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, int iterations, out BoneWeight[] boneWeightOut)
{
Debug.Assert(boneWeightIn != null);
boneWeightOut = new BoneWeight[boneWeightIn.Length];
PrepareTempBuffers(boneWeightIn.Length, boneCount);
for (int i = 0; i < boneWeightIn.Length; ++i)
{
s_BoneWeight.SetFromBoneWeight(boneWeightIn[i]);
for (var j = 0; j < s_BoneWeight.Count; ++j)
{
if (s_BoneWeight[j].enabled)
{
m_DataInTemp[i, s_BoneWeight[j].boneIndex] = s_BoneWeight[j].weight;
}
}
}
for (var i = 0; i < iterations; ++i)
{
SmoothPerVertexData(indices, m_DataInTemp, m_DataOutTemp);
}
for (var i = 0; i < boneWeightIn.Length; ++i)
{
s_BoneWeight.Clear();
for (var j = 0; j < boneCount; ++j)
{
var weight = m_DataOutTemp[i, j];
var boneIndex = weight > 0f ? j : 0;
s_BoneWeight.AddChannel(boneIndex, weight, weight > 0);
}
s_BoneWeight.Clamp(4);
s_BoneWeight.Normalize();
boneWeightOut[i] = s_BoneWeight.ToBoneWeight(false);
}
}
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);
}
}
}
