public static BoneWeight ToBoneWeight(this EditableBoneWeight editableBoneWeight, bool sortByWeight)
{
BoneWeight boneWeight = new BoneWeight();
int channelCount = editableBoneWeight.GetChannelCount();
if (channelCount > 0)
{
s_BoneWeightDataList.Clear();
s_BoneWeightDataList.Capacity = editableBoneWeight.GetChannelCount();
for (int i = 0; i < channelCount; ++i)
{
s_BoneWeightDataList.Add(editableBoneWeight.GetBoneWeightData(i));
}
if (sortByWeight)
{
s_BoneWeightDataList.Sort();
}
if (s_BoneWeightDataList.Count >= 1)
{
boneWeight.boneIndex0 = s_BoneWeightDataList[0].boneIndex;
boneWeight.weight0 = s_BoneWeightDataList[0].weight;
}
if (s_BoneWeightDataList.Count >= 2)
{
boneWeight.boneIndex1 = s_BoneWeightDataList[1].boneIndex;
boneWeight.weight1 = s_BoneWeightDataList[1].weight;
}
if (s_BoneWeightDataList.Count >= 3)
{
boneWeight.boneIndex2 = s_BoneWeightDataList[2].boneIndex;
boneWeight.weight2 = s_BoneWeightDataList[2].weight;
}
if (s_BoneWeightDataList.Count >= 4)
{
boneWeight.boneIndex3 = s_BoneWeightDataList[3].boneIndex;
boneWeight.weight3 = s_BoneWeightDataList[3].weight;
}
}
return(boneWeight);
}
public static void UnifyChannelsWithSameBoneIndex(this EditableBoneWeight editableBoneWeight)
{
int channelCount = editableBoneWeight.GetChannelCount();
for (int i = 0; i < channelCount; ++i)
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
if (!editableBoneWeight.IsChannelEnabled(i))
{
continue;
}
bool weightChanged = false;
for (int j = i + 1; j < channelCount; ++j)
{
BoneWeightData otherData = editableBoneWeight.GetBoneWeightData(j);
if (otherData.boneIndex == data.boneIndex)
{
weightChanged = true;
data.weight += otherData.weight;
editableBoneWeight.EnableChannel(j, false);
}
}
if (weightChanged)
{
editableBoneWeight.SetBoneWeightData(i, data);
editableBoneWeight.CompensateOtherChannels(i);
}
}
}
public static void RemoveBone(this EditableBoneWeight editableBoneWeight, int boneIndex)
{
int channelCount = editableBoneWeight.GetChannelCount();
for (int i = 0; i < channelCount; ++i)
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(i);
if (data.boneIndex > boneIndex)
{
data.boneIndex -= 1;
}
else if (data.boneIndex == boneIndex)
{
data.boneIndex = 0;
data.weight = 0f;
editableBoneWeight.EnableChannel(i, false);
}
editableBoneWeight.SetBoneWeightData(i, data);
}
editableBoneWeight.NormalizeChannels();
editableBoneWeight.SortChannels();
}
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 ClampChannels(this EditableBoneWeight editableBoneWeight, int numChannels, bool sortChannels = true)
{
if (sortChannels)
{
editableBoneWeight.SortChannels();
}
while (editableBoneWeight.GetChannelCount() > numChannels)
{
editableBoneWeight.RemoveChannel(numChannels);
}
}
public static void ValidateChannels(this EditableBoneWeight editableBoneWeight)
{
for (int channelIndex = 0; channelIndex < editableBoneWeight.GetChannelCount(); ++channelIndex)
{
BoneWeightData data = editableBoneWeight.GetBoneWeightData(channelIndex);
if (!editableBoneWeight.IsChannelEnabled(channelIndex))
{
data.weight = 0f;
}
data.weight = Mathf.Clamp01(data.weight);
editableBoneWeight.SetBoneWeightData(channelIndex, data);
}
}
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 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);
}
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);
}
}
}
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);
}
}
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);
}
}
}