Exemplo n.º 1
0
        /// <summary>
        /// Parses and loads a line from an OBJ file.
        /// Currently only supports V, VT, F and MTLLIB prefixes
        /// </summary>
        private void processLine2(string line)
        {
            string[] parts        = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            gf       CurrentGroup = Objects[Objects.Count - 1].groups[Objects[Objects.Count - 1].groups.Count - 1];

            if (parts.Length > 0)
            {
                switch (parts[0])
                {
                case "usemtl":
                    UseMtl = parts[1];
                    break;

                case "mtllib":
                    Mtl = parts[1];
                    break;

                case "v":
                    Vertex v = new Vertex();
                    v.LoadFromStringArray(parts);
                    VertexList.Add(v);
                    v.Index = VertexList.Count();
                    //CurrentGroup.vertexList.Add(v);
                    //v.Index = CurrentGroup.vertexList.Count();
                    break;

                case "f":
                    Face f = new Face();
                    f.LoadFromStringArray(parts);
                    f.UseMtl = UseMtl;
                    //FaceList.Add(f);
                    GroupFaces[GroupFaces.Count - 1].faces.Add(f);
                    break;

                case "vt":
                    TextureVertex vt = new TextureVertex();
                    vt.LoadFromStringArray(parts);
                    TextureList.Add(vt);
                    vt.Index = TextureList.Count();
                    break;

                case "g":
                    if (gVerified)
                    {
                        GroupFaces.Add(new gf());
                    }
                    else
                    {
                        gVerified = true;
                    }
                    GroupFaces[GroupFaces.Count - 1].name = parts[1];

                    break;

                case "o":
                    //objects and groups are usually considered indetical, however objects in T2T are used to represent shapes, while groups are used to represent primitives
                    //when an o is encountered, we create a new o into the object list and set our global o pointer to the newly made o
                    //when we do the import, a group faces is a primitive so we can loop through all o's(shapes) and get all GroupFaces(primitives)
                    //there is always a default group 0, and if the user imports an obj with no groups or objects, we just push them all into object 0 group 0
                    if (oVerified)
                    {
                        Objects.Add(new obj());
                    }
                    else
                    {
                        oVerified = true;
                    }
                    Objects[Objects.Count - 1].name = parts[1];
                    Objects[Objects.Count - 1].groups.Add(GroupFaces[GroupFaces.Count - 1]);
                    break;
                }
            }
        }
Exemplo n.º 2
0
        /// <summary>
        /// Parses and loads a line from an OBJ file.
        /// Currently only supports V, VT, F and MTLLIB prefixes
        /// </summary>
        private void processLine(string line)
        {
            string[] parts = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            if (parts.Length > 0)
            {
                switch (parts[0])
                {
                case "usemtl":
                    UseMtl = parts[1];
                    if (CurrentGroup == null)
                    {
                        GroupFaces.Add(new gf());
                        CurrentGroup      = GroupFaces[GroupFaces.Count - 1];
                        CurrentGroup.name = parts[1];
                        CurrentObject.groups.Add(CurrentGroup);
                    }
                    CurrentGroup.materialName = UseMtl;
                    break;

                case "mtllib":
                    Mtl = parts[1];
                    if (Mtl.IndexOf("\\") == -1)
                    {
                        Mtl = Path.GetDirectoryName(ObjPath) + "\\" + Mtl;
                    }
                    break;

                case "o":
                    //check if we dont already have an active object, aka we arent on the first one
                    if (oVerified)
                    {
                        Objects.Add(new obj());
                    }
                    else
                    {
                        oVerified = true;
                    }
                    //set global to updated object
                    CurrentObject      = Objects[Objects.Count() - 1];
                    CurrentObject.name = parts[1];
                    //now any new v, vt, f or g will be added into this object
                    break;

                case "v":
                    Vertex v = new Vertex();
                    v.LoadFromStringArray(parts);
                    //VertexList.Add(v);
                    //v.Index = VertexList.Count();
                    //because we are now doing it my way, we only add to the current object
                    CurrentObject.vertexList.Add(v);
                    break;

                case "vt":
                    TextureVertex vt = new TextureVertex();
                    vt.LoadFromStringArray(parts);
                    CurrentObject.textureList.Add(vt);
                    break;

                case "g":
                    if (gVerified)
                    {
                        GroupFaces.Add(new gf());
                    }
                    else
                    {
                        gVerified = true;
                    }
                    CurrentGroup      = GroupFaces[GroupFaces.Count - 1];
                    CurrentGroup.name = parts[1];
                    CurrentObject.groups.Add(CurrentGroup);
                    break;

                case "f":
                    Face f = new Face();
                    f.LoadFromStringArray(parts);
                    f.UseMtl = UseMtl;
                    //FaceList.Add(f);
                    CurrentGroup.faces.Add(f);
                    break;
                }
            }
        }