public static float GetWeightSum(this EditableBoneWeight editableBoneWeight)
{
float sum = 0f;
for (int i = 0; i < editableBoneWeight.GetChannelCount(); ++i)
{
if (editableBoneWeight.IsChannelEnabled(i))
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
sum += data.weight;
}
}
return(sum);
}
public static void CompensateOtherChannels(this EditableBoneWeight editableBoneWeight, int masterChannelIndex)
{
ValidateChannels(editableBoneWeight);
int validChannelCount = 0;
float sum = 0f;
for (int i = 0; i < editableBoneWeight.GetChannelCount(); ++i)
{
if (i != masterChannelIndex && editableBoneWeight.IsChannelEnabled(i))
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
sum += data.weight;
++validChannelCount;
}
}
if (validChannelCount == 0)
{
return;
}
BoneWeightData channelData = editableBoneWeight.GetBoneWeightData(masterChannelIndex);
float targetSum = 1f - channelData.weight;
for (int i = 0; i < editableBoneWeight.GetChannelCount(); ++i)
{
if (i != masterChannelIndex && editableBoneWeight.IsChannelEnabled(i))
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
if (sum == 0f)
{
data.weight = targetSum / validChannelCount;
}
else
{
data.weight = data.weight * targetSum / sum;
}
editableBoneWeight.SetBoneWeightData(i, data);
}
}
}
public static void SetFromBoneWeight(this EditableBoneWeight editableBoneWeight, BoneWeight boneWeight)
{
editableBoneWeight.Clamp(4, false);
while (editableBoneWeight.Count < 4)
{
editableBoneWeight.AddChannel(0, 0f, false);
}
for (var i = 0; i < 4; ++i)
{
var weight = boneWeight.GetWeight(i);
editableBoneWeight[i].boneIndex = boneWeight.GetBoneIndex(i);
editableBoneWeight[i].weight = weight;
editableBoneWeight[i].enabled = weight > 0f;
}
}
public static int GetChannelFromBoneIndex(this EditableBoneWeight editableBoneWeight, int boneIndex)
{
for (int i = 0; i < editableBoneWeight.GetChannelCount(); ++i)
{
if (editableBoneWeight.IsChannelEnabled(i))
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
if (data.boneIndex == boneIndex)
{
return(i);
}
}
}
return(-1);
}
private void SetWeight(float value, bool createNewChannel = true)
{
if (boneIndex == -1)
{
return;
}
Debug.Assert(selection != null);
for (int i = 0; i < spriteMeshData.vertices.Count; ++i)
{
if (selection.Count == 0 && emptySelectionEditsAll ||
selection.Count > 0 && selection.IsSelected(i))
{
EditableBoneWeight editableBoneWeight = spriteMeshData.vertices[i].editableBoneWeight;
int channel = editableBoneWeight.GetChannelFromBoneIndex(boneIndex);
if (channel == -1)
{
if (createNewChannel)
{
editableBoneWeight.AddChannel(new BoneWeightData(boneIndex, 0f), true);
channel = editableBoneWeight.GetChannelFromBoneIndex(boneIndex);
}
else
{
continue;
}
}
BoneWeightData data = editableBoneWeight.GetBoneWeightData(channel);
data.weight += value;
editableBoneWeight.SetBoneWeightData(channel, data);
if (editableBoneWeight.GetWeightSum() > 1f)
{
editableBoneWeight.CompensateOtherChannels(channel);
}
editableBoneWeight.FilterChannels(0f);
}
}
}
public static void FilterChannels(this EditableBoneWeight editableBoneWeight, float weightTolerance)
{
int channelCount = editableBoneWeight.GetChannelCount();
for (int i = 0; i < channelCount; ++i)
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
if (data.weight <= weightTolerance)
{
data.boneIndex = 0;
data.weight = 0f;
editableBoneWeight.SetBoneWeightData(i, data);
editableBoneWeight.EnableChannel(i, false);
}
}
}
private static void Lerp(EditableBoneWeight first, EditableBoneWeight second, ref EditableBoneWeight result, float t)
{
result.Clear();
foreach (BoneWeightChannel channel in first)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * (1f - t);
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
foreach (BoneWeightChannel channel in second)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * t;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
result.UnifyChannelsWithSameBoneIndex();
result.Clamp(4);
if (result.Sum() > 1f)
{
result.Normalize();
}
result.FilterChannels(0f);
}
public static void SmoothWeights(BoneWeight[] boneWeightIn, IList <int> indices, int boneCount, BoneWeight[] boneWeightOut)
{
Debug.Assert(boneWeightIn != null);
Debug.Assert(boneWeightOut != null);
Debug.Assert(boneWeightIn != boneWeightOut);
Debug.Assert(boneWeightIn.Length == boneWeightOut.Length);
PrepareTempBuffers(boneWeightIn.Length, boneCount);
EditableBoneWeight editableBoneWeight = new EditableBoneWeight();
for (int i = 0; i < boneWeightIn.Length; ++i)
{
editableBoneWeight.SetFromBoneWeight(boneWeightIn[i]);
for (int channelIndex = 0; channelIndex < editableBoneWeight.GetChannelCount(); ++channelIndex)
{
if (editableBoneWeight.IsChannelEnabled(channelIndex))
{
BoneWeightData boneWeightData = editableBoneWeight.GetBoneWeightData(channelIndex);
m_DataInTemp[i, boneWeightData.boneIndex] = boneWeightData.weight;
}
}
}
SmoothPerVertexData(indices, m_DataInTemp, m_DataOutTemp);
for (int i = 0; i < boneWeightIn.Length; ++i)
{
editableBoneWeight.Clear();
for (int boneIndex = 0; boneIndex < boneCount; ++boneIndex)
{
float weight = m_DataOutTemp[i, boneIndex];
int boneIndex2 = weight > 0f ? boneIndex : 0;
editableBoneWeight.AddChannel(new BoneWeightData(boneIndex2, weight), weight > 0);
}
editableBoneWeight.ClampChannels(4);
editableBoneWeight.NormalizeChannels();
boneWeightOut[i] = editableBoneWeight.ToBoneWeight(false);
}
}
protected void PrepareSmoothingBuffers()
{
if (m_SmoothValues == null || m_SmoothValues.Length != spriteMeshData.vertexCount)
{
m_SmoothValues = new float[spriteMeshData.vertexCount];
}
Array.Clear(m_SmoothValues, 0, m_SmoothValues.Length);
m_SmoothedBoneWeights.Clear();
BoneWeight[] boneWeights = new BoneWeight[spriteMeshData.vertexCount];
for (int i = 0; i < spriteMeshData.vertexCount; i++)
{
EditableBoneWeight editableBoneWeight = spriteMeshData.GetWeight(i);
boneWeights[i] = editableBoneWeight.ToBoneWeight(false);
}
m_SmoothedBoneWeights.Add(boneWeights);
}
public static void Normalize(this EditableBoneWeight editableBoneWeight)
{
ValidateChannels(editableBoneWeight);
var sum = editableBoneWeight.Sum();
if (sum == 0f || sum == 1f)
{
return;
}
var sumInv = 1f / sum;
for (var i = 0; i < editableBoneWeight.Count; ++i)
{
if (editableBoneWeight[i].enabled)
{
editableBoneWeight[i].weight *= sumInv;
}
}
}
public static void SetMultiEditChannelData(this SpriteMeshData spriteMeshData, ISelection selection, int channelIndex,
bool referenceChannelEnabled, bool newChannelEnabled, BoneWeightData referenceData, BoneWeightData newData)
{
if (selection == null)
{
throw new ArgumentNullException("selection is null");
}
bool channelEnabledChanged = referenceChannelEnabled != newChannelEnabled;
bool boneIndexChanged = referenceData.boneIndex != newData.boneIndex;
bool weightChanged = referenceData.weight != newData.weight;
foreach (int i in selection)
{
EditableBoneWeight editableBoneWeight = spriteMeshData.vertices[i].editableBoneWeight;
BoneWeightData data = editableBoneWeight.GetBoneWeightData(channelIndex);
if (channelEnabledChanged)
{
editableBoneWeight.EnableChannel(channelIndex, newChannelEnabled);
}
if (boneIndexChanged)
{
data.boneIndex = newData.boneIndex;
}
if (weightChanged)
{
data.weight = newData.weight;
}
editableBoneWeight.SetBoneWeightData(channelIndex, data);
if (channelEnabledChanged || weightChanged)
{
editableBoneWeight.CompensateOtherChannels(channelIndex);
}
}
}
public static void CompensateOtherChannels(this EditableBoneWeight editableBoneWeight, int masterChannel)
{
ValidateChannels(editableBoneWeight);
var validChannelCount = 0;
var sum = 0f;
for (int i = 0; i < editableBoneWeight.Count; ++i)
{
if (i != masterChannel && editableBoneWeight[i].enabled)
{
sum += editableBoneWeight[i].weight;
++validChannelCount;
}
}
if (validChannelCount == 0)
{
return;
}
var targetSum = 1f - editableBoneWeight[masterChannel].weight;
for (var i = 0; i < editableBoneWeight.Count; ++i)
{
if (i != masterChannel && editableBoneWeight[i].enabled)
{
if (sum == 0f)
{
editableBoneWeight[i].weight = targetSum / validChannelCount;
}
else
{
editableBoneWeight[i].weight *= targetSum / sum;
}
}
}
}
public static void NormalizeChannels(this EditableBoneWeight editableBoneWeight)
{
ValidateChannels(editableBoneWeight);
float sum = editableBoneWeight.GetWeightSum();
if (sum == 0f || sum == 1f)
{
return;
}
for (int i = 0; i < editableBoneWeight.GetChannelCount(); ++i)
{
if (editableBoneWeight.IsChannelEnabled(i))
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
data.weight = data.weight / sum;
editableBoneWeight.SetBoneWeightData(i, data);
}
}
}
public void CalculateWeights(IWeightsGenerator weightsGenerator, ISelection <int> selection, float filterTolerance)
{
Debug.Assert(spriteMeshData != null);
Vector2[] controlPoints;
Edge[] bones;
int[] pins;
GetControlPoints(out controlPoints, out bones, out pins);
Vector2[] vertices = new Vector2[spriteMeshData.vertexCount];
for (int i = 0; i < spriteMeshData.vertexCount; ++i)
{
vertices[i] = spriteMeshData.GetPosition(i);
}
BoneWeight[] boneWeights = weightsGenerator.Calculate(vertices, spriteMeshData.edges.ToArray(), controlPoints, bones, pins);
Debug.Assert(boneWeights.Length == spriteMeshData.vertexCount);
for (int i = 0; i < spriteMeshData.vertexCount; ++i)
{
if (selection == null || (selection.Count == 0 || selection.Contains(i)))
{
EditableBoneWeight editableBoneWeight = EditableBoneWeightUtility.CreateFromBoneWeight(boneWeights[i]);
if (filterTolerance > 0f)
{
editableBoneWeight.FilterChannels(filterTolerance);
editableBoneWeight.Normalize();
}
spriteMeshData.SetWeight(i, editableBoneWeight);
}
}
}
private void CreateVertex(Vector2 position, int edgeIndex)
{
position = MeshModuleUtility.ClampPositionToRect(position, spriteMeshData.frame);
undoObject.RegisterCompleteObjectUndo("Create Vertex");
BoneWeight boneWeight = new BoneWeight();
Vector3Int indices;
Vector3 barycentricCoords;
if (spriteMeshData.FindTriangle(position, out indices, out barycentricCoords))
{
EditableBoneWeight bw1 = spriteMeshData.vertices[indices.x].editableBoneWeight;
EditableBoneWeight bw2 = spriteMeshData.vertices[indices.y].editableBoneWeight;
EditableBoneWeight bw3 = spriteMeshData.vertices[indices.z].editableBoneWeight;
EditableBoneWeight result = new EditableBoneWeight();
foreach (BoneWeightChannel channel in bw1)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= barycentricCoords.x;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
foreach (BoneWeightChannel channel in bw2)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= barycentricCoords.y;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
foreach (BoneWeightChannel channel in bw3)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= barycentricCoords.z;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
result.UnifyChannelsWithSameBoneIndex();
result.FilterChannels(0f);
result.ClampChannels(4, true);
boneWeight = result.ToBoneWeight(true);
}
else if (edgeIndex != -1)
{
Edge edge = spriteMeshData.edges[edgeIndex];
Vector2 pos1 = spriteMeshData.vertices[edge.index1].position;
Vector2 pos2 = spriteMeshData.vertices[edge.index2].position;
Vector2 dir1 = (position - pos1);
Vector2 dir2 = (pos2 - pos1);
float t = Vector2.Dot(dir1, dir2.normalized) / dir2.magnitude;
t = Mathf.Clamp01(t);
BoneWeight bw1 = spriteMeshData.vertices[edge.index1].editableBoneWeight.ToBoneWeight(true);
BoneWeight bw2 = spriteMeshData.vertices[edge.index2].editableBoneWeight.ToBoneWeight(true);
boneWeight = EditableBoneWeightUtility.Lerp(bw1, bw2, t);
}
spriteMeshData.CreateVertex(position, edgeIndex);
spriteMeshData.vertices[spriteMeshData.vertices.Count - 1].editableBoneWeight.SetFromBoneWeight(boneWeight);
spriteMeshData.Triangulate(triangulator);
}
public void SetWeight(int index, EditableBoneWeight weight)
{
m_Vertices[index].editableBoneWeight = weight;
}
private void CreateVertex(Vector2 position, int edgeIndex)
{
position = MathUtility.ClampPositionToRect(position, frame);
cacheUndo.BeginUndoOperation(TextContent.createVertex);
BoneWeight boneWeight = new BoneWeight();
Vector3Int indices;
Vector3 barycentricCoords;
if (m_SpriteMeshDataController.FindTriangle(position, out indices, out barycentricCoords))
{
EditableBoneWeight bw1 = m_SpriteMeshData.GetWeight(indices.x);
EditableBoneWeight bw2 = m_SpriteMeshData.GetWeight(indices.y);
EditableBoneWeight bw3 = m_SpriteMeshData.GetWeight(indices.z);
EditableBoneWeight result = new EditableBoneWeight();
foreach (BoneWeightChannel channel in bw1)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * barycentricCoords.x;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
foreach (BoneWeightChannel channel in bw2)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * barycentricCoords.y;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
foreach (BoneWeightChannel channel in bw3)
{
if (!channel.enabled)
{
continue;
}
var weight = channel.weight * barycentricCoords.z;
if (weight > 0f)
{
result.AddChannel(channel.boneIndex, weight, true);
}
}
result.UnifyChannelsWithSameBoneIndex();
result.FilterChannels(0f);
result.Clamp(4, true);
boneWeight = result.ToBoneWeight(true);
}
else if (edgeIndex != -1)
{
Edge edge = m_SpriteMeshData.edges[edgeIndex];
Vector2 pos1 = m_SpriteMeshData.GetPosition(edge.index1);
Vector2 pos2 = m_SpriteMeshData.GetPosition(edge.index2);
Vector2 dir1 = (position - pos1);
Vector2 dir2 = (pos2 - pos1);
float t = Vector2.Dot(dir1, dir2.normalized) / dir2.magnitude;
t = Mathf.Clamp01(t);
BoneWeight bw1 = m_SpriteMeshData.GetWeight(edge.index1).ToBoneWeight(true);
BoneWeight bw2 = m_SpriteMeshData.GetWeight(edge.index2).ToBoneWeight(true);
boneWeight = EditableBoneWeightUtility.Lerp(bw1, bw2, t);
}
m_SpriteMeshDataController.CreateVertex(position, edgeIndex);
m_SpriteMeshData.GetWeight(m_SpriteMeshData.vertexCount - 1).SetFromBoneWeight(boneWeight);
Triangulate();
}
public static bool HasBoneIndex(this EditableBoneWeight editableBoneWeight, int boneIndex)
{
return(GetChannelFromBoneIndex(editableBoneWeight, boneIndex) > -1);
}