コード例 #1
0
        public VertexBufferObject(Mesh[] meshes)
        {
            List<Vertex> vertices = new List<Vertex>();
            List<int> indices = new List<int>();
            foreach (Mesh m in meshes)
            {
                foreach (Face f in m.Faces)
                {
                    for (int i = 0; i < f.vIndices.Length; i++)
                    {
                        Vertex v = new Vertex();
                        v.Position = m.Vertices[(int)f.vIndices[i]];
                        v.Normal = m.Normals[(int)f.nIndices[i]];
                        v.TextureCoordinate = m.TexCoords[(int)f.tIndices[i]];

                        vertices.Add(v);
                        indices.Add(vertices.Count - 1);
                    }
                }
            }
            ids = new int[2];
            GL.GenBuffers(2, ids);

            GL.BindBuffer(BufferTarget.ArrayBuffer,ids[0]);
            GL.BufferData(BufferTarget.ArrayBuffer, new IntPtr(Vertex.SizeInBytes*vertices.Count), vertices.ToArray(), BufferUsageHint.StaticDraw);
            GL.BindBuffer(BufferTarget.ArrayBuffer, 0);

            GL.BindBuffer(BufferTarget.ElementArrayBuffer, ids[1]);
            GL.BufferData(BufferTarget.ElementArrayBuffer, new IntPtr(sizeof(int) * indices.Count), indices.ToArray(), BufferUsageHint.StaticDraw);
            GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
            elemets = indices.Count / 3;
        }
コード例 #2
0
 public VertexBufferObject(Mesh mesh)
     : this(new Mesh[] { mesh })
 {
 }
コード例 #3
0
ファイル: OBJLoader.cs プロジェクト: Caerostris/SimProvider
        public static Mesh[] loadModelfromOBJ(string path)
        {
            if (!File.Exists(path))
                return null;

            System.IO.StreamReader sr = new StreamReader(path);

            List<Mesh> meshes = new List<Mesh>();
            List<Vector3> vertices = new List<Vector3>();
            List<Vector3> normals = new List<Vector3>();
            List<Vector2> texCoords = new List<Vector2>();
            //List<Face> faces = new List<Face>();

            while (!sr.EndOfStream)
            {
                string[] s = sr.ReadLine().Split(' ');
                Mesh m = null;
                if (meshes.Count > 0)
                    m = meshes[meshes.Count - 1];
                switch (s[0])
                {
                    case "o":
                        if(meshes.Count > 0){
                            m.Vertices.AddRange(vertices);
                            m.Normals.AddRange(normals);
                            m.TexCoords.AddRange(texCoords);
                            }
                        meshes.Add(new Mesh());
                        meshes[meshes.Count - 1].Name = s[1];
                        break;
                    case "g":
                        m = new Mesh();
                        m.Name = s[1];
                        meshes.Add(m);
                        break;
                    case "v":
                        vertices.Add(new Vector3(Single.Parse(s[1], CultureInfo.InvariantCulture), Single.Parse(s[2], CultureInfo.InvariantCulture), Single.Parse(s[3], CultureInfo.InvariantCulture)));
                        break;
                    case "vn":
                        normals.Add(new Vector3(Single.Parse(s[1], CultureInfo.InvariantCulture), Single.Parse(s[2], CultureInfo.InvariantCulture), Single.Parse(s[3], CultureInfo.InvariantCulture)));
                        break;
                    case "vt":
                        texCoords.Add(new Vector2(Single.Parse(s[1], CultureInfo.InvariantCulture), Single.Parse(s[2], CultureInfo.InvariantCulture)));
                        break;
                    case "f":
                        uint[] vI = new uint[] { UInt32.Parse(s[1].Split('/')[0], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[2].Split('/')[0], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[3].Split('/')[0], CultureInfo.InvariantCulture) - 1 };
                        uint[] nI = new uint[] { 0, 0, 0 };
                        uint[] tI = new uint[] { 0, 0, 0 };
                        if (texCoords.Count > 0)
                        {
                            tI = new uint[] { UInt32.Parse(s[1].Split('/')[1], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[2].Split('/')[1], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[3].Split('/')[1], CultureInfo.InvariantCulture) - 1 };
                            if (normals.Count > 0)
                            {
                                nI = new uint[] { UInt32.Parse(s[1].Split('/')[2], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[2].Split('/')[2], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[3].Split('/')[2], CultureInfo.InvariantCulture) - 1 };
                            }

                        }
                        else if (normals.Count > 0)
                        {
                            nI = new uint[] { UInt32.Parse(s[1].Split('/')[1], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[2].Split('/')[1], CultureInfo.InvariantCulture) - 1, UInt32.Parse(s[3].Split('/')[1], CultureInfo.InvariantCulture) - 1 };
                        }
                        m.Faces.Add(new Face(vI, nI, tI));
                        break;
                    default:
                        break;
                }
            }
            if (meshes.Count > 0)
            {
                meshes[meshes.Count - 1].Vertices.AddRange(vertices);
                meshes[meshes.Count - 1].Normals.AddRange(normals);
                meshes[meshes.Count - 1].TexCoords.AddRange(texCoords);
            }
            return meshes.ToArray();
        }