private static EditableBoneWeight Lerp(EditableBoneWeight first, EditableBoneWeight second, float t)
{
EditableBoneWeight result = new EditableBoneWeight();
foreach (BoneWeightChannel channel in first)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= (1f - t);
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
foreach (BoneWeightChannel channel in second)
{
if (!channel.enabled)
{
continue;
}
BoneWeightData data = channel.boneWeightData;
data.weight *= t;
if (data.weight > 0f)
{
result.AddChannel(data, true);
}
}
result.UnifyChannelsWithSameBoneIndex();
if (result.GetWeightSum() > 1f)
{
result.NormalizeChannels();
}
result.FilterChannels(0f);
result.ClampChannels(4, true);
return(result);
}
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);
}
}
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);
}