public static void GetMultiEditChannelData(this SpriteMeshData spriteMeshData, ISelection selection, int channelIndex,
out bool channelEnabled, out BoneWeightData boneWeightData,
out bool isChannelEnabledMixed, out bool isBoneIndexMixed, out bool isWeightMixed)
{
if (selection == null)
{
throw new ArgumentNullException("selection is null");
}
bool first = true;
channelEnabled = false;
boneWeightData = new BoneWeightData();
isChannelEnabledMixed = false;
isBoneIndexMixed = false;
isWeightMixed = false;
foreach (int i in selection)
{
EditableBoneWeight editableBoneWeight = spriteMeshData.vertices[i].editableBoneWeight;
BoneWeightData otherBoneWeightData = editableBoneWeight.GetBoneWeightData(channelIndex);
if (first)
{
channelEnabled = editableBoneWeight.IsChannelEnabled(channelIndex);
boneWeightData.boneIndex = otherBoneWeightData.boneIndex;
boneWeightData.weight = otherBoneWeightData.weight;
first = false;
}
else
{
if (channelEnabled != editableBoneWeight.IsChannelEnabled(channelIndex))
{
isChannelEnabledMixed = true;
channelEnabled = false;
}
if (boneWeightData.boneIndex != otherBoneWeightData.boneIndex)
{
isBoneIndexMixed = true;
boneWeightData.boneIndex = -1;
}
if (boneWeightData.weight != otherBoneWeightData.weight)
{
isWeightMixed = true;
boneWeightData.weight = 0f;
}
}
}
}
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 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 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 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);
}
}
}