex2].zOrder * boneWeight2.weight2 +
spriteMeshData.bindPoses[boneWeight2.boneIndex3].zOrder * boneWeight2.weight3;
}
verticesOrder.Add(vertexOrder);
}
List <WeightedTriangle> weightedTriangles = new List <WeightedTriangle>(spriteMeshData.indices.Length / 3);
for (int i = 0; i < spriteMeshData.indices.Length; i += 3)
{
int p1 = spriteMeshData.indices[i];
int p2 = spriteMeshData.indices[i + 1];
int p3 = spriteMeshData.indices[i + 2];
weightedTriangles.Add(new WeightedTriangle(p1, p2, p3,
verticesOrder[p1],
verticesOrder[p2],
verticesOrder[p3]));
}
weightedTriangles = weightedTriangles.OrderBy(t => t.weight).ToList();
List <int> indices = new List <int>(spriteMeshData.indices.Length);
for (int i = 0; i < weightedTriangles.Count; ++i)
{
WeightedTriangle t = weightedTriangles[i];
indices.Add(t.p1);
indices.Add(t.p2);
indices.Add(t.p3);
}
List <Matrix4x4> bindposes = (new List <BindInfo>(spriteMeshData.bindPoses)).ConvertAll(p => p.bindPose);
for (int i = 0; i < bindposes.Count; i++)
{
Matrix4x4 bindpose = bindposes [i];
bindpose.m23 = 0f;
bindposes[i] = bindpose;
}
spriteMesh.sharedMesh.Clear();
spriteMesh.sharedMesh.vertices = vertices;
spriteMesh.sharedMesh.uv = uvs;
spriteMesh.sharedMesh.triangles = indices.ToArray();
spriteMesh.sharedMesh.normals = normals;
spriteMesh.sharedMesh.boneWeights = boneWeights.ToArray();
spriteMesh.sharedMesh.bindposes = bindposes.ToArray();
spriteMesh.sharedMesh.RecalculateBounds();
RebuildBlendShapes(spriteMesh);
}
}
public static void UpdateAssets(SpriteMesh spriteMesh)
{
if (spriteMesh)
{
string spriteMeshPath = AssetDatabase.GetAssetPath(spriteMesh);
GameObject go = AssetDatabase.LoadAssetAtPath(spriteMeshPath, typeof(GameObject)) as GameObject;
Mesh mesh = AssetDatabase.LoadAssetAtPath(spriteMeshPath, typeof(Mesh)) as Mesh;
Material material = AssetDatabase.LoadAssetAtPath(spriteMeshPath, typeof(Material)) as Material;
spriteMesh.name = go.name;
if (!mesh)
{
mesh = new Mesh();
AssetDatabase.AddObjectToAsset(mesh, spriteMeshPath);
}
mesh.name = go.name;
if (!material)
{
material = new Material(Shader.Find("Unlit/Transparent"));
material.mainTexture = spriteMesh.sprite.texture;
AssetDatabase.AddObjectToAsset(material, spriteMeshPath);
}
material.name = go.name;
List <Vector3> vertices = new List <Vector3>(spriteMesh.texVertices.Count);
List <Vector2> uvs = new List <Vector2>(spriteMesh.texVertices.Count);
List <Vector3> normals = new List <Vector3>(spriteMesh.texVertices.Count);
List <BoneWeight> boneWeights = new List <BoneWeight>(spriteMesh.texVertices.Count);
for (int i = 0; i < spriteMesh.texVertices.Count; i++)
{
Vertex vertex = spriteMesh.texVertices[i];
vertices.Add(TexCoordToVertex(spriteMesh, vertex.vertex));
uvs.Add(new Vector2(vertex.vertex.x / spriteMesh.sprite.texture.width,
vertex.vertex.y / spriteMesh.sprite.texture.height));
normals.Add(Vector3.back);
List <KeyValuePair <int, float> > pairs = new List <KeyValuePair <int, float> >();
pairs.Add(new KeyValuePair <int, float>(vertex.boneWeight.boneIndex0, vertex.boneWeight.weight0));
pairs.Add(new KeyValuePair <int, float>(vertex.boneWeight.boneIndex1, vertex.boneWeight.weight1));
pairs.Add(new KeyValuePair <int, float>(vertex.boneWeight.boneIndex2, vertex.boneWeight.weight2));
pairs.Add(new KeyValuePair <int, float>(vertex.boneWeight.boneIndex3, vertex.boneWeight.weight3));
pairs = pairs.OrderByDescending(s => s.Value).ToList();
BoneWeight boneWeight = new BoneWeight();
boneWeight.boneIndex0 = pairs[0].Key;
boneWeight.boneIndex1 = pairs[1].Key;
boneWeight.boneIndex2 = pairs[2].Key;
boneWeight.boneIndex3 = pairs[3].Key;
boneWeight.weight0 = pairs[0].Value;
boneWeight.weight1 = pairs[1].Value;
boneWeight.weight2 = pairs[2].Value;
boneWeight.weight3 = pairs[3].Value;
boneWeights.Add(boneWeight);
}
mesh.Clear();
mesh.vertices = vertices.ToArray();
mesh.uv = uvs.ToArray();
mesh.triangles = spriteMesh.indices.ToArray();
mesh.normals = normals.ToArray();
mesh.boneWeights = boneWeights.ToArray();
mesh.bindposes = spriteMesh.bindPoses.ConvertAll(bindPose => bindPose.bindPose).ToArray();
mesh.RecalculateBounds();
}
}