public static void CopyDataPerVertex(this Mesh mesh, RenderChunk chunk)
{
if (mesh == null)
{
Debug.Log("CopyDataPerVertex method need some data, mesh == null..");
return;
}
int b1Cnt = 0, b2Cnt = 0, b3Cnt = 0, b4Cnt = 0;
{
chunk.vertexCount = mesh.vertexCount;
}
{
DataPerVertex[] dataPerVertex = new DataPerVertex[mesh.vertexCount];
SkinPerVertex[] skinPerVertex = new SkinPerVertex[mesh.vertexCount];
Vector3[] vertices = mesh.vertices;
Vector3[] normals = mesh.normals;
Vector4[] tangents = mesh.tangents;
Vector2[] uv = mesh.uv;
BoneWeight[] sourceBoneWeights = mesh.boneWeights;
// This code very long time
for (int i = 0; i < dataPerVertex.Length; i++)
{
dataPerVertex[i] =
new DataPerVertex()
{
position = vertices[i],
normal = normals[i],
tangent = tangents[i],
uv = uv[i],
};
skinPerVertex[i] =
new SkinPerVertex()
{
weight = new Vector4(sourceBoneWeights[i].weight0, sourceBoneWeights[i].weight1, sourceBoneWeights[i].weight2, sourceBoneWeights[i].weight3),
index = new Integer4(sourceBoneWeights[i].boneIndex0, sourceBoneWeights[i].boneIndex1, sourceBoneWeights[i].boneIndex2, sourceBoneWeights[i].boneIndex3),
};
if (skinPerVertex[i].weight.y == 0)
{
b1Cnt++;
}
else if (skinPerVertex[i].weight.z == 0)
{
b2Cnt++;
}
else if (skinPerVertex[i].weight.w == 0)
{
b3Cnt++;
}
else
{
b4Cnt++;
}
}
chunk.boneVertexCount = new Integer4(b1Cnt, b2Cnt, b3Cnt, b4Cnt);
chunk.dataPerVertex = dataPerVertex;
chunk.skinPerVertex = skinPerVertex;
}
}
public static unsafe float GetWeightDistance(this SkinPerVertex info1, SkinPerVertex info2)
{
bool *isValidArray = stackalloc bool[8];
float wholeDistance = 0;
bool isCaculationValid = false;
for (int i = 0; i < 4; i++)
{
isValidArray[i] = info1.weight[i] != 0f;
isValidArray[i + 4] = info2.weight[i] != 0f;
}
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
if (isValidArray[i] && isValidArray[j + 4])
{
if (info2.index[j] == info1.index[i])
{
isCaculationValid = true;
}
}
}
}
if (!isCaculationValid)
{
return(float.MaxValue);
}
for (int i = 0; i < 4; i++)
{
if (isValidArray[i])
{
float weight = info1.weight[i];
for (int j = i; j < 4; j++)
{
if (isValidArray[j + 4])
{
if (info2.index[j] == info1.index[i])
{
weight -= info2.weight[j];
isValidArray[j + 4] = false;
break;
}
}
}
wholeDistance += weight * weight;
isValidArray[i] = false;
}
if (isValidArray[i + 4])
{
float weight = info2.weight[i];
for (int j = i; j < 4; j++)
{
if (isValidArray[j])
{
if (info1.index[j] == info2.index[i])
{
weight -= info1.weight[j];
isValidArray[j] = false;
break;
}
}
}
wholeDistance += weight * weight;
isValidArray[i + 4] = false;
}
}
return(Mathf.Sqrt(wholeDistance));
}
