public static void Rebuild()
{
pb_Object[] pbObjs = (pb_Object[])GameObject.FindObjectsOfType(typeof(pb_Object));
foreach (pb_Object pb in pbObjs)
{
pb_IntArray[] val = pb.sharedIndices;
List <int> empty = new List <int>();
for (int i = 0; i < val.Length; i++)
{
if (val[i].IsEmpty())
{
empty.Add(i);
}
}
pb_IntArray[] trimmed = new pb_IntArray[val.Length - empty.Count];
int n = 0;
for (int i = 0; i < trimmed.Length; i++)
{
if (!empty.Contains(i))
{
trimmed[n++] = val[i];
}
}
pb.SetSharedIndices(trimmed);
}
}
/**
* \brief Call this to ensure that the mesh is unique. Basically performs a DeepCopy and assigns back to self.
*/
public void MakeUnique()
{
pb_Face[] q = new pb_Face[_faces.Length];
for (int i = 0; i < q.Length; i++)
{
q[i] = new pb_Face(_faces[i]);
}
pb_IntArray[] sv = new pb_IntArray[_sharedIndices.Length];
System.Array.Copy(_sharedIndices, sv, sv.Length);
SetSharedIndices(sv);
SetFaces(q);
Vector3[] v = new Vector3[vertexCount];
System.Array.Copy(_vertices, v, vertexCount);
SetVertices(v);
if (_uv != null && _uv.Length == vertexCount)
{
Vector2[] u = new Vector2[vertexCount];
System.Array.Copy(_uv, u, vertexCount);
SetUV(u);
}
msh = pbUtil.DeepCopyMesh(msh);
ToMesh();
Refresh();
}
/**
* \brief Returns a copy of the sharedIndices array.
*/
public pb_IntArray[] GetSharedIndices()
{
int sil = _sharedIndices.Length;
pb_IntArray[] sharedIndicesCopy = new pb_IntArray[sil];
for (int i = 0; i < sil; i++)
{
int[] arr = new int[_sharedIndices[i].Length];
System.Array.Copy(_sharedIndices[i].array, arr, arr.Length);
sharedIndicesCopy[i] = new pb_IntArray(arr);
}
return(sharedIndicesCopy);
}
public static void Rebuild()
{
pb_Object[] pbObjs = (pb_Object[])GameObject.FindObjectsOfType(typeof(pb_Object));
foreach(pb_Object pb in pbObjs)
{
pb_IntArray[] val = pb.sharedIndices;
List<int> empty = new List<int>();
for(int i = 0; i < val.Length; i++)
if(val[i].IsEmpty())
empty.Add(i);
pb_IntArray[] trimmed = new pb_IntArray[val.Length-empty.Count];
int n = 0;
for(int i = 0; i < trimmed.Length; i++)
if(!empty.Contains(i))
trimmed[n++] = val[i];
pb.SetSharedIndices( trimmed );
}
}
/**
* Similar to Merge vertices, expect that this method only collapses vertices within
* a specified distance of one another (typically epsilon). Returns true if any action
* was taken, false otherwise. Outputs indices that have been welded in the @welds var.
*/
public static bool WeldVertices(this pb_Object pb, int[] indices, float delta, out int[] welds)
{
List <int> universal = pb.sharedIndices.GetUniversalIndices(indices).ToList();
Vector3[] v = pb.vertices;
HashSet <int> used = new HashSet <int>();
KDTree <int> tree = new KDTree <int>(3, 48); // dimensions (xyz), node size
for (int i = 0; i < universal.Count; i++)
{
Vector3 vert = v[pb.sharedIndices[universal[i]][0]];
tree.AddPoint(new double[] { vert.x, vert.y, vert.z }, universal[i]);
}
List <List <int> > groups = new List <List <int> >();
double[] point = new double[3] {
0, 0, 0
};
int[][] si = pb.sharedIndices.ToArray();
for (int i = 0; i < universal.Count; i++)
{
if (used.Contains(universal[i]))
{
continue;
}
int tri = si[universal[i]][0];
point[0] = v[tri].x;
point[1] = v[tri].y;
point[2] = v[tri].z;
NearestNeighbour <int> neighborIterator = tree.NearestNeighbors(point, 64, delta);
List <int> neighbors = new List <int>();
while (neighborIterator.MoveNext())
{
if (used.Contains(neighborIterator.Current))
{
continue;
}
used.Add(neighborIterator.Current);
neighbors.Add(neighborIterator.Current);
}
used.Add(universal[i]);
groups.Add(neighbors);
}
pb_IntArray[] rebuilt = new pb_IntArray[groups.Count]; // + remainingCount ];
welds = new int[groups.Count];
for (int i = 0; i < groups.Count; i++)
{
rebuilt[i] = new pb_IntArray(groups[i].SelectMany(x => pb.sharedIndices[x].array).ToArray());
welds[i] = rebuilt[i][0];
}
foreach (pb_IntArray arr in rebuilt)
{
Vector3 avg = pb_Math.Average(pbUtil.ValuesWithIndices(v, arr.array));
foreach (int i in arr.array)
{
v[i] = avg;
}
}
pb.SetVertices(v);
// profiler.EndSample();
pb_IntArray[] remaining = pb.sharedIndices.Where((val, index) => !used.Contains(index)).ToArray();
rebuilt = pbUtil.Concat(rebuilt, remaining);
pb.SetSharedIndices(rebuilt);
return(true);
}
