static Mesh MergeSubsets(List <Subset> aSubsets, int aLightmapID)
{
Mesh result = new Mesh();
Subset resultSubset = new Subset();
List <List <int> > indices = new List <List <int> >();
for (int i = 0; i < aSubsets.Count; ++i)
{
if (aSubsets[i].mLightmapID != aLightmapID)
{
continue;
}
int startID = resultSubset.Count;
resultSubset.Add(aSubsets[i]);
List <int> subIndices = new List <int>();
for (int t = 0; t < aSubsets[i].mIndices.Count; t += 1)
{
subIndices.Add(startID + aSubsets[i].mIndices[t]);
}
indices.Add(subIndices);
}
// cap it off if we used that category of data at all!
resultSubset.CheckArrays();
result.vertices = resultSubset.mPoints.ToArray();
result.normals = resultSubset.mNormals.ToArray();
result.uv = resultSubset.mUVs.ToArray();
result.tangents = resultSubset.mTangents.ToArray();
result.colors = resultSubset.mColors.ToArray();
#if UNITY_5
result.uv2 = resultSubset.mLightUVs.ToArray();
#else
result.uv1 = resultSubset.mLightUVs.ToArray();
#endif
result.subMeshCount = aSubsets.Count;
for (int i = 0; i < indices.Count; ++i)
{
result.SetIndices(indices[i].ToArray(), MeshTopology.Triangles, i);
}
result.RecalculateBounds();
return(result);
}
