using System; using System.Collections.Generic; using System.IO; using System.Windows.Forms; using Switch_Toolbox.Library; using GL_EditorFramework.Interfaces; using OpenTK.Graphics.OpenGL; using OpenTK; using Switch_Toolbox.Library.Rendering; using GL_EditorFramework.GL_Core; using System.Drawing; using Switch_Toolbox.Library.IO; using Switch_Toolbox.Library.Forms; using GL_EditorFramework.EditorDrawables; using FirstPlugin.Forms; using static GL_EditorFramework.EditorDrawables.EditorSceneBase; namespace FirstPlugin { public class KCL : TreeNodeFile, IFileFormat { public FileType FileType { get; set; } = FileType.Collision; public bool CanSave { get; set; } public string[] Description { get; set; } = new string[] { "KCL" }; public string[] Extension { get; set; } = new string[] { "*.kcl" }; public string FileName { get; set; } public string FilePath { get; set; } public IFileInfo IFileInfo { get; set; } public bool Identify(System.IO.Stream stream) { using (var reader = new Switch_Toolbox.Library.IO.FileReader(stream, true)) { reader.ByteOrder = Syroot.BinaryData.ByteOrder.BigEndian; return reader.ReadUInt32() == 0x02020000; } } public Type[] Types { get { List types = new List(); types.Add(typeof(MenuExt)); return types.ToArray(); } } byte[] data; STToolStripItem EndiannessToolstrip; public KCL() { ContextMenuStrip = new STContextMenuStrip(); ContextMenuStrip.Items.Add(new STToolStripItem("Save", Save)); ContextMenuStrip.Items.Add(new STToolStripItem("Export", Export)); ContextMenuStrip.Items.Add(new STToolStripItem("Replace", Replace)); ContextMenuStrip.Items.Add(new STToolStripItem("Open Material Editor", OpenMaterialEditor)); EndiannessToolstrip = new STToolStripItem("Big Endian Mode", SwapEndianess) { Checked = true }; ContextMenuStrip.Items.Add(EndiannessToolstrip); CanSave = true; IFileInfo = new IFileInfo(); } public void OpenMaterialEditor(object sender, EventArgs args) { CollisionMaterialEditor editor = new CollisionMaterialEditor(); editor.LoadCollisionValues(kcl, Renderer); if (editor.ShowDialog() == DialogResult.OK) { } } public void Load(System.IO.Stream stream) { Text = FileName; Renderer = new KCLRendering(); stream.Position = 0; data = stream.ToArray(); Read(data); } class MenuExt : IFileMenuExtension { public STToolStripItem[] NewFileMenuExtensions => null; public STToolStripItem[] NewFromFileMenuExtensions => newFileExt; public STToolStripItem[] ToolsMenuExtensions => null; public STToolStripItem[] TitleBarExtensions => null; public STToolStripItem[] CompressionMenuExtensions => null; public STToolStripItem[] ExperimentalMenuExtensions => null; public STToolStripItem[] EditMenuExtensions => null; public ToolStripButton[] IconButtonMenuExtensions => null; STToolStripItem[] newFileExt = new STToolStripItem[2]; public MenuExt() { newFileExt[0] = new STToolStripItem("KCL (Switch)", CreateNew); newFileExt[1] = new STToolStripItem("KCL (Wii U)", CreateNew); } public void CreateNew(object sender, EventArgs args) { var ByteOrder = Syroot.BinaryData.ByteOrder.LittleEndian; if (sender.ToString() == "KCL (Wii U)") ByteOrder = Syroot.BinaryData.ByteOrder.BigEndian; OpenFileDialog opn = new OpenFileDialog(); if (opn.ShowDialog() != DialogResult.OK) return; var mod = EditorCore.Common.OBJ.Read(new MemoryStream(File.ReadAllBytes(opn.FileName)), null); var f = MarioKart.MK7.KCL.FromOBJ(mod); string name = System.IO.Path.GetFileNameWithoutExtension(opn.FileName); KCL kcl = new KCL(); kcl.Text = name; kcl.IFileInfo = new IFileInfo(); kcl.FileName = name; kcl.Renderer = new KCLRendering(); kcl.Read(f.Write(ByteOrder)); ObjectEditor editor = new ObjectEditor(kcl); editor.Text = name; LibraryGUI.Instance.CreateMdiWindow(editor); } } public void Unload() { } public byte[] Save() { return data; } public enum GameSet : ushort { MarioOdyssey = 0x0, MarioKart8D = 0x1, Splatoon2 = 0x2, } public enum CollisionType_MarioOdssey : ushort { } public enum CollisionType_MK8D : ushort { Road_Default = 0, Road_Bumpy = 2, Road_Sand = 4, Offroad_Sand = 6, Road_HeavySand = 8, Road_IcyRoad = 9, OrangeBooster = 10, AntiGravityPanel = 11, Latiku = 16, Wall5 = 17, Wall4 = 19, Wall = 23, Latiku2 = 28, Glider = 31, SidewalkSlope = 32, Road_Dirt = 33, Unsolid = 56, Water = 60, Road_Stone = 64, Wall1 = 81, Wall2 = 84, FinishLine = 93, RedFlowerEffect = 95, Wall3 = 113, WhiteFlowerEffect = 127, Road_Metal = 128, Road_3DS_MP_Piano = 129, Road_RoyalR_Grass = 134, TopPillar = 135, YoshiCuiruit_Grass = 144, YellowFlowerEffect = 159, Road_MetalGating = 160, Road_3DS_MP_Xylophone = 161, Road_3DS_MP_Vibraphone = 193, SNES_RR_road = 227, Offroad_Mud = 230, Trick = 4096, BoosterStunt = 4106, TrickEndOfRamp = 4108, Trick3 = 4130, Trick6 = 4160, Trick4 = 4224, Trick5 = 8192, BoostTrick = 8202, } public void Save(object sender, EventArgs args) { SaveFileDialog sfd = new SaveFileDialog(); sfd.Filter = "Supported Formats|*.kcl"; sfd.FileName = Text; sfd.DefaultExt = ".kcl"; if (sfd.ShowDialog() == DialogResult.OK) { STFileSaver.SaveFileFormat(this, sfd.FileName); } } private Syroot.BinaryData.ByteOrder endianness; public Syroot.BinaryData.ByteOrder Endianness { get { return endianness; } set { endianness = value; if (value == Syroot.BinaryData.ByteOrder.BigEndian) EndiannessToolstrip.Checked = true; else EndiannessToolstrip.Checked = false; } } public void Export(object sender, EventArgs args) { if (kcl == null) return; SaveFileDialog sfd = new SaveFileDialog(); sfd.Filter = "Supported Formats|*.obj"; sfd.FileName = Text; sfd.DefaultExt = ".obj"; if (sfd.ShowDialog() == DialogResult.OK) { kcl.ToOBJ().toWritableObj().WriteObj(sfd.FileName + ".obj"); } } public void Replace(object sender, EventArgs args) { OpenFileDialog ofd = new OpenFileDialog(); ofd.Filter = "Supported Formats|*.obj"; if (ofd.ShowDialog() == DialogResult.OK) { var mod = EditorCore.Common.OBJ.Read(new MemoryStream(File.ReadAllBytes(ofd.FileName)), null); if (mod.Faces.Count > 65535) { MessageBox.Show("this model has too many faces, only models with less than 65535 triangles can be converted"); return; } kcl = MarioKart.MK7.KCL.FromOBJ(mod); data = kcl.Write(Endianness); Read(data); Renderer.UpdateVertexData(); } } public void SwapEndianess(object sender, EventArgs args) { if (EndiannessToolstrip.Checked) { EndiannessToolstrip.Checked = false; Endianness = Syroot.BinaryData.ByteOrder.LittleEndian; } else { EndiannessToolstrip.Checked = true; Endianness = Syroot.BinaryData.ByteOrder.BigEndian; } } Viewport viewport { get { var editor = LibraryGUI.Instance.GetObjectEditor(); return editor.GetViewport(); } set { var editor = LibraryGUI.Instance.GetObjectEditor(); editor.LoadViewport(value); } } public KCLRendering Renderer; bool IsLoaded = false; public override void OnClick(TreeView treeView) { if (Runtime.UseOpenGL) { if (viewport == null) { viewport = new Viewport(); viewport.Dock = DockStyle.Fill; } LibraryGUI.Instance.LoadEditor(viewport); viewport.Text = Text; if (!IsLoaded) { viewport.AddDrawable(Renderer); viewport.LoadObjects(); } IsLoaded = true; } } public MarioKart.MK7.KCL kcl = null; public void Read(byte[] file_data) { data = file_data; try { Endianness = Syroot.BinaryData.ByteOrder.LittleEndian; kcl = new MarioKart.MK7.KCL(file_data, Syroot.BinaryData.ByteOrder.LittleEndian); } catch { Endianness = Syroot.BinaryData.ByteOrder.BigEndian; kcl = new MarioKart.MK7.KCL(file_data, Syroot.BinaryData.ByteOrder.BigEndian); } Read(kcl); } public void Read(MarioKart.MK7.KCL kcl) { Vector3 min = new Vector3(); Vector3 max = new Vector3(); Nodes.Clear(); Renderer.models.Clear(); int CurModelIndx = 0; foreach (MarioKart.MK7.KCL.KCLModel mdl in kcl.Models) { KCLModel kclmodel = new KCLModel(); kclmodel.Text = "Model " + CurModelIndx; int ft = 0; foreach (var plane in mdl.Planes) { var triangle = mdl.GetTriangle(plane); var normal = triangle.Normal; var pointA = triangle.PointA; var pointB = triangle.PointB; var pointC = triangle.PointC; Vertex vtx = new Vertex(); Vertex vtx2 = new Vertex(); Vertex vtx3 = new Vertex(); vtx.pos = new Vector3(Vec3D_To_Vec3(pointA)); vtx2.pos = new Vector3(Vec3D_To_Vec3(pointB)); vtx3.pos = new Vector3(Vec3D_To_Vec3(pointC)); vtx.nrm = new Vector3(Vec3D_To_Vec3(normal)); vtx2.nrm = new Vector3(Vec3D_To_Vec3(normal)); vtx3.nrm = new Vector3(Vec3D_To_Vec3(normal)); KCLModel.Face face = new KCLModel.Face(); face.Text = triangle.Collision.ToString(); face.MaterialFlag = triangle.Collision; var col = MarioKart.MK7.KCLColors.GetMaterialColor(plane.CollisionType); Vector3 ColorSet = new Vector3(col.R, col.G, col.B); vtx.col = new Vector4(ColorSet, 1); vtx2.col = new Vector4(ColorSet, 1); vtx3.col = new Vector4(ColorSet, 1); kclmodel.faces.Add(ft); kclmodel.faces.Add(ft + 1); kclmodel.faces.Add(ft + 2); ft += 3; kclmodel.vertices.Add(vtx); kclmodel.vertices.Add(vtx2); kclmodel.vertices.Add(vtx3); #region FindMaxMin if (triangle.PointA.X < min.X) min.X = (float)triangle.PointA.X; if (triangle.PointA.Y < min.Y) min.Y = (float)triangle.PointA.Y; if (triangle.PointA.Z < min.Z) min.Z = (float)triangle.PointA.Z; if (triangle.PointA.X > max.X) max.X = (float)triangle.PointA.X; if (triangle.PointA.Y > max.Y) max.Y = (float)triangle.PointA.Y; if (triangle.PointA.Z > max.Z) max.Z = (float)triangle.PointA.Z; if (triangle.PointB.X < min.X) min.X = (float)triangle.PointB.X; if (triangle.PointB.Y < min.Y) min.Y = (float)triangle.PointB.Y; if (triangle.PointB.Z < min.Z) min.Z = (float)triangle.PointB.Z; if (triangle.PointB.X > max.X) max.X = (float)triangle.PointB.X; if (triangle.PointB.Y > max.Y) max.Y = (float)triangle.PointB.Y; if (triangle.PointB.Z > max.Z) max.Z = (float)triangle.PointB.Z; if (triangle.PointC.X < min.X) min.X = (float)triangle.PointC.X; if (triangle.PointC.Y < min.Y) min.Y = (float)triangle.PointC.Y; if (triangle.PointC.Z < min.Z) min.Z = (float)triangle.PointC.Z; if (triangle.PointC.X > max.X) max.X = (float)triangle.PointC.X; if (triangle.PointC.Y > max.Y) max.Y = (float)triangle.PointC.Y; if (triangle.PointC.Z > max.Z) max.Z = (float)triangle.PointC.Z; #endregion } Renderer.Max = max; Renderer.Min = min; Renderer.models.Add(kclmodel); Nodes.Add(kclmodel); CurModelIndx++; } } public class KCLRendering : AbstractGlDrawable { public Vector3 Max = new Vector3(0); public Vector3 Min = new Vector3(0); public List SelectedTypes = new List(); public Vector3 position = new Vector3(0, 0, 0); protected bool Selected = false; protected bool Hovered = false; // public override bool IsSelected() => Selected; // public override bool IsSelected(int partIndex) => Selected; public bool IsHovered() => Selected; // gl buffer objects int vbo_position; int ibo_elements; //Set the game's material list public GameSet GameMaterialSet = GameSet.MarioKart8D; public List models = new List(); private void GenerateBuffers() { GL.GenBuffers(1, out vbo_position); GL.GenBuffers(1, out ibo_elements); } public void Destroy() { GL.DeleteBuffer(vbo_position); GL.DeleteBuffer(ibo_elements); } public void UpdateVertexData() { if (!Runtime.OpenTKInitialized) return; DisplayVertex[] Vertices; int[] Faces; int poffset = 0; int voffset = 0; List Vs = new List(); List Ds = new List(); foreach (KCLModel m in models) { m.Offset = poffset * 4; List pv = m.CreateDisplayVertices(); Vs.AddRange(pv); for (int i = 0; i < m.displayFaceSize; i++) { Ds.Add(m.display[i] + voffset); } poffset += m.displayFaceSize; voffset += pv.Count; } // Binds Vertices = Vs.ToArray(); Faces = Ds.ToArray(); // Bind only once! GL.BindBuffer(BufferTarget.ArrayBuffer, vbo_position); GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(Vertices.Length * DisplayVertex.Size), Vertices, BufferUsageHint.StaticDraw); GL.BindBuffer(BufferTarget.ElementArrayBuffer, ibo_elements); GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(Faces.Length * sizeof(int)), Faces, BufferUsageHint.StaticDraw); LibraryGUI.Instance.UpdateViewport(); } public void DrawGlobalOctree() { var size = Max - Min; var BoxSize = size / 2f; for (int k = 0; k < 2; k++) { for (int l = 0; l < 2; l++) { for (int m = 0; m < 2; m++) { var Boxmin = Min + new Vector3(BoxSize.X * m, BoxSize.Y * l, BoxSize.Z * k); var pos = new Vector3(BoxSize.X * m, BoxSize.Y * l, BoxSize.Z * k); } } } } public ShaderProgram defaultShaderProgram; public ShaderProgram solidColorShaderProgram; public override void Prepare(GL_ControlModern control) { string pathFrag = System.IO.Path.Combine(Runtime.ExecutableDir, "Shader") + "\\KCL.frag"; string pathVert = System.IO.Path.Combine(Runtime.ExecutableDir, "Shader") + "\\KCL.vert"; var defaultFrag = new FragmentShader(File.ReadAllText(pathFrag)); var defaultVert = new VertexShader(File.ReadAllText(pathVert)); var solidColorFrag = new FragmentShader( @"#version 330 uniform vec4 color; out vec4 FragColor; void main(){ FragColor = color; }"); var solidColorVert = new VertexShader( @"#version 330 in vec3 vPosition; in vec3 vNormal; in vec3 vColor; out vec3 normal; out vec3 color; out vec3 position; uniform mat4 mtxMdl; uniform mat4 mtxCam; void main(){ normal = vNormal; color = vColor; position = vPosition; gl_Position = mtxMdl * mtxCam * vec4(vPosition.xyz, 1.0); }"); defaultShaderProgram = new ShaderProgram(defaultFrag, defaultVert); solidColorShaderProgram = new ShaderProgram(solidColorFrag, solidColorVert); } public override void Prepare(GL_ControlLegacy control) { string pathFrag = System.IO.Path.Combine(Runtime.ExecutableDir, "Shader", "Legacy") + "\\KCL.frag"; string pathVert = System.IO.Path.Combine(Runtime.ExecutableDir, "Shader", "Legacy") + "\\KCL.vert"; var defaultFrag = new FragmentShader(File.ReadAllText(pathFrag)); var defaultVert = new VertexShader(File.ReadAllText(pathVert)); var solidColorFrag = new FragmentShader( @"#version 330 uniform vec4 color; out vec4 FragColor; void main(){ FragColor = color; }"); var solidColorVert = new VertexShader( @"#version 330 in vec3 vPosition; in vec3 vNormal; in vec3 vColor; out vec3 normal; out vec3 color; out vec3 position; void main(){ normal = vNormal; color = vColor; position = vPosition; gl_Position = mvpMatrix * vec4(vPosition.xyz, 1.0); }"); defaultShaderProgram = new ShaderProgram(defaultFrag, defaultVert); solidColorShaderProgram = new ShaderProgram(solidColorFrag, solidColorVert); } private void CheckBuffers() { if (!Runtime.OpenTKInitialized) return; bool buffersWereInitialized = ibo_elements != 0 && vbo_position != 0; if (!buffersWereInitialized) { GenerateBuffers(); UpdateVertexData(); } } public override void Draw(GL_ControlLegacy control, Pass pass) { CheckBuffers(); if (!Runtime.OpenTKInitialized) return; } public override void Draw(GL_ControlModern control, Pass pass) { CheckBuffers(); if (!Runtime.OpenTKInitialized) return; control.CurrentShader = defaultShaderProgram; // control.UpdateModelMatrix( // Matrix4.CreateScale(Runtime.previewScale) * // Matrix4.CreateTranslation(Selected ? editorScene.CurrentAction.NewPos(position) : position)); SetRenderSettings(defaultShaderProgram); Matrix4 camMat = control.ModelMatrix * control.CameraMatrix * control.ProjectionMatrix; GL.Disable(EnableCap.CullFace); GL.Uniform3(defaultShaderProgram["difLightDirection"], Vector3.TransformNormal(new Vector3(0f, 0f, -1f), camMat.Inverted()).Normalized()); GL.Uniform3(defaultShaderProgram["difLightColor"], new Vector3(1)); GL.Uniform3(defaultShaderProgram["ambLightColor"], new Vector3(1)); defaultShaderProgram.EnableVertexAttributes(); foreach (KCLModel mdl in models) { DrawModel(mdl, defaultShaderProgram); } defaultShaderProgram.DisableVertexAttributes(); GL.UseProgram(0); GL.Disable(EnableCap.DepthTest); GL.Enable(EnableCap.DepthTest); GL.Enable(EnableCap.CullFace); } private void SetRenderSettings(ShaderProgram shader) { shader.SetBoolToInt("renderVertColor", Runtime.renderVertColor); GL.Uniform1(defaultShaderProgram["renderType"], (int)Runtime.viewportShading); } private void DrawModel(KCLModel m, ShaderProgram shader, bool drawSelection = false) { if (m.faces.Count <= 3) return; SetVertexAttributes(m, shader); if (m.Checked) { if ((m.IsSelected)) { DrawModelSelection(m, shader); } else { if (Runtime.RenderModelWireframe) { DrawModelWireframe(m, shader); } if (Runtime.RenderModels) { GL.DrawElements(PrimitiveType.Triangles, m.displayFaceSize, DrawElementsType.UnsignedInt, m.Offset); } } } } private static void DrawModelSelection(KCLModel p, ShaderProgram shader) { //This part needs to be reworked for proper outline. Currently would make model disappear GL.DrawElements(PrimitiveType.Triangles, p.displayFaceSize, DrawElementsType.UnsignedInt, p.Offset); GL.Enable(EnableCap.StencilTest); // use vertex color for wireframe color GL.Uniform1(shader["colorOverride"], 1); GL.PolygonMode(MaterialFace.Front, PolygonMode.Line); GL.Enable(EnableCap.LineSmooth); GL.LineWidth(1.5f); GL.DrawElements(PrimitiveType.Triangles, p.displayFaceSize, DrawElementsType.UnsignedInt, p.Offset); GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill); GL.Uniform1(shader["colorOverride"], 0); GL.Enable(EnableCap.DepthTest); } private void SetVertexAttributes(KCLModel m, ShaderProgram shader) { GL.BindBuffer(BufferTarget.ArrayBuffer, vbo_position); GL.VertexAttribPointer(shader.GetAttribute("vPosition"), 3, VertexAttribPointerType.Float, false, DisplayVertex.Size, 0); GL.VertexAttribPointer(shader.GetAttribute("vNormal"), 3, VertexAttribPointerType.Float, false, DisplayVertex.Size, 12); GL.VertexAttribPointer(shader.GetAttribute("vColor"), 3, VertexAttribPointerType.Float, false, DisplayVertex.Size, 24); GL.BindBuffer(BufferTarget.ElementArrayBuffer, ibo_elements); } private static void DrawModelWireframe(KCLModel p, ShaderProgram shader) { // use vertex color for wireframe color GL.Uniform1(shader["colorOverride"], 1); GL.PolygonMode(MaterialFace.Front, PolygonMode.Line); GL.Enable(EnableCap.LineSmooth); GL.LineWidth(1.5f); GL.DrawElements(PrimitiveType.Triangles, p.displayFaceSize, DrawElementsType.UnsignedInt, p.Offset); GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill); GL.Uniform1(shader["colorOverride"], 0); } /* public override BoundingBox GetSelectionBox() { Vector3 Min = new Vector3(0); Vector3 Max = new Vector3(0); foreach (var model in models) { foreach (var vertex in model.vertices) { Min.X = Math.Min(Min.X, vertex.pos.X); Min.Y = Math.Min(Min.Y, vertex.pos.Y); Min.Z = Math.Min(Min.Z, vertex.pos.Z); Max.X = Math.Max(Max.X, vertex.pos.X); Max.Y = Math.Max(Max.Y, vertex.pos.Y); Max.Z = Math.Max(Max.Z, vertex.pos.Z); } } return new BoundingBox() { minX = Min.X, minY = Min.Y, minZ = Min.Z, maxX = Max.X, maxY = Max.Y, maxZ = Max.Z, }; } public override LocalOrientation GetLocalOrientation(int partIndex) { return new LocalOrientation(position); } public override bool TryStartDragging(DragActionType actionType, int hoveredPart, out LocalOrientation localOrientation, out bool dragExclusively) { localOrientation = new LocalOrientation(position); dragExclusively = false; return Selected; } public override bool IsInRange(float range, float rangeSquared, Vector3 pos) { range = 20000; //Make the range large for now. Todo go back to this BoundingBox box = GetSelectionBox(); if (pos.X < box.maxX + range && pos.X > box.minX - range && pos.Y < box.maxY + range && pos.Y > box.minY - range && pos.Z < box.maxZ + range && pos.Z > box.minZ - range) return true; return false; } public override uint SelectAll(GL_ControlBase control) { Selected = true; return REDRAW; } public override uint SelectDefault(GL_ControlBase control) { Selected = true; return REDRAW; } public override uint Select(int partIndex, GL_ControlBase control) { Selected = true; return REDRAW; } public override uint Deselect(int partIndex, GL_ControlBase control) { Selected = false; return REDRAW; } public override uint DeselectAll(GL_ControlBase control) { Selected = false; return REDRAW; } public override Vector3 Position { get { return position; } set { position = value; } }*/ } //Convert KCL lib vec3 to opentk one so i can use the cross and dot methods public static Vector3 Vec3D_To_Vec3(System.Windows.Media.Media3D.Vector3D v) { return new Vector3((float)v.X, (float)v.Y, (float)v.Z); } public struct DisplayVertex { // Used for rendering. public Vector3 pos; public Vector3 nrm; public Vector3 col; public static int Size = 4 * (3 + 3 + 3); } public class KCLModel : STGenericObject { public KCLModel() { ImageKey = "mesh"; SelectedImageKey = "mesh"; Checked = true; } public int[] display; public int Offset; // For Rendering public int strip = 0x40; public int displayFaceSize = 0; public class Face : TreeNode { public int MaterialFlag = 0; } public List CreateDisplayVertices() { // rearrange faces display = getDisplayFace().ToArray(); List displayVertList = new List(); if (faces.Count <= 3) return displayVertList; foreach (Vertex v in vertices) { DisplayVertex displayVert = new DisplayVertex() { pos = v.pos, nrm = v.nrm, col = v.col.Xyz, }; displayVertList.Add(displayVert); } return displayVertList; } public List getDisplayFace() { if ((strip >> 4) == 4) { displayFaceSize = faces.Count; return faces; } else { List f = new List(); int startDirection = 1; int p = 0; int f1 = faces[p++]; int f2 = faces[p++]; int faceDirection = startDirection; int f3; do { f3 = faces[p++]; if (f3 == 0xFFFF) { f1 = faces[p++]; f2 = faces[p++]; faceDirection = startDirection; } else { faceDirection *= -1; if ((f1 != f2) && (f2 != f3) && (f3 != f1)) { if (faceDirection > 0) { f.Add(f3); f.Add(f2); f.Add(f1); } else { f.Add(f2); f.Add(f3); f.Add(f1); } } f1 = f2; f2 = f3; } } while (p < faces.Count); displayFaceSize = f.Count; return f; } } } } }