示例#1
0
        private static void ProcessBones(Scene scene, ref GeoModel model)
        {
            foreach (Mesh mesh in scene.Meshes)
            {
                int boneIndexLocal = 0;
                foreach (Bone bone in mesh.Bones)
                {
                    model.HasBones = true;
                    if (model.Armature == null)
                    {
                        FindRootBone(scene, ref model, bone.Name);
                    }

                    if (!model.BoneNames.Contains(bone.Name))
                    {
                        model.BoneNames.Add(bone.Name);
                    }

                    GeoBone geoBone = new GeoBone();
                    geoBone.Name   = bone.Name;
                    geoBone.Index  = boneIndexLocal;
                    geoBone.Offset = HelperMatrix.ConvertAssimpToOpenTKMatrix(bone.OffsetMatrix);
                    boneIndexLocal++;
                }
            }
            if (model.BoneNames.Count > KWEngine.MAX_BONES)
            {
                throw new Exception("Model has more than " + KWEngine.MAX_BONES + " bones. Cannot import model.");
            }
        }
示例#2
0
        private static void FindRootBone(Scene scene, ref GeoModel model, string boneName)
        {
            int c = 0;

            while (c < scene.Meshes.Count)
            {
                Mesh m = scene.Meshes[c];
                if (m.BoneCount > 0)
                {
                    Node boneNode = GetNodeForBone(scene.RootNode, m.Bones[0]);
                    if (boneNode != null)
                    {
                        while (boneNode.Parent != scene.RootNode)
                        {
                            boneNode = boneNode.Parent;
                        }
                        foreach (GeoNode n in model.NodesWithoutHierarchy)
                        {
                            if (n.Name == boneNode.Name)
                            {
                                model.Armature = n;
                                return;
                            }
                        }
                    }
                }
                c++;
            }
        }
示例#3
0
        private static void GenerateNodeHierarchy(Node node, ref GeoModel model)
        {
            GeoNode root = new GeoNode();

            root.Name      = node.Name;
            root.Transform = HelperMatrix.ConvertAssimpToOpenTKMatrix(node.Transform);
            root.Parent    = null;
            model.Root     = root;
            model.NodesWithoutHierarchy.Add(root);
            foreach (Node child in node.Children)
            {
                root.Children.Add(MapNodeToNode(child, ref model, ref root));
            }
        }
示例#4
0
        private static GeoModel ProcessScene(Scene scene, string filename, AssemblyMode am)
        {
            GeoModel returnModel = new GeoModel();

            returnModel.Filename = filename;
            returnModel.Name     = StripPathFromFile(filename);
            if (am == AssemblyMode.Internal)
            {
                returnModel.PathAbsolute = "";
            }
            else
            {
                if (am == AssemblyMode.User)
                {
                    returnModel.PathAbsolute = Assembly.GetEntryAssembly().GetName().Name + "." + filename;
                }
                else
                {
                    string p  = Assembly.GetExecutingAssembly().Location;
                    string pA = new DirectoryInfo(StripFileNameFromPath(p)).FullName;
                    if (!Path.IsPathRooted(filename))
                    {
                        returnModel.PathAbsolute = Path.Combine(pA, filename);
                    }
                    else
                    {
                        returnModel.PathAbsolute = filename;
                    }

                    bool success = File.Exists(returnModel.PathAbsolute);
                }
            }


            returnModel.AssemblyMode = am;
            returnModel.CalculatePath();
            returnModel.Meshes = new Dictionary <string, GeoMesh>();
            returnModel.TransformGlobalInverse = Matrix4.Invert(HelperMatrix.ConvertAssimpToOpenTKMatrix(scene.RootNode.Transform));
            returnModel.Textures = new Dictionary <string, GeoTexture>();
            returnModel.IsValid  = false;

            GenerateNodeHierarchy(scene.RootNode, ref returnModel);
            ProcessBones(scene, ref returnModel);
            ProcessMeshes(scene, ref returnModel);
            ProcessAnimations(scene, ref returnModel);

            returnModel.IsValid = true;
            GLWindow.StartGarbageCollection();
            return(returnModel);
        }
示例#5
0
        private static GeoNode MapNodeToNode(Node n, ref GeoModel model, ref GeoNode callingNode)
        {
            GeoNode gNode = new GeoNode();

            gNode.Parent    = callingNode;
            gNode.Transform = HelperMatrix.ConvertAssimpToOpenTKMatrix(n.Transform);
            gNode.Name      = n.Name;
            model.NodesWithoutHierarchy.Add(gNode);
            foreach (Node child in n.Children)
            {
                gNode.Children.Add(MapNodeToNode(child, ref model, ref gNode));
            }

            return(gNode);
        }
示例#6
0
        private static bool CheckIfOtherModelsShareTexture(string texture, string path, out GeoTexture sharedTex)
        {
            sharedTex = new GeoTexture();
            foreach (string key in KWEngine.Models.Keys)
            {
                GeoModel m = KWEngine.Models[key];
                if (m.Path == path)
                {
                    foreach (string texKey in m.Textures.Keys)
                    {
                        if (texKey == texture)
                        {
                            sharedTex = m.Textures[texKey];
                            return(true);
                        }
                    }
                }
            }

            return(false);
        }
示例#7
0
        private static void ProcessAnimations(Scene scene, ref GeoModel model)
        {
            if (scene.HasAnimations)
            {
                model.Animations = new List <GeoAnimation>();
                foreach (Animation a in scene.Animations)
                {
                    GeoAnimation ga = new GeoAnimation();
                    ga.DurationInTicks   = (float)a.DurationInTicks;
                    ga.TicksPerSecond    = (float)a.TicksPerSecond;
                    ga.Name              = a.Name;
                    ga.AnimationChannels = new Dictionary <string, GeoNodeAnimationChannel>();
                    foreach (NodeAnimationChannel nac in a.NodeAnimationChannels)
                    {
                        GeoNodeAnimationChannel ganc = new GeoNodeAnimationChannel();

                        // Rotation:
                        ganc.RotationKeys = new List <GeoAnimationKeyframe>();
                        foreach (QuaternionKey key in nac.RotationKeys)
                        {
                            GeoAnimationKeyframe akf = new GeoAnimationKeyframe();
                            akf.Time        = (float)key.Time;
                            akf.Rotation    = new OpenTK.Quaternion(key.Value.X, key.Value.Y, key.Value.Z, key.Value.W);
                            akf.Translation = new Vector3(0, 0, 0);
                            akf.Scale       = new Vector3(1, 1, 1);
                            akf.Type        = GeoKeyframeType.Rotation;
                            ganc.RotationKeys.Add(akf);
                        }

                        // Scale:
                        ganc.ScaleKeys = new List <GeoAnimationKeyframe>();
                        foreach (VectorKey key in nac.ScalingKeys)
                        {
                            GeoAnimationKeyframe akf = new GeoAnimationKeyframe();
                            akf.Time        = (float)key.Time;
                            akf.Rotation    = new OpenTK.Quaternion(0, 0, 0, 1);
                            akf.Translation = new Vector3(0, 0, 0);
                            akf.Scale       = new Vector3(key.Value.X, key.Value.Y, key.Value.Z);
                            akf.Type        = GeoKeyframeType.Scale;
                            ganc.ScaleKeys.Add(akf);
                        }

                        // Translation:
                        ganc.TranslationKeys = new List <GeoAnimationKeyframe>();
                        foreach (VectorKey key in nac.PositionKeys)
                        {
                            GeoAnimationKeyframe akf = new GeoAnimationKeyframe();
                            akf.Time        = (float)key.Time;
                            akf.Rotation    = new OpenTK.Quaternion(0, 0, 0, 1);
                            akf.Translation = new Vector3(key.Value.X, key.Value.Y, key.Value.Z);
                            akf.Scale       = new Vector3(1, 1, 1);
                            akf.Type        = GeoKeyframeType.Translation;
                            ganc.TranslationKeys.Add(akf);
                        }

                        //if(model.BoneNames.Contains(nac.NodeName))
                        ga.AnimationChannels.Add(nac.NodeName, ganc);
                    }
                    model.Animations.Add(ga);
                }
            }
        }
示例#8
0
        private static void ProcessMeshes(Scene scene, ref GeoModel model)
        {
            model.MeshHitboxes = new List <GeoMeshHitbox>();

            string        currentMeshName = null;
            GeoMeshHitbox meshHitBox = null;
            float         minX = float.MaxValue, minY = float.MaxValue, minZ = float.MaxValue;
            float         maxX = float.MinValue, maxY = float.MinValue, maxZ = float.MinValue;
            Matrix4       nodeTransform = Matrix4.Identity;
            Mesh          mesh          = null;

            for (int m = 0; m < scene.MeshCount; m++)
            {
                mesh = scene.Meshes[m];
                bool isNewMesh = currentMeshName != null && mesh.Name != currentMeshName && model.Filename != "kwcube6.obj";

                if (mesh.PrimitiveType != PrimitiveType.Triangle)
                {
                    throw new Exception("Model's primitive type is not set to 'triangles'. Cannot import model.");
                }

                if (isNewMesh)
                {
                    if (currentMeshName != null)
                    {
                        // Generate hitbox for the previous mesh:
                        meshHitBox           = new GeoMeshHitbox(maxX, maxY, maxZ, minX, minY, minZ, currentMeshName.ToLower().Contains("_fullhitbox") ? mesh : null);
                        meshHitBox.Model     = model;
                        meshHitBox.Name      = currentMeshName;
                        meshHitBox.Transform = nodeTransform;
                        meshHitBox.IsActive  = !currentMeshName.ToLower().Contains("_nohitbox");
                        model.MeshHitboxes.Add(meshHitBox);
                    }
                    minX = float.MaxValue;
                    minY = float.MaxValue;
                    minZ = float.MaxValue;

                    maxX = float.MinValue;
                    maxY = float.MinValue;
                    maxZ = float.MinValue;
                }

                currentMeshName = mesh.Name;

                GeoMesh geoMesh         = new GeoMesh();
                Matrix4 parentTransform = Matrix4.Identity;
                bool    transformFound  = FindTransformForMesh(scene, scene.RootNode, mesh, ref nodeTransform, out string nodeName, ref parentTransform);
                geoMesh.Transform = nodeTransform;
                geoMesh.Terrain   = null;
                geoMesh.BoneTranslationMatrixCount = mesh.BoneCount;
                geoMesh.Name      = mesh.Name + " #" + m.ToString().PadLeft(4, '0') + " (Node: " + nodeName + ")";
                geoMesh.NameOrg   = mesh.Name;
                geoMesh.Vertices  = new GeoVertex[mesh.VertexCount];
                geoMesh.Primitive = OpenTK.Graphics.OpenGL4.PrimitiveType.Triangles;
                geoMesh.VAOGenerateAndBind();

                for (int i = 0; i < mesh.VertexCount; i++)
                {
                    Vector3D vertex = mesh.Vertices[i];
                    if (vertex.X > maxX)
                    {
                        maxX = vertex.X;
                    }
                    if (vertex.Y > maxY)
                    {
                        maxY = vertex.Y;
                    }
                    if (vertex.Z > maxZ)
                    {
                        maxZ = vertex.Z;
                    }
                    if (vertex.X < minX)
                    {
                        minX = vertex.X;
                    }
                    if (vertex.Y < minY)
                    {
                        minY = vertex.Y;
                    }
                    if (vertex.Z < minZ)
                    {
                        minZ = vertex.Z;
                    }

                    GeoVertex geoVertex = new GeoVertex(i, vertex.X, vertex.Y, vertex.Z);
                    geoMesh.Vertices[i] = geoVertex;
                }
                geoMesh.Indices = mesh.GetUnsignedIndices();

                if (model.HasBones)
                {
                    for (int i = 0; i < mesh.BoneCount; i++)
                    {
                        Bone bone = mesh.Bones[i];

                        geoMesh.BoneNames.Add(bone.Name);
                        geoMesh.BoneIndices.Add(i);
                        geoMesh.BoneOffset.Add(HelperMatrix.ConvertAssimpToOpenTKMatrix(bone.OffsetMatrix));

                        foreach (VertexWeight vw in bone.VertexWeights)
                        {
                            int weightIndexToBeSet = geoMesh.Vertices[vw.VertexID].WeightSet;
                            if (weightIndexToBeSet >= KWEngine.MAX_BONE_WEIGHTS)
                            {
                                throw new Exception("Model's bones have more than three weights per vertex. Cannot import model.");
                            }

                            //Debug.WriteLine("Setting Vertex " + vw.VertexID + " with BoneID " + i + " and Weight: " + vw.Weight + " to Slot #" + weightIndexToBeSet);
                            geoMesh.Vertices[vw.VertexID].Weights[weightIndexToBeSet] = vw.Weight;
                            geoMesh.Vertices[vw.VertexID].BoneIDs[weightIndexToBeSet] = i;
                            geoMesh.Vertices[vw.VertexID].WeightSet++;
                        }
                    }
                }

                geoMesh.VBOGenerateIndices();
                geoMesh.VBOGenerateVerticesAndBones(model.HasBones);
                geoMesh.VBOGenerateNormals(mesh);
                geoMesh.VBOGenerateTangents(mesh);
                if (model.Filename == "kwcube.obj")
                {
                    geoMesh.VBOGenerateTextureCoords1(mesh, scene, 1);
                }
                else if (model.Filename == "kwcube6.obj")
                {
                    geoMesh.VBOGenerateTextureCoords1(mesh, scene, 6);
                }
                else if (model.Filename == "kwsphere.obj")
                {
                    geoMesh.VBOGenerateTextureCoords1(mesh, scene, 2);
                }
                else
                {
                    geoMesh.VBOGenerateTextureCoords1(mesh, scene);
                }
                geoMesh.VBOGenerateTextureCoords2(mesh);

                ProcessMaterialsForMesh(scene, mesh, ref model, ref geoMesh, model.Filename == "kwcube.obj" || model.Filename == "kwcube6.obj");



                geoMesh.VAOUnbind();

                model.Meshes.Add(geoMesh.Name, geoMesh);
            }

            // Generate hitbox for the last mesh:
            if (currentMeshName != null)
            {
                meshHitBox           = new GeoMeshHitbox(maxX, maxY, maxZ, minX, minY, minZ, currentMeshName.ToLower().Contains("_fullhitbox") ? mesh : null);
                meshHitBox.Model     = model;
                meshHitBox.Name      = model.Filename == "kwcube6.obj" ? "KWCube6" : currentMeshName;
                meshHitBox.Transform = nodeTransform;
                meshHitBox.IsActive  = !currentMeshName.ToLower().Contains("_nohitbox");
                model.MeshHitboxes.Add(meshHitBox);
            }

            foreach (GeoMeshHitbox hitbox in model.MeshHitboxes)
            {
                foreach (GeoMesh m in model.Meshes.Values)
                {
                    if (m.NameOrg == hitbox.Name)
                    {
                        hitbox.Mesh = m;
                        break;
                    }
                }
            }
        }
示例#9
0
        internal static GeoModel LoadModel(string filename, bool flipTextureCoordinates = false, AssemblyMode am = AssemblyMode.Internal)
        {
            AssimpContext importer = new AssimpContext();

            importer.SetConfig(new VertexBoneWeightLimitConfig(KWEngine.MAX_BONE_WEIGHTS));
            importer.SetConfig(new MaxBoneCountConfig(KWEngine.MAX_BONES));
            FileType type  = CheckFileEnding(filename);
            Scene    scene = null;

            if (am != AssemblyMode.File)
            {
                if (type == FileType.Invalid)
                {
                    throw new Exception("Model file has invalid type.");
                }
                string   resourceName;
                Assembly assembly;

                if (am == AssemblyMode.Internal)
                {
                    assembly     = Assembly.GetExecutingAssembly();
                    resourceName = "KWEngine2.Assets.Models." + filename;
                }
                else
                {
                    assembly     = Assembly.GetEntryAssembly();
                    resourceName = assembly.GetName().Name + "." + filename;
                }

                using (Stream s = assembly.GetManifestResourceStream(resourceName))
                {
                    PostProcessSteps steps =
                        PostProcessSteps.LimitBoneWeights
                        | PostProcessSteps.Triangulate
                        | PostProcessSteps.ValidateDataStructure
                        | PostProcessSteps.GenerateUVCoords
                        | PostProcessSteps.CalculateTangentSpace;
                    if (filename != "kwcube.obj" && filename != "kwcube6.obj")
                    {
                        steps |= PostProcessSteps.JoinIdenticalVertices;
                    }
                    if (type == FileType.DirectX)
                    {
                        steps |= PostProcessSteps.FlipWindingOrder;
                    }
                    if (flipTextureCoordinates)
                    {
                        steps |= PostProcessSteps.FlipUVs;
                    }
                    scene = importer.ImportFileFromStream(s, steps);
                }
            }
            else
            {
                if (type != FileType.Invalid)
                {
                    PostProcessSteps steps =
                        PostProcessSteps.LimitBoneWeights
                        | PostProcessSteps.Triangulate
                        //| PostProcessSteps.FixInFacingNormals
                        | PostProcessSteps.ValidateDataStructure
                        | PostProcessSteps.GenerateUVCoords
                        | PostProcessSteps.CalculateTangentSpace
                        | PostProcessSteps.JoinIdenticalVertices
                    ;
                    if (type == FileType.DirectX)
                    {
                        steps |= PostProcessSteps.FlipWindingOrder;
                    }
                    if (flipTextureCoordinates)
                    {
                        steps |= PostProcessSteps.FlipUVs;
                    }

                    scene = importer.ImportFile(filename, steps);
                }
                else
                {
                    throw new Exception("Could not load model: only OBJ, DAE, FBX and X are supported (GLTF support coming soon).");
                }
            }
            if (scene == null)
            {
                throw new Exception("Could not load or find model: " + filename);
            }

            GeoModel model = ProcessScene(scene, am == AssemblyMode.File ? filename.ToLower().Trim() : filename, am);

            return(model);
        }
示例#10
0
        private static void ProcessMaterialsForMesh(Scene scene, Mesh mesh, ref GeoModel model, ref GeoMesh geoMesh, bool isKWCube = false)
        {
            GeoMaterial geoMaterial = new GeoMaterial();
            Material    material    = null;

            if (isKWCube)
            {
                if (mesh.MaterialIndex >= 0)
                {
                    material                  = scene.Materials[mesh.MaterialIndex];
                    geoMaterial.Name          = model.Filename == "kwcube.obj" ? "KWCube" : material.Name;
                    geoMaterial.BlendMode     = material.BlendMode == BlendMode.Default ? OpenTK.Graphics.OpenGL4.BlendingFactor.OneMinusSrcAlpha : OpenTK.Graphics.OpenGL4.BlendingFactor.One; // TODO: Check if this is correct!
                    geoMaterial.ColorDiffuse  = new Vector4(1, 1, 1, 1);
                    geoMaterial.ColorEmissive = new Vector4(0, 0, 0, 1);
                }
                else
                {
                    geoMaterial.Name          = "kw-undefined.";
                    geoMaterial.BlendMode     = OpenTK.Graphics.OpenGL4.BlendingFactor.OneMinusSrcAlpha;
                    geoMaterial.ColorDiffuse  = new Vector4(1, 1, 1, 1);
                    geoMaterial.ColorEmissive = new Vector4(0, 0, 0, 1);
                }
                geoMaterial.SpecularArea  = 1024;
                geoMaterial.SpecularPower = 0;
            }
            else
            {
                if (mesh.MaterialIndex >= 0)
                {
                    material         = scene.Materials[mesh.MaterialIndex];
                    geoMaterial.Name = material.Name;

                    if (material.Name == "DefaultMaterial")
                    {
                        geoMaterial.BlendMode     = OpenTK.Graphics.OpenGL4.BlendingFactor.OneMinusSrcAlpha;
                        geoMaterial.ColorDiffuse  = new Vector4(1, 1, 1, 1);
                        geoMaterial.ColorEmissive = new Vector4(0, 0, 0, 1);
                        geoMaterial.SpecularPower = 0;
                        geoMaterial.SpecularArea  = 1024;
                        geoMaterial.TextureSpecularIsRoughness = false;
                        if (mesh.Name != null && mesh.Name.ToLower().Contains("_invisible"))
                        {
                            geoMaterial.Opacity = 0;
                        }
                    }
                    else
                    {
                        geoMaterial.BlendMode = material.BlendMode == BlendMode.Default ? OpenTK.Graphics.OpenGL4.BlendingFactor.OneMinusSrcAlpha : OpenTK.Graphics.OpenGL4.BlendingFactor.One; // TODO: Check if this is correct!
                        if (model.AssemblyMode == AssemblyMode.Internal && material.Name == "System")
                        {
                            geoMaterial.ColorDiffuse = new Vector4(1, 1, 1, 1);
                        }
                        else if (model.AssemblyMode == AssemblyMode.Internal && material.Name == "X")
                        {
                            geoMaterial.ColorDiffuse = new Vector4(1, 0, 0, 1);
                        }
                        else if (model.AssemblyMode == AssemblyMode.Internal && material.Name == "Y")
                        {
                            geoMaterial.ColorDiffuse = new Vector4(0, 1, 0, 1);
                        }
                        else if (model.AssemblyMode == AssemblyMode.Internal && material.Name == "Z")
                        {
                            geoMaterial.ColorDiffuse = new Vector4(0, 0, 1, 1);
                        }
                        else
                        {
                            geoMaterial.ColorDiffuse = material.HasColorDiffuse ? new Vector4(material.ColorDiffuse.R, material.ColorDiffuse.G, material.ColorDiffuse.B, material.ColorDiffuse.A) : new Vector4(1, 1, 1, 1);
                        }
                        geoMaterial.ColorEmissive = material.HasColorEmissive ? new Vector4(material.ColorEmissive.R, material.ColorEmissive.G, material.ColorEmissive.B, material.ColorEmissive.A) : new Vector4(0, 0, 0, 1);
                        geoMaterial.SpecularPower = material.ShininessStrength;
                        geoMaterial.SpecularArea  = material.Shininess;
                        geoMaterial.TextureSpecularIsRoughness = false;
                        geoMaterial.Opacity = material.HasOpacity ? material.Opacity : 1;
                        if (mesh.Name != null && mesh.Name.ToLower().Contains("_invisible"))
                        {
                            geoMaterial.Opacity = 0;
                        }
                    }
                }
                else
                {
                    geoMaterial.Name          = "kw-undefined.";
                    geoMaterial.BlendMode     = OpenTK.Graphics.OpenGL4.BlendingFactor.OneMinusSrcAlpha;
                    geoMaterial.ColorDiffuse  = new Vector4(1, 1, 1, 1);
                    geoMaterial.ColorEmissive = new Vector4(0, 0, 0, 1);
                    geoMaterial.SpecularArea  = 1024;
                    geoMaterial.SpecularPower = 0;
                    geoMaterial.TextureSpecularIsRoughness = false;
                    if (mesh.Name != null && mesh.Name.ToLower().Contains("_invisible"))
                    {
                        geoMaterial.Opacity = 0;
                    }
                }
            }

            // Process Textures:
            if (material != null)
            {
                bool          roughnessUsed      = false;
                TextureSlot[] texturesOfMaterial = material.GetAllMaterialTextures();
                foreach (TextureSlot slot in texturesOfMaterial)
                {
                    if (slot.TextureType == TextureType.Shininess) // this is PBR Roughness
                    {
                        GeoTexture tex = new GeoTexture();
                        tex.UVTransform = new OpenTK.Vector2(1, 1);
                        tex.Filename    = slot.FilePath;
                        tex.UVMapIndex  = slot.UVIndex;
                        if (model.Textures.ContainsKey(tex.Filename))
                        {
                            tex.OpenGLID = model.Textures[tex.Filename].OpenGLID;
                        }
                        else
                        {
                            if (model.AssemblyMode == AssemblyMode.File)
                            {
                                tex.OpenGLID = HelperTexture.LoadTextureForModelExternal(
                                    FindTextureInSubs(StripPathFromFile(tex.Filename), model.PathAbsolute), true
                                    );
                            }
                            else
                            {
                                string path = StripFileNameFromAssemblyPath(model.PathAbsolute).Substring(model.PathAbsolute.IndexOf('.') + 1) + StripPathFromFile(tex.Filename);
                                tex.OpenGLID = HelperTexture.LoadTextureForModelInternal(path, true);
                            }
                            if (tex.OpenGLID > 0)
                            {
                                tex.Type = GeoTexture.TexType.Specular;
                                model.Textures.Add(tex.Filename, tex);
                                geoMaterial.TextureSpecular            = tex;
                                geoMaterial.TextureSpecularIsRoughness = true;
                                roughnessUsed = true;
                            }
                            else
                            {
                                geoMaterial.TextureSpecular            = tex;
                                geoMaterial.TextureSpecularIsRoughness = false;
                                tex.OpenGLID = KWEngine.TextureBlack;
                            }
                        }
                        break;
                    }
                }


                // Diffuse texture
                if (material.HasTextureDiffuse)
                {
                    GeoTexture tex = new GeoTexture();
                    tex.UVTransform = new OpenTK.Vector2(1, 1);
                    tex.Filename    = material.TextureDiffuse.FilePath;
                    tex.UVMapIndex  = material.TextureDiffuse.UVIndex;
                    tex.Type        = GeoTexture.TexType.Diffuse;
                    if (model.Textures.ContainsKey(tex.Filename))
                    {
                        tex.OpenGLID = model.Textures[tex.Filename].OpenGLID;
                        geoMaterial.TextureDiffuse = tex;
                    }
                    else if (CheckIfOtherModelsShareTexture(tex.Filename, model.Path, out GeoTexture sharedTexture))
                    {
                        geoMaterial.TextureDiffuse = sharedTexture;
                    }
                    else
                    {
                        if (model.AssemblyMode == AssemblyMode.File)
                        {
                            tex.OpenGLID = HelperTexture.LoadTextureForModelExternal(
                                FindTextureInSubs(StripPathFromFile(tex.Filename), model.PathAbsolute)
                                );
                        }
                        else
                        {
                            string path = StripFileNameFromAssemblyPath(model.PathAbsolute).Substring(model.PathAbsolute.IndexOf('.') + 1) + StripPathFromFile(tex.Filename);
                            tex.OpenGLID = HelperTexture.LoadTextureForModelInternal(path, true);
                        }
                        if (tex.OpenGLID > 0)
                        {
                            geoMaterial.TextureDiffuse = tex;
                            model.Textures.Add(tex.Filename, tex);
                        }
                        else
                        {
                            tex.OpenGLID = KWEngine.TextureDefault;
                            geoMaterial.TextureDiffuse = tex;
                        }
                    }
                }

                // Normal map texture
                if (material.HasTextureNormal)
                {
                    GeoTexture tex = new GeoTexture();
                    tex.UVTransform = new OpenTK.Vector2(1, 1);
                    tex.Filename    = material.TextureNormal.FilePath;
                    tex.UVMapIndex  = material.TextureNormal.UVIndex;
                    tex.Type        = GeoTexture.TexType.Normal;
                    if (model.Textures.ContainsKey(tex.Filename))
                    {
                        tex.OpenGLID = model.Textures[tex.Filename].OpenGLID;
                        geoMaterial.TextureNormal = tex;
                    }
                    else if (CheckIfOtherModelsShareTexture(tex.Filename, model.Path, out GeoTexture sharedTexture))
                    {
                        geoMaterial.TextureNormal = sharedTexture;
                    }
                    else
                    {
                        if (model.AssemblyMode == AssemblyMode.File)
                        {
                            tex.OpenGLID = HelperTexture.LoadTextureForModelExternal(
                                FindTextureInSubs(StripPathFromFile(tex.Filename), model.PathAbsolute)
                                );
                        }
                        else
                        {
                            string path = StripFileNameFromAssemblyPath(model.PathAbsolute).Substring(model.PathAbsolute.IndexOf('.') + 1) + StripPathFromFile(tex.Filename);
                            tex.OpenGLID = HelperTexture.LoadTextureForModelInternal(path, true);
                        }
                        if (tex.OpenGLID > 0)
                        {
                            model.Textures.Add(tex.Filename, tex);
                            geoMaterial.TextureNormal = tex;
                        }
                        else
                        {
                            tex.OpenGLID = KWEngine.TextureBlack;
                            //geoMaterial.TextureNormal = tex;
                        }
                    }
                }

                // Specular map texture
                if (material.HasTextureSpecular && roughnessUsed == false)
                {
                    GeoTexture tex = new GeoTexture();
                    tex.UVTransform = new OpenTK.Vector2(1, 1);
                    tex.Filename    = material.TextureSpecular.FilePath;
                    tex.UVMapIndex  = material.TextureSpecular.UVIndex;
                    tex.Type        = GeoTexture.TexType.Specular;
                    if (model.Textures.ContainsKey(tex.Filename))
                    {
                        tex.OpenGLID = model.Textures[tex.Filename].OpenGLID;
                        geoMaterial.TextureSpecular = tex;
                    }
                    else if (CheckIfOtherModelsShareTexture(tex.Filename, model.Path, out GeoTexture sharedTexture))
                    {
                        geoMaterial.TextureSpecular = sharedTexture;
                    }
                    else
                    {
                        if (model.AssemblyMode == AssemblyMode.File)
                        {
                            tex.OpenGLID = HelperTexture.LoadTextureForModelExternal(
                                FindTextureInSubs(StripPathFromFile(tex.Filename), model.PathAbsolute)
                                );
                        }
                        else
                        {
                            string path = StripFileNameFromAssemblyPath(model.PathAbsolute).Substring(model.PathAbsolute.IndexOf('.') + 1) + StripPathFromFile(tex.Filename);
                            tex.OpenGLID = HelperTexture.LoadTextureForModelInternal(path, true);
                        }
                        if (tex.OpenGLID > 0)
                        {
                            geoMaterial.TextureSpecular = tex;

                            model.Textures.Add(tex.Filename, tex);
                        }
                        else
                        {
                            tex.OpenGLID = KWEngine.TextureBlack;
                            geoMaterial.TextureSpecular = tex;
                        }
                    }
                }
                else
                {
                    if (material.HasTextureSpecular && roughnessUsed)
                    {
                        Debug.WriteLine("Skipping specular texture for " + model.Filename + " because roughness texture was found.");
                    }
                }

                // Emissive map texture
                if (material.HasTextureEmissive)
                {
                    GeoTexture tex = new GeoTexture();
                    tex.UVTransform = new OpenTK.Vector2(1, 1);
                    tex.Filename    = material.TextureEmissive.FilePath;
                    tex.UVMapIndex  = material.TextureEmissive.UVIndex;
                    tex.Type        = GeoTexture.TexType.Emissive;
                    if (model.Textures.ContainsKey(tex.Filename))
                    {
                        tex.OpenGLID = model.Textures[tex.Filename].OpenGLID;
                        geoMaterial.TextureEmissive = tex;
                    }
                    else if (CheckIfOtherModelsShareTexture(tex.Filename, model.Path, out GeoTexture sharedTexture))
                    {
                        geoMaterial.TextureEmissive = sharedTexture;
                    }
                    else
                    {
                        if (model.AssemblyMode == AssemblyMode.File)
                        {
                            tex.OpenGLID = HelperTexture.LoadTextureForModelExternal(
                                FindTextureInSubs(StripPathFromFile(tex.Filename), model.PathAbsolute)
                                );
                        }
                        else
                        {
                            string path = StripFileNameFromAssemblyPath(model.PathAbsolute).Substring(model.PathAbsolute.IndexOf('.') + 1) + StripPathFromFile(tex.Filename);
                            tex.OpenGLID = HelperTexture.LoadTextureForModelInternal(path, true);
                        }
                        if (tex.OpenGLID > 0)
                        {
                            geoMaterial.TextureEmissive = tex;

                            model.Textures.Add(tex.Filename, tex);
                        }
                        else
                        {
                            tex.OpenGLID = KWEngine.TextureBlack;
                            geoMaterial.TextureEmissive = tex;
                        }
                    }
                }

                // Light map texture
                if (material.HasTextureLightMap)
                {
                    GeoTexture tex = new GeoTexture();
                    tex.UVTransform = new OpenTK.Vector2(1, 1);
                    tex.Filename    = material.TextureLightMap.FilePath;
                    tex.UVMapIndex  = material.TextureLightMap.UVIndex;
                    tex.Type        = GeoTexture.TexType.Light;
                    if (model.Textures.ContainsKey(tex.Filename))
                    {
                        tex.OpenGLID             = model.Textures[tex.Filename].OpenGLID;
                        geoMaterial.TextureLight = tex;
                    }
                    else if (CheckIfOtherModelsShareTexture(tex.Filename, model.Path, out GeoTexture sharedTexture))
                    {
                        geoMaterial.TextureLight = sharedTexture;
                    }
                    else
                    {
                        if (model.AssemblyMode == AssemblyMode.File)
                        {
                            tex.OpenGLID = HelperTexture.LoadTextureForModelExternal(
                                FindTextureInSubs(StripPathFromFile(tex.Filename), model.PathAbsolute)
                                );
                        }
                        else
                        {
                            string path = StripFileNameFromAssemblyPath(model.PathAbsolute).Substring(model.PathAbsolute.IndexOf('.') + 1) + StripPathFromFile(tex.Filename);
                            tex.OpenGLID = HelperTexture.LoadTextureForModelInternal(path, true);
                        }
                        if (tex.OpenGLID > 0)
                        {
                            model.Textures.Add(tex.Filename, tex);
                            geoMaterial.TextureLight = tex;
                        }
                        else
                        {
                            tex.OpenGLID = KWEngine.TextureBlack;
                            //geoMaterial.TextureLight = tex;
                        }
                    }
                }
            }

            geoMesh.Material = geoMaterial;
        }