// [RMS] This doesn't work because I did something stupid when
// making unwrap meshes. The set of triangles aren't the same. argh.
public static DMesh3 ConvertUnwrapToUVs(RemoteControl rc, out DenseMeshUVSet UVSet, string mainName = "main")
{
int mainID = rc.FindObjectByName(mainName);
rc.CompactMesh(mainID);
DMesh3 mainMesh = ReadMeshFromMM(rc, mainID);
Debug.Assert(mainMesh.IsCompact);
List <int> all = rc.ListObjects();
List <int> unwrapIDs = new List <int>();
foreach (int id in all)
{
string sName = rc.GetObjectName(id);
if (sName.StartsWith("unwrap", StringComparison.OrdinalIgnoreCase))
{
unwrapIDs.Add(id);
}
}
int[] AllGroups = FaceGroupUtil.FindAllGroups(mainMesh).ToArray();
Dictionary <int, DMesh3> Unwraps = new Dictionary <int, DMesh3>();
foreach (int id in unwrapIDs)
{
DMesh3 mesh = ReadMeshFromMM(rc, id);
HashSet <int> subGroups = FaceGroupUtil.FindAllGroups(mesh);
Debug.Assert(subGroups.Count == 1);
int gid = subGroups.ToArray()[0];
Unwraps[gid] = mesh;
}
UVSet = new DenseMeshUVSet();
UVSet.TriangleUVs.resize(mainMesh.TriangleCount);
Dictionary <Index2i, int> UVSetMap = new Dictionary <Index2i, int>();
Dictionary <int, int> GroupCounters = new Dictionary <int, int>();
for (int i = 0; i < AllGroups.Length; ++i)
{
GroupCounters[AllGroups[i]] = 0;
}
for (int ti = 0; ti < mainMesh.TriangleCount; ++ti)
{
Index3i main_tri = mainMesh.GetTriangle(ti);
int gid = mainMesh.GetTriangleGroup(ti);
int sub_tid = GroupCounters[gid];
GroupCounters[gid]++;
DMesh3 SubMesh = Unwraps[gid];
Index3i sub_tri = SubMesh.GetTriangle(sub_tid);
for (int j = 0; j < 3; ++j)
{
int sub_vid = sub_tri[j];
Index2i key = new Index2i(gid, sub_vid);
int uvset_idx;
if (UVSetMap.TryGetValue(key, out uvset_idx) == false)
{
Vector3d v = SubMesh.GetVertex(sub_vid);
Vector2f uv = new Vector2f((float)v.x, (float)v.z);
uvset_idx = UVSet.AppendUV(uv);
UVSetMap[key] = uvset_idx;
}
sub_tri[j] = uvset_idx;
}
UVSet.TriangleUVs[ti] = sub_tri;
}
return(mainMesh);
}