public void MergeVertices(List <NullVertexStruct> vertices, List <NullMergeIndex> indexMapping)
{
indexMapping.Clear();
if (vertices == null || vertices.Count < 3)
{
return;
}
for (int i = 0; i < vertices.Count; i++)
{
NullVertexStruct vertex = vertices[i];
bool merged = false;
foreach (NullMergeIndex index in indexMapping)
{
if (vertices[index.index].IsEquals(vertex))
{
merged = true;
index.equalOnes.Add(i);
break;
}
}
if (!merged)
{
NullMergeIndex index = new NullMergeIndex(i);
indexMapping.Add(index);
}
}
}
public static List <T> ReCreateCompactData <T>(List <T> sourceData, List <NullMergeIndex> indexMapping)
{
if (sourceData == null && sourceData.Count > 0)
{
return(null);
}
List <T> dst = new List <T>();
for (int i = 0; i < indexMapping.Count; i++)
{
NullMergeIndex index = indexMapping[i];
dst.Add(sourceData[index.index]);
}
return(dst);
}
public bool BuildIndexedPrimitives(List <NullMergeIndex> indexMapping)
{
//build new node-array
List <NullSkeletonBindingNode> newBindingNodeArray = new List <NullSkeletonBindingNode>();
for (int i = 0; i < indexMapping.Count; i++)
{
newBindingNodeArray.Add(new NullSkeletonBindingNode(CurrentVersion));
}
//extract
for (int i = 0; i < indexMapping.Count; i++)
{
NullMemoryStream stream = NullMemoryStream.ReadAndWrite();
NullMergeIndex index = indexMapping[i];
mBindingNodeArray[index.index].SaveToStream(stream);
newBindingNodeArray[i].LoadFromStream(stream);
}
for (int i = 0; i < mBindingNodeArray.Count; i++)
{
mBindingNodeArray[i].Clear();
}
mBindingNodeArray = newBindingNodeArray;
return(true);
}
public bool BuildIndexedPrimitives(List <NullMergeIndex> indexMapping)
{
if ((GetMeshObjectType() != NullPrimitiveType.MOT_TRIANGLES) || (GetTriangleCount() < 2))
{
return(false);
}
List <NullVertexStruct> floatData = PrepareFloatDataForVertexMerging();
if (floatData == null)
{
return(false);
}
MergeVertices(floatData, indexMapping);
//update mesh data
List <Vector3> newVertices = ReCreateCompactData(VertexPosArray, indexMapping);
VertexPosArray.Clear();
VertexPosArray = newVertices;
List <uint> newColors = ReCreateCompactData(VertexColorArray, indexMapping);
if (VertexColorArray != null && VertexColorArray.Count > 0)
{
VertexColorArray.Clear();
VertexColorArray = newColors;
}
List <Vector3> newNormals = ReCreateCompactData(NormalArray, indexMapping);
if (NormalArray != null && NormalArray.Count > 0)
{
NormalArray.Clear();
NormalArray = newNormals;
}
List <Vector3> newTangents = ReCreateCompactData(TangentArray, indexMapping);
if (TangentArray != null && TangentArray.Count > 0)
{
TangentArray.Clear();
TangentArray = newTangents;
}
List <Vector3> newBinormals = ReCreateCompactData(BinormalArray, indexMapping);
if (BinormalArray != null && BinormalArray.Count > 0)
{
BinormalArray.Clear();
BinormalArray = newBinormals;
}
//update uv groups
if (UVGroups != null)
{
UVGroups.BuildIndexedPrimitives(indexMapping);
}
List <int> faceIndexes = new List <int>();
for (int i = 0; i < GetTriangleCount(); i++)
{
faceIndexes.Add(i * 3 + 0);
faceIndexes.Add(i * 3 + 1);
faceIndexes.Add(i * 3 + 2);
}
for (int i = 0; i < indexMapping.Count; i++)
{
NullMergeIndex index = indexMapping[i];
faceIndexes[index.index] = i;
for (int j = 0; j < index.equalOnes.Count; j++)
{
faceIndexes[index.equalOnes[j]] = i;
}
}
FaceArray.Clear();
for (int i = 0; i < GetTriangleCount(); i++)
{
FaceArray.Add(new Vector3Int(faceIndexes[i * 3 + 0], faceIndexes[i * 3 + 1], faceIndexes[i * 3 + 2]));
}
SetMeshObjectType(NullPrimitiveType.MOT_INDEXED_PRIMITIVES);
return(true);
}