public static void FlattenHierarchy(this IINode node)
{
////todo: replace this with C#
string convertToEditablePoly = $"ConvertTo (maxOps.getNodeByHandle {node.Handle}) Editable_Poly";
ScriptsUtilities.ExecuteMaxScriptCommand(convertToEditablePoly);
IPolyObject polyObject = node.GetPolyObjectFromNode();
IEPoly flattenEPoly = (IEPoly)polyObject.GetInterface(Loader.EditablePoly);
IINodeTab toflatten = Loader.Global.NodeTab.Create();
foreach (IINode n in node.NodeTree())
{
toflatten.AppendNode(n, false, 1);
}
flattenEPoly.EpfnMultiAttach(toflatten, node, Loader.Core.Time);
}
public static IINode FlattenHierarchy(this IINode node)
{
IILayer nodeLayer = LayerUtilities.GetNodeLayer(node);
if (nodeLayer != null)
{
Loader.Core.LayerManager.SetCurrentLayer(nodeLayer.Name);
}
List <IINode> children = node.NodeTree().ToList();
List <IINode> nonMeshChildren = children.Where(x => !x.IsMesh()).ToList();
List <IINode> meshChildren = children.Where(x => x.IsMesh()).ToList();
IClass_ID cid = Loader.Global.Class_ID.Create((uint)BuiltInClassIDA.SPHERE_CLASS_ID, 0);
object obj = Loader.Core.CreateInstance(SClass_ID.Geomobject, cid as IClass_ID);
IINode result = Loader.Core.CreateObjectNode((IObject)obj);
result.Name = node.Name;
result.SetNodeTM(Loader.Core.Time, node.GetNodeTM(Loader.Core.Time, Forever));
node.ParentNode.AttachChild(result, true);
string convertToEditablePoly = $"ConvertTo (maxOps.getNodeByHandle {result.Handle}) Editable_Poly";
ScriptsUtilities.ExecuteMaxScriptCommand(convertToEditablePoly);
IPolyObject polyObject = result.GetPolyObjectFromNode();
IEPoly nodeEPoly = (IEPoly)polyObject.GetInterface(Loader.EditablePoly);
List <IMtl> newMultiMat = new List <IMtl>();
foreach (IINode n in meshChildren)
{
ITriObject triObject = n.GetTriObjectFromNode();
IMesh mesh = triObject.Mesh;
if (n.Mtl.IsMultiMtl)
{
Dictionary <IMtl, List <IFace> > matIDtoFacesMap = new Dictionary <IMtl, List <IFace> >();
////List<int> matIDsInUse = new List<int>();
foreach (IFace face in mesh.Faces)
{
int faceMatID = face.MatID;
IMtl mat = n.Mtl.GetSubMtl(faceMatID);
if (!matIDtoFacesMap.ContainsKey(mat))
{
List <IFace> facesOfMat = new List <IFace>();
matIDtoFacesMap.Add(mat, facesOfMat);
}
matIDtoFacesMap[mat].Add(face);
}
foreach (KeyValuePair <IMtl, List <IFace> > matToFaceKeyValue in matIDtoFacesMap)
{
IMtl faceMat = matToFaceKeyValue.Key; //get the material from the list of the multimaterial
if (!newMultiMat.Contains(faceMat))
{
newMultiMat.Add(faceMat);
}
ushort newId = (ushort)(newMultiMat.IndexOf(faceMat));
foreach (IFace face in matToFaceKeyValue.Value)
{
face.MatID = newId;
}
}
}
else
{
//IMtl currentMat = n.Mtl;
//int matID = newMultiMat.IndexOf(currentMat);
//if (matID == -1)
//{
// newMultiMat.Add(currentMat);
// ushort newId = (ushort)newMultiMat.Count;
// for (int fID = 0; fID < mesh.NumFaces; fID++)
// {
// mesh.SetFaceMtlIndex(fID, (ushort)newId);
// }
//}
//else
//{
// for (int fID = 0; fID < mesh.NumFaces; fID++)
// {
// mesh.SetFaceMtlIndex(fID, (ushort)matID);
// }
//}
}
triObject.Mesh = mesh;
n.ObjectRef = triObject;
//bool undo = false;
//nodeEPoly.EpfnAttach(n, ref undo,result, Loader.Core.Time);
}
IClass_ID matCid = Loader.Global.Class_ID.Create((uint)BuiltInClassIDA.MULTI_MATERIAL_CLASS_ID, 0);
IMtl finalMat = (IMtl)Loader.Core.CreateInstance(SClass_ID.Material, matCid);
for (int i = 0; i < newMultiMat.Count; i++)
{
finalMat.SetSubMtl(i, newMultiMat[i]);
}
finalMat.Name = "final mat";
result.Mtl = finalMat;
foreach (IINode n in nonMeshChildren)
{
result.AttachChild(n, true);
}
Loader.Core.DeleteNode(node, false, false);
return(result);
}