Beispiel #1
0
        public override Asset Import(string path)
        {
            FBX fbx = FBX.Load(path);
            Model model = new Model();
            Dictionary<long, object> components = new Dictionary<long, object>();
            Dictionary<long, Matrix4> transforms = new Dictionary<long, Matrix4>();

            Dictionary<long, string> triangulationErrors = new Dictionary<long, string>();

            string name = Path.GetFileNameWithoutExtension(path);

            if (fbx == null)
            {
                SceneManager.Current.RaiseError(string.Format("File \"{0}\" could not be opened.  Please ensure this is a binary FBX file.", name));
                return null;
            }

            var objects = fbx.Elements.Find(e => e.ID == "Objects");

            RotationOrder order;
            var worldMatrix = createTransformFor(fbx.Elements.Find(e => e.ID == "GlobalSettings").Children[1], out order);

            foreach (var material in objects.Children.Where(e => e.ID == "Material"))
            {
                string matName = material.Properties[1].Value.ToString();
                matName = matName.Substring(0, matName.IndexOf("::"));
                var m = new Material { Name = matName };
                components.Add((long)material.Properties[0].Value, m);

                Console.WriteLine("Added material \"{0}\" ({1})", matName, material.Properties[0].Value);
            }

            var textures = objects.Children.Where(e => e.ID == "Texture");
            foreach (var texture in textures)
            {
                Texture t = null;
                string fullFile = texture.Children.Find(e => e.ID == "FileName").Properties[0].Value.ToString();

                if (fullFile.IndexOf('.') == -1) { continue; }

                string file = Path.GetFileName(fullFile);

                switch (Path.GetExtension(file))
                {
                    case ".bmp":
                        t = SceneManager.Current.Content.Load<Texture, BMPImporter>(Path.GetFileNameWithoutExtension(file));
                        break;

                    case ".png":
                        t = SceneManager.Current.Content.Load<Texture, PNGImporter>(Path.GetFileNameWithoutExtension(file));
                        break;

                    case ".tif":
                        t = SceneManager.Current.Content.Load<Texture, TIFImporter>(Path.GetFileNameWithoutExtension(file));
                        break;

                    case ".tga":
                        t = SceneManager.Current.Content.Load<Texture, TGAImporter>(Path.GetFileNameWithoutExtension(file));
                        break;

                    default:
                        t = new Texture();
                        break;
                }

                if (!components.ContainsKey((long)texture.Properties[0].Value))
                {
                    components.Add((long)texture.Properties[0].Value, t);

                    Console.WriteLine("Added texture \"{0}\" ({1})", file, texture.Properties[0].Value);
                }
            }

            foreach (var element in objects.Children.Where(e => e.ID == "Model"))
            {
                string modelName = element.Properties[1].Value.ToString();
                modelName = modelName.Substring(0, modelName.IndexOf("::"));

                components.Add((long)element.Properties[0].Value, new ModelMesh { Name = modelName, Tag = (long)element.Properties[0].Value });

                Console.WriteLine("Added model \"{0}\" ({1})", modelName, element.Properties[0].Value);

                var properties = element.Children.Find(c => c.ID == "Properties70");
                var m = Matrix4.Identity;
                bool bRotationActive = false;

                var lclTranslation = OpenTK.Vector3.Zero;
                var lclRotation = Quaternion.Identity;
                var preRotation = Quaternion.Identity;
                var postRotation = Quaternion.Identity;
                var rotationPivot = OpenTK.Vector3.Zero;
                var rotationOffset = OpenTK.Vector3.Zero;
                var lclScaling = OpenTK.Vector3.One;
                var scalingPivot = OpenTK.Vector3.Zero;
                var scalingOffset = OpenTK.Vector3.Zero;

                var geoPosition = OpenTK.Vector3.Zero;
                var geoRotation = Quaternion.Identity;
                var geoScale = OpenTK.Vector3.One;

                FBXElem property;

                property = properties.Children.GetProperty("RotationActive");
                if (property != null) { bRotationActive = ((int)property.Properties[4].Value == 1); }

                property = properties.Children.GetProperty("ScalingPivot");
                if (property != null)
                {
                    scalingPivot = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("Lcl Scaling");
                if (property != null)
                {
                    lclScaling = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("ScalingOffset");
                if (property != null)
                {
                    scalingOffset = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("RotationPivot");
                if (property != null)
                {
                    rotationPivot = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("PostRotation");
                if (property != null)
                {
                    postRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                    );
                }

                property = properties.Children.GetProperty("Lcl Rotation");
                if (property != null)
                {
                    lclRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                    );
                }

                property = properties.Children.GetProperty("PreRotation");
                if (property != null)
                {
                    preRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                    );
                }

                property = properties.Children.GetProperty("RotationOffset");
                if (property != null)
                {
                    rotationOffset = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("Lcl Translation");
                if (property != null)
                {
                    lclTranslation = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("GeometricTranslation");
                if (property != null)
                {
                    geoPosition = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                property = properties.Children.GetProperty("GeometricRotation");
                if (property != null)
                {
                    geoRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                    );
                }

                property = properties.Children.GetProperty("GeometricScaling");
                if (property != null)
                {
                    geoScale = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                    );
                }

                m =
                    Matrix4.CreateTranslation(scalingPivot).Inverted() *
                    Matrix4.CreateScale(lclScaling) *
                    Matrix4.CreateTranslation(scalingPivot) *
                    Matrix4.CreateTranslation(scalingOffset) *
                    Matrix4.CreateTranslation(rotationPivot).Inverted() *
                    Matrix4.CreateFromQuaternion(postRotation) *
                    Matrix4.CreateFromQuaternion(lclRotation) *
                    Matrix4.CreateFromQuaternion(preRotation) *
                    Matrix4.CreateTranslation(rotationPivot) *
                    Matrix4.CreateTranslation(rotationOffset) *
                    Matrix4.CreateTranslation(lclTranslation);

                if (m != Matrix4.Identity) { transforms.Add((long)element.Properties[0].Value, m); }
            }

            foreach (var element in objects.Children.Where(e => e.ID == "Geometry"))
            {
                bool bUVs = true;
                bool bNorms = true;
                bool bColours = true;
                bool bUseIndexNorm = false;

                bool bNeedsTriangulating = false;

                string geometryName = element.Properties[1].Value.ToString();
                geometryName = geometryName.Substring(0, geometryName.IndexOf("::"));

                var verts = new List<OpenTK.Vector3>();
                var norms = new List<OpenTK.Vector3>();
                var uvs = new List<OpenTK.Vector2>();
                var colours = new List<OpenTK.Graphics.Color4>();

                var vertParts = (double[])element.Children.Find(e => e.ID == "Vertices").Properties[0].Value;
                for (int i = 0; i < vertParts.Length; i += 3)
                {
                    verts.Add(new OpenTK.Vector3((float)vertParts[i + 0], (float)vertParts[i + 1], (float)vertParts[i + 2]));
                }

                SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Vertices", element.Properties[1].Value));

                var normElem = element.Children.Find(e => e.ID == "LayerElementNormal");
                if (normElem != null)
                {
                    var normParts = (double[])normElem.Children.Find(e => e.ID == "Normals").Properties[0].Value;
                    for (int i = 0; i < normParts.Length; i += 3)
                    {
                        norms.Add(new OpenTK.Vector3((float)normParts[i + 0], (float)normParts[i + 1], (float)normParts[i + 2]));
                    }

                    bUseIndexNorm = (normElem.Children.Find(e => e.ID == "MappingInformationType").Properties[0].Value.ToString() == "ByVertice");

                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Normals", element.Properties[1].Value));
                }
                else
                {
                    bNorms = false;
                }

                var colourElem = element.Children.Find(e => e.ID == "LayerElementColor");
                if (colourElem != null)
                {
                    var colourParts = (double[])colourElem.Children.Find(e => e.ID == "Colors").Properties[0].Value;

                    var colourReferenceType = colourElem.Children.Find(e => e.ID == "ReferenceInformationType");

                    switch (colourReferenceType.Properties[0].Value.ToString())
                    {
                        case "IndexToDirect":
                            var colourIndicies = (int[])colourElem.Children.Find(e => e.ID == "ColorIndex").Properties[0].Value;
                            for (int i = 0; i < colourIndicies.Length; i++)
                            {
                                int offset = colourIndicies[i] * 4;
                                colours.Add(new OpenTK.Graphics.Color4((float)colourParts[offset + 0], (float)colourParts[offset + 1], (float)colourParts[offset + 2], (float)colourParts[offset + 3]));
                            }
                            break;

                        case "Direct":
                            bColours = false;
                            break;

                        default:
                            throw new NotImplementedException("Unsupported Colour Reference Type: " + colourReferenceType.Properties[0].Value.ToString());
                    }

                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Colours", element.Properties[1].Value));
                }
                else
                {
                    bColours = false;
                }

                var uvElem = element.Children.Find(e => e.ID == "LayerElementUV");
                if (uvElem != null)
                {
                    var uvParts = (double[])uvElem.Children.Find(e => e.ID == "UV").Properties[0].Value;

                    var uvReferenceType = uvElem.Children.Find(e => e.ID == "ReferenceInformationType");
                    if (uvReferenceType.Properties[0].Value.ToString() == "IndexToDirect")
                    {
                        var luvs = new List<OpenTK.Vector2>();
                        for (int i = 0; i < uvParts.Length; i += 2) { luvs.Add(new OpenTK.Vector2((float)uvParts[i + 0], 1 - (float)uvParts[i + 1])); }

                        var uvindicies = (int[])uvElem.Children.Find(e => e.ID == "UVIndex").Properties[0].Value;
                        for (int i = 0; i < uvindicies.Length; i++)
                        {
                            if (uvindicies[i] == -1)
                            {
                                uvs.Add(OpenTK.Vector2.Zero);
                            }
                            else
                            {
                                uvs.Add(luvs[uvindicies[i]]);
                            }
                        }
                    }
                    else
                    {
                        for (int i = 0; i < uvParts.Length; i += 2) { uvs.Add(new OpenTK.Vector2((float)uvParts[i + 0], (float)uvParts[i + 1])); }
                    }

                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->UVs", element.Properties[1].Value));
                }
                else
                {
                    bUVs = false;
                }

                var indicies = (int[])element.Children.Find(e => e.ID == "PolygonVertexIndex").Properties[0].Value;
                var faces = new List<FBXFace>();
                var face = new FBXFace();
                var j = 0;

                for (int i = 0; i < indicies.Length; i++)
                {
                    bool bFace = false;
                    int index = indicies[i];

                    if (index < 0)
                    {
                        bFace = true;
                        index = (index * -1) - 1;
                    }

                    j++;
                    face.AddVertex(verts[index], (bNorms ? norms[(bUseIndexNorm ? index : i)] : OpenTK.Vector3.Zero), (bUVs ? uvs[i] : OpenTK.Vector2.Zero), (bColours ? colours[i] : OpenTK.Graphics.Color4.White));

                    if (bFace)
                    {
                        if (j > 3)
                        {
                            triangulationErrors.Add((long)element.Properties[0].Value, geometryName);
                            bNeedsTriangulating = true;
                            break;
                        }

                        faces.Add(face);
                        face = new FBXFace();
                        j = 0;
                    }
                }

                var parts = new List<ModelMeshPart>();

                if (!bNeedsTriangulating)
                {
                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Faces", element.Properties[1].Value));

                    var elemMaterial = element.Children.Find(e => e.ID == "LayerElementMaterial");
                    if (elemMaterial != null)
                    {
                        var faceMaterials = (int[])elemMaterial.Children.Find(e => e.ID == "Materials").Properties[0].Value;
                        for (int i = 0; i < faceMaterials.Length; i++)
                        {
                            faces[i].MaterialID = faceMaterials[i];
                        }

                        SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Materials", element.Properties[1].Value));
                    }

                    var materialGroups = faces.GroupBy(f => f.MaterialID);

                    int processedFaceCount = 0,
                        processedGroupCount = 0;

                    foreach (var materialGroup in materialGroups)
                    {
                        var smoothingGroups = materialGroup.GroupBy(f => f.SmoothingGroup);

                        foreach (var smoothingGroup in smoothingGroups)
                        {
                            var meshpart = new ModelMeshPart { PrimitiveType = OpenTK.Graphics.OpenGL.PrimitiveType.Triangles };
                            processedFaceCount = 0;

                            foreach (var groupface in smoothingGroup)
                            {
                                foreach (var vert in groupface.Vertices)
                                {
                                    meshpart.AddVertex(vert.Position, vert.Normal, vert.UV, vert.Colour);
                                }

                                processedFaceCount++;

                                if (processedFaceCount % 250 == 0) { SceneManager.Current.UpdateProgress(string.Format("Processed {0}->MeshPart[{1}]->Face[{2}]", element.Properties[1].Value, processedGroupCount, processedFaceCount)); }
                            }

                            meshpart.Key = materialGroup.Key;

                            parts.Add(meshpart);
                            SceneManager.Current.UpdateProgress(string.Format("Processed {0}->MeshPart", element.Properties[1].Value));

                            processedGroupCount++;
                        }
                    }
                }

                components.Add((long)element.Properties[0].Value, parts);
                SceneManager.Current.UpdateProgress(string.Format("Processed {0}", element.Properties[1].Value));
            }

            string[] connectionOrder = new string[] { "System.Collections.Generic.List`1[Flummery.ModelMeshPart]", "Flummery.Texture", "Flummery.Material", "Flummery.ModelMesh" };
            var connections = fbx.Elements.Find(e => e.ID == "Connections");

            HashSet<long> loaded = new HashSet<long>();

            foreach (var connectionType in connectionOrder)
            {
                var connectionsOfType = connections.Children.Where(c => components.ContainsKey((long)c.Properties[1].Value) && components[(long)c.Properties[1].Value].GetType().ToString() == connectionType);

                foreach (var connection in connectionsOfType)
                {
                    long keyA = (long)connection.Properties[1].Value;
                    long keyB = (long)connection.Properties[2].Value;

                    Console.WriteLine("{0} is connected to {1} :: {2}", keyA, keyB, connectionType);

                    switch (connectionType)
                    {
                        case "Flummery.ModelMesh":
                            int boneID;

                            if (keyB == 0)
                            {
                                boneID = model.AddMesh((ModelMesh)components[keyA]);
                                model.SetName(((ModelMesh)components[keyA]).Name, boneID);
                                if (transforms.ContainsKey(keyA)) { model.SetTransform(transforms[keyA], boneID); }
                            }
                            else
                            {
                                var parent = model.FindMesh(keyB);
                                if (parent != null)
                                {
                                    boneID = model.AddMesh((ModelMesh)components[keyA], parent.Parent.Index);
                                    model.SetName(((ModelMesh)components[keyA]).Name, boneID);
                                    if (transforms.ContainsKey(keyA)) { model.SetTransform(transforms[keyA], boneID); }
                                }
                                else
                                {
                                    if (!components.ContainsKey(keyB))
                                    {
                                        Console.WriteLine("Components doesn't contain {0}", keyB);
                                    }
                                    else
                                    {
                                        Console.WriteLine("Couldn't find {0}", ((ModelMesh)components[keyB]).Name);
                                    }
                                }
                            }
                            break;

                        case "Flummery.Texture":
                            if (components.ContainsKey(keyB) && components[keyB].GetType().ToString() == "Flummery.Material")
                            {
                                if (loaded.Add(keyB))
                                {
                                    ((Material)components[keyB]).Texture = (Texture)components[keyA];
                                    SceneManager.Current.Add((Material)components[keyB]);
                                }
                            }
                            else
                            {
                                Console.WriteLine("{0} is of unknown type {1}", keyA, components[keyA].GetType().ToString());
                                Console.WriteLine("{0} is of unknown type {1}", keyB, components[keyB].GetType().ToString());
                            }
                            break;

                        case "System.Collections.Generic.List`1[Flummery.ModelMeshPart]":
                            if (components.ContainsKey(keyB) && components[keyB].GetType().ToString() == "Flummery.ModelMesh")
                            {
                                if (triangulationErrors.ContainsKey(keyA))
                                {
                                    triangulationErrors[keyA] += " (geometry of " + ((ModelMesh)components[keyB]).Name + ")";
                                }

                                foreach (var part in (List<ModelMeshPart>)components[keyA])
                                {
                                    ((ModelMesh)components[keyB]).AddModelMeshPart(part);
                                }
                            }
                            break;

                        case "Flummery.Material":
                            if (components.ContainsKey(keyB) && components[keyB].GetType().ToString() == "Flummery.ModelMesh")
                            {
                                var materialLookup = connections.Children.Where(c => (long)c.Properties[2].Value == keyB).ToList();
                                for (int i = materialLookup.Count - 1; i > -1; i--) { if (!connectionsOfType.Any(c => (long)c.Properties[1].Value == (long)materialLookup[i].Properties[1].Value)) { materialLookup.RemoveAt(i); } }

                                foreach (var part in ((ModelMesh)components[keyB]).MeshParts)
                                {
                                    if ((long)materialLookup[(int)part.Key].Properties[1].Value == keyA)
                                    {
                                        part.Material = (Material)components[keyA];
                                        //SceneManager.Current.Add(part.Material);
                                    }
                                }
                            }
                            break;

                        default:
                            Console.WriteLine("{0} is of unknown type {1}", keyA, components[keyA].GetType().ToString());
                            if (components.ContainsKey(keyB)) { Console.WriteLine("{0} is of unknown type {1}", keyB, components[keyB].GetType().ToString()); }
                            Console.WriteLine("===");
                            break;
                    }
                }
            }

            if (triangulationErrors.Count > 0)
            {
                SceneManager.Current.UpdateProgress(string.Format("Failed to load {0}", name));

                string error = string.Format("File \"{0}\" has part{1} that need been triangulating!  Please triangulate the following:", name, (triangulationErrors.Count > 1 ? "s" : ""));
                foreach (var kvp in triangulationErrors)
                {
                    error += "\r\n" + kvp.Value;
                }

                SceneManager.Current.RaiseError(error);

                return null;
            }
            else
            {
                SceneManager.Current.UpdateProgress(string.Format("Loaded {0}", name));

                model.Santise();

                if (worldMatrix != Matrix4.Identity) { ModelManipulator.Freeze(model, worldMatrix); }
                ModelManipulator.FlipAxis(model.Root.Mesh, Axis.X, true);

                return model;
            }
        }
Beispiel #2
0
        public override Asset Import(string path)
        {
            FBX   fbx   = FBX.Load(path);
            Model model = new Model();
            Dictionary <long, object>  components = new Dictionary <long, object>();
            Dictionary <long, Matrix4> transforms = new Dictionary <long, Matrix4>();

            Dictionary <long, string> triangulationErrors = new Dictionary <long, string>();

            string name = Path.GetFileNameWithoutExtension(path);

            if (fbx == null)
            {
                SceneManager.Current.RaiseError(string.Format("File \"{0}\" could not be opened.  Please ensure this is a binary FBX file.", name));
                return(null);
            }

            var objects = fbx.Elements.Find(e => e.ID == "Objects");

            RotationOrder order;
            var           worldMatrix = createTransformFor(fbx.Elements.Find(e => e.ID == "GlobalSettings").Children[1], out order);

            foreach (var material in objects.Children.Where(e => e.ID == "Material"))
            {
                string matName = material.Properties[1].Value.ToString();
                matName = matName.Substring(0, matName.IndexOf("::"));
                var m = new Material {
                    Name = matName
                };
                components.Add((long)material.Properties[0].Value, m);

                Console.WriteLine("Added material \"{0}\" ({1})", matName, material.Properties[0].Value);
            }

            var textures = objects.Children.Where(e => e.ID == "Texture");

            foreach (var texture in textures)
            {
                Texture t        = null;
                string  fullFile = texture.Children.Find(e => e.ID == "FileName").Properties[0].Value.ToString();

                if (fullFile.IndexOf('.') == -1)
                {
                    continue;
                }

                string file = Path.GetFileName(fullFile);

                switch (Path.GetExtension(file))
                {
                case ".bmp":
                    t = SceneManager.Current.Content.Load <Texture, BMPImporter>(Path.GetFileNameWithoutExtension(file));
                    break;

                case ".png":
                    t = SceneManager.Current.Content.Load <Texture, PNGImporter>(Path.GetFileNameWithoutExtension(file));
                    break;

                case ".tif":
                    t = SceneManager.Current.Content.Load <Texture, TIFImporter>(Path.GetFileNameWithoutExtension(file));
                    break;

                case ".tga":
                    t = SceneManager.Current.Content.Load <Texture, TGAImporter>(Path.GetFileNameWithoutExtension(file));
                    break;

                default:
                    t = new Texture();
                    break;
                }

                if (!components.ContainsKey((long)texture.Properties[0].Value))
                {
                    components.Add((long)texture.Properties[0].Value, t);

                    Console.WriteLine("Added texture \"{0}\" ({1})", file, texture.Properties[0].Value);
                }
            }

            foreach (var element in objects.Children.Where(e => e.ID == "Model"))
            {
                string modelName = element.Properties[1].Value.ToString();
                modelName = modelName.Substring(0, modelName.IndexOf("::"));

                components.Add((long)element.Properties[0].Value, new ModelMesh {
                    Name = modelName, Tag = (long)element.Properties[0].Value
                });

                Console.WriteLine("Added model \"{0}\" ({1})", modelName, element.Properties[0].Value);

                var  properties      = element.Children.Find(c => c.ID == "Properties70");
                var  m               = Matrix4.Identity;
                bool bRotationActive = false;

                var lclTranslation = OpenTK.Vector3.Zero;
                var lclRotation    = Quaternion.Identity;
                var preRotation    = Quaternion.Identity;
                var postRotation   = Quaternion.Identity;
                var rotationPivot  = OpenTK.Vector3.Zero;
                var rotationOffset = OpenTK.Vector3.Zero;
                var lclScaling     = OpenTK.Vector3.One;
                var scalingPivot   = OpenTK.Vector3.Zero;
                var scalingOffset  = OpenTK.Vector3.Zero;

                var geoPosition = OpenTK.Vector3.Zero;
                var geoRotation = Quaternion.Identity;
                var geoScale    = OpenTK.Vector3.One;

                FBXElem property;

                property = properties.Children.GetProperty("RotationActive");
                if (property != null)
                {
                    bRotationActive = ((int)property.Properties[4].Value == 1);
                }

                property = properties.Children.GetProperty("ScalingPivot");
                if (property != null)
                {
                    scalingPivot = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("Lcl Scaling");
                if (property != null)
                {
                    lclScaling = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("ScalingOffset");
                if (property != null)
                {
                    scalingOffset = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("RotationPivot");
                if (property != null)
                {
                    rotationPivot = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("PostRotation");
                if (property != null)
                {
                    postRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                        );
                }

                property = properties.Children.GetProperty("Lcl Rotation");
                if (property != null)
                {
                    lclRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                        );
                }

                property = properties.Children.GetProperty("PreRotation");
                if (property != null)
                {
                    preRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                        );
                }

                property = properties.Children.GetProperty("RotationOffset");
                if (property != null)
                {
                    rotationOffset = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("Lcl Translation");
                if (property != null)
                {
                    lclTranslation = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("GeometricTranslation");
                if (property != null)
                {
                    geoPosition = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                property = properties.Children.GetProperty("GeometricRotation");
                if (property != null)
                {
                    geoRotation = MakeQuaternion(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value),
                        order
                        );
                }

                property = properties.Children.GetProperty("GeometricScaling");
                if (property != null)
                {
                    geoScale = new OpenTK.Vector3(
                        Convert.ToSingle(property.Properties[4].Value),
                        Convert.ToSingle(property.Properties[5].Value),
                        Convert.ToSingle(property.Properties[6].Value)
                        );
                }

                m =
                    Matrix4.CreateTranslation(scalingPivot).Inverted() *
                    Matrix4.CreateScale(lclScaling) *
                    Matrix4.CreateTranslation(scalingPivot) *
                    Matrix4.CreateTranslation(scalingOffset) *
                    Matrix4.CreateTranslation(rotationPivot).Inverted() *
                    Matrix4.CreateFromQuaternion(postRotation) *
                    Matrix4.CreateFromQuaternion(lclRotation) *
                    Matrix4.CreateFromQuaternion(preRotation) *
                    Matrix4.CreateTranslation(rotationPivot) *
                    Matrix4.CreateTranslation(rotationOffset) *
                    Matrix4.CreateTranslation(lclTranslation);

                if (m != Matrix4.Identity)
                {
                    transforms.Add((long)element.Properties[0].Value, m);
                }
            }

            foreach (var element in objects.Children.Where(e => e.ID == "Geometry"))
            {
                bool bUVs          = true;
                bool bNorms        = true;
                bool bColours      = true;
                bool bUseIndexNorm = false;

                bool bNeedsTriangulating = false;

                string geometryName = element.Properties[1].Value.ToString();
                geometryName = geometryName.Substring(0, geometryName.IndexOf("::"));

                var verts   = new List <OpenTK.Vector3>();
                var norms   = new List <OpenTK.Vector3>();
                var uvs     = new List <OpenTK.Vector2>();
                var colours = new List <OpenTK.Graphics.Color4>();

                var vertParts = (double[])element.Children.Find(e => e.ID == "Vertices").Properties[0].Value;
                for (int i = 0; i < vertParts.Length; i += 3)
                {
                    verts.Add(new OpenTK.Vector3((float)vertParts[i + 0], (float)vertParts[i + 1], (float)vertParts[i + 2]));
                }

                SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Vertices", element.Properties[1].Value));

                var normElem = element.Children.Find(e => e.ID == "LayerElementNormal");
                if (normElem != null)
                {
                    var normParts = (double[])normElem.Children.Find(e => e.ID == "Normals").Properties[0].Value;
                    for (int i = 0; i < normParts.Length; i += 3)
                    {
                        norms.Add(new OpenTK.Vector3((float)normParts[i + 0], (float)normParts[i + 1], (float)normParts[i + 2]));
                    }

                    bUseIndexNorm = (normElem.Children.Find(e => e.ID == "MappingInformationType").Properties[0].Value.ToString() == "ByVertice");

                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Normals", element.Properties[1].Value));
                }
                else
                {
                    bNorms = false;
                }

                var colourElem = element.Children.Find(e => e.ID == "LayerElementColor");
                if (colourElem != null)
                {
                    var colourParts = (double[])colourElem.Children.Find(e => e.ID == "Colors").Properties[0].Value;

                    var colourReferenceType = colourElem.Children.Find(e => e.ID == "ReferenceInformationType");

                    switch (colourReferenceType.Properties[0].Value.ToString())
                    {
                    case "IndexToDirect":
                        var colourIndicies = (int[])colourElem.Children.Find(e => e.ID == "ColorIndex").Properties[0].Value;
                        for (int i = 0; i < colourIndicies.Length; i++)
                        {
                            int offset = colourIndicies[i] * 4;
                            colours.Add(new OpenTK.Graphics.Color4((float)colourParts[offset + 0], (float)colourParts[offset + 1], (float)colourParts[offset + 2], (float)colourParts[offset + 3]));
                        }
                        break;

                    case "Direct":
                        bColours = false;
                        break;

                    default:
                        throw new NotImplementedException("Unsupported Colour Reference Type: " + colourReferenceType.Properties[0].Value.ToString());
                    }

                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Colours", element.Properties[1].Value));
                }
                else
                {
                    bColours = false;
                }

                var uvElem = element.Children.Find(e => e.ID == "LayerElementUV");
                if (uvElem != null)
                {
                    var uvParts = (double[])uvElem.Children.Find(e => e.ID == "UV").Properties[0].Value;

                    var uvReferenceType = uvElem.Children.Find(e => e.ID == "ReferenceInformationType");
                    if (uvReferenceType.Properties[0].Value.ToString() == "IndexToDirect")
                    {
                        var luvs = new List <OpenTK.Vector2>();
                        for (int i = 0; i < uvParts.Length; i += 2)
                        {
                            luvs.Add(new OpenTK.Vector2((float)uvParts[i + 0], 1 - (float)uvParts[i + 1]));
                        }

                        var uvindicies = (int[])uvElem.Children.Find(e => e.ID == "UVIndex").Properties[0].Value;
                        for (int i = 0; i < uvindicies.Length; i++)
                        {
                            if (uvindicies[i] == -1)
                            {
                                uvs.Add(OpenTK.Vector2.Zero);
                            }
                            else
                            {
                                uvs.Add(luvs[uvindicies[i]]);
                            }
                        }
                    }
                    else
                    {
                        for (int i = 0; i < uvParts.Length; i += 2)
                        {
                            uvs.Add(new OpenTK.Vector2((float)uvParts[i + 0], (float)uvParts[i + 1]));
                        }
                    }

                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->UVs", element.Properties[1].Value));
                }
                else
                {
                    bUVs = false;
                }

                var indicies = (int[])element.Children.Find(e => e.ID == "PolygonVertexIndex").Properties[0].Value;
                var faces    = new List <FBXFace>();
                var face     = new FBXFace();
                var j        = 0;

                for (int i = 0; i < indicies.Length; i++)
                {
                    bool bFace = false;
                    int  index = indicies[i];

                    if (index < 0)
                    {
                        bFace = true;
                        index = (index * -1) - 1;
                    }

                    j++;
                    face.AddVertex(verts[index], (bNorms ? norms[(bUseIndexNorm ? index : i)] : OpenTK.Vector3.Zero), (bUVs ? uvs[i] : OpenTK.Vector2.Zero), (bColours ? colours[i] : OpenTK.Graphics.Color4.White));

                    if (bFace)
                    {
                        if (j > 3)
                        {
                            triangulationErrors.Add((long)element.Properties[0].Value, geometryName);
                            bNeedsTriangulating = true;
                            break;
                        }

                        faces.Add(face);
                        face = new FBXFace();
                        j    = 0;
                    }
                }

                var parts = new List <ModelMeshPart>();

                if (!bNeedsTriangulating)
                {
                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Faces", element.Properties[1].Value));

                    var elemMaterial = element.Children.Find(e => e.ID == "LayerElementMaterial");
                    if (elemMaterial != null)
                    {
                        var faceMaterials = (int[])elemMaterial.Children.Find(e => e.ID == "Materials").Properties[0].Value;
                        for (int i = 0; i < faceMaterials.Length; i++)
                        {
                            faces[i].MaterialID = faceMaterials[i];
                        }

                        SceneManager.Current.UpdateProgress(string.Format("Processed {0}->Materials", element.Properties[1].Value));
                    }


                    var materialGroups = faces.GroupBy(f => f.MaterialID);

                    int processedFaceCount  = 0,
                        processedGroupCount = 0;

                    foreach (var materialGroup in materialGroups)
                    {
                        var smoothingGroups = materialGroup.GroupBy(f => f.SmoothingGroup);

                        foreach (var smoothingGroup in smoothingGroups)
                        {
                            var meshpart = new ModelMeshPart {
                                PrimitiveType = OpenTK.Graphics.OpenGL.PrimitiveType.Triangles
                            };
                            processedFaceCount = 0;

                            foreach (var groupface in smoothingGroup)
                            {
                                foreach (var vert in groupface.Vertices)
                                {
                                    meshpart.AddVertex(vert.Position, vert.Normal, vert.UV, vert.Colour);
                                }

                                processedFaceCount++;

                                if (processedFaceCount % 250 == 0)
                                {
                                    SceneManager.Current.UpdateProgress(string.Format("Processed {0}->MeshPart[{1}]->Face[{2}]", element.Properties[1].Value, processedGroupCount, processedFaceCount));
                                }
                            }

                            meshpart.Key = materialGroup.Key;

                            parts.Add(meshpart);
                            SceneManager.Current.UpdateProgress(string.Format("Processed {0}->MeshPart", element.Properties[1].Value));

                            processedGroupCount++;
                        }
                    }
                }

                components.Add((long)element.Properties[0].Value, parts);
                SceneManager.Current.UpdateProgress(string.Format("Processed {0}", element.Properties[1].Value));
            }

            string[] connectionOrder = new string[] { "System.Collections.Generic.List`1[Flummery.ModelMeshPart]", "Flummery.Texture", "Flummery.Material", "Flummery.ModelMesh" };
            var      connections     = fbx.Elements.Find(e => e.ID == "Connections");

            HashSet <long> loaded = new HashSet <long>();

            foreach (var connectionType in connectionOrder)
            {
                var connectionsOfType = connections.Children.Where(c => components.ContainsKey((long)c.Properties[1].Value) && components[(long)c.Properties[1].Value].GetType().ToString() == connectionType);

                foreach (var connection in connectionsOfType)
                {
                    long keyA = (long)connection.Properties[1].Value;
                    long keyB = (long)connection.Properties[2].Value;

                    Console.WriteLine("{0} is connected to {1} :: {2}", keyA, keyB, connectionType);

                    switch (connectionType)
                    {
                    case "Flummery.ModelMesh":
                        int boneID;

                        if (keyB == 0)
                        {
                            boneID = model.AddMesh((ModelMesh)components[keyA]);
                            model.SetName(((ModelMesh)components[keyA]).Name, boneID);
                            if (transforms.ContainsKey(keyA))
                            {
                                model.SetTransform(transforms[keyA], boneID);
                            }
                        }
                        else
                        {
                            var parent = model.FindMesh(keyB);
                            if (parent != null)
                            {
                                boneID = model.AddMesh((ModelMesh)components[keyA], parent.Parent.Index);
                                model.SetName(((ModelMesh)components[keyA]).Name, boneID);
                                if (transforms.ContainsKey(keyA))
                                {
                                    model.SetTransform(transforms[keyA], boneID);
                                }
                            }
                            else
                            {
                                if (!components.ContainsKey(keyB))
                                {
                                    Console.WriteLine("Components doesn't contain {0}", keyB);
                                }
                                else
                                {
                                    Console.WriteLine("Couldn't find {0}", ((ModelMesh)components[keyB]).Name);
                                }
                            }
                        }
                        break;

                    case "Flummery.Texture":
                        if (components.ContainsKey(keyB) && components[keyB].GetType().ToString() == "Flummery.Material")
                        {
                            if (loaded.Add(keyB))
                            {
                                ((Material)components[keyB]).Texture = (Texture)components[keyA];
                                SceneManager.Current.Add((Material)components[keyB]);
                            }
                        }
                        else
                        {
                            Console.WriteLine("{0} is of unknown type {1}", keyA, components[keyA].GetType().ToString());
                            Console.WriteLine("{0} is of unknown type {1}", keyB, components[keyB].GetType().ToString());
                        }
                        break;

                    case "System.Collections.Generic.List`1[Flummery.ModelMeshPart]":
                        if (components.ContainsKey(keyB) && components[keyB].GetType().ToString() == "Flummery.ModelMesh")
                        {
                            if (triangulationErrors.ContainsKey(keyA))
                            {
                                triangulationErrors[keyA] += " (geometry of " + ((ModelMesh)components[keyB]).Name + ")";
                            }

                            foreach (var part in (List <ModelMeshPart>)components[keyA])
                            {
                                ((ModelMesh)components[keyB]).AddModelMeshPart(part);
                            }
                        }
                        break;

                    case "Flummery.Material":
                        if (components.ContainsKey(keyB) && components[keyB].GetType().ToString() == "Flummery.ModelMesh")
                        {
                            var materialLookup = connections.Children.Where(c => (long)c.Properties[2].Value == keyB).ToList();
                            for (int i = materialLookup.Count - 1; i > -1; i--)
                            {
                                if (!connectionsOfType.Any(c => (long)c.Properties[1].Value == (long)materialLookup[i].Properties[1].Value))
                                {
                                    materialLookup.RemoveAt(i);
                                }
                            }

                            foreach (var part in ((ModelMesh)components[keyB]).MeshParts)
                            {
                                if ((long)materialLookup[(int)part.Key].Properties[1].Value == keyA)
                                {
                                    part.Material = (Material)components[keyA];
                                    //SceneManager.Current.Add(part.Material);
                                }
                            }
                        }
                        break;

                    default:
                        Console.WriteLine("{0} is of unknown type {1}", keyA, components[keyA].GetType().ToString());
                        if (components.ContainsKey(keyB))
                        {
                            Console.WriteLine("{0} is of unknown type {1}", keyB, components[keyB].GetType().ToString());
                        }
                        Console.WriteLine("===");
                        break;
                    }
                }
            }

            if (triangulationErrors.Count > 0)
            {
                SceneManager.Current.UpdateProgress(string.Format("Failed to load {0}", name));

                string error = string.Format("File \"{0}\" has part{1} that need been triangulating!  Please triangulate the following:", name, (triangulationErrors.Count > 1 ? "s" : ""));
                foreach (var kvp in triangulationErrors)
                {
                    error += "\r\n" + kvp.Value;
                }

                SceneManager.Current.RaiseError(error);

                return(null);
            }
            else
            {
                SceneManager.Current.UpdateProgress(string.Format("Loaded {0}", name));

                model.Santise();

                if (worldMatrix != Matrix4.Identity)
                {
                    ModelManipulator.Freeze(model, worldMatrix);
                }
                ModelManipulator.FlipAxis(model.Root.Mesh, Axis.X, true);

                return(model);
            }
        }