Пример #1
0
        public static ModelData ReadModelData(Stream stream)
        {
            EngineBinaryReader engineBinaryReader = new EngineBinaryReader(stream, false);
            ModelData          modelData          = new ModelData();

            modelData.Bones.Capacity = engineBinaryReader.ReadInt32();
            for (int i = 0; i < modelData.Bones.Capacity; i++)
            {
                ModelBoneData modelBoneData = new ModelBoneData();
                modelData.Bones.Add(modelBoneData);
                modelBoneData.ParentBoneIndex = engineBinaryReader.ReadInt32();
                modelBoneData.Name            = engineBinaryReader.ReadString();
                modelBoneData.Transform       = engineBinaryReader.ReadMatrix();
            }



            modelData.Meshes.Capacity = engineBinaryReader.ReadInt32();
            for (int j = 0; j < modelData.Meshes.Capacity; j++)
            {
                ModelMeshData modelMeshData = new ModelMeshData();
                modelData.Meshes.Add(modelMeshData);
                modelMeshData.ParentBoneIndex    = engineBinaryReader.ReadInt32();
                modelMeshData.Name               = engineBinaryReader.ReadString();
                modelMeshData.MeshParts.Capacity = engineBinaryReader.ReadInt32();
                modelMeshData.BoundingBox        = engineBinaryReader.ReadBoundingBox();
                for (int k = 0; k < modelMeshData.MeshParts.Capacity; k++)
                {
                    ModelMeshPartData modelMeshPartData = new ModelMeshPartData();
                    modelMeshData.MeshParts.Add(modelMeshPartData);
                    modelMeshPartData.BuffersDataIndex = engineBinaryReader.ReadInt32();
                    modelMeshPartData.StartIndex       = engineBinaryReader.ReadInt32();
                    modelMeshPartData.IndicesCount     = engineBinaryReader.ReadInt32();
                    modelMeshPartData.BoundingBox      = engineBinaryReader.ReadBoundingBox();
                }
            }



            modelData.Buffers.Capacity = engineBinaryReader.ReadInt32();
            for (int l = 0; l < modelData.Buffers.Capacity; l++)
            {
                ModelBuffersData modelBuffersData = new ModelBuffersData();
                modelData.Buffers.Add(modelBuffersData);
                VertexElement[] array = new VertexElement[engineBinaryReader.ReadInt32()];
                for (int m = 0; m < array.Length; m++)
                {
                    array[m] = new VertexElement(engineBinaryReader.ReadInt32(), (VertexElementFormat)engineBinaryReader.ReadInt32(), engineBinaryReader.ReadString());
                }
                modelBuffersData.VertexDeclaration = new VertexDeclaration(array);
                modelBuffersData.Vertices          = engineBinaryReader.ReadBytes(engineBinaryReader.ReadInt32());
                modelBuffersData.Indices           = engineBinaryReader.ReadBytes(engineBinaryReader.ReadInt32());
            }



            return(modelData);
        }
Пример #2
0
        static ModelMeshData LoadGeometry(ModelData data, ModelBoneData parentBoneData, ColladaGeometry geometry)
        {
            ModelMeshData modelMeshData = new ModelMeshData();

            data.Meshes.Add(modelMeshData);
            modelMeshData.Name            = parentBoneData.Name;
            modelMeshData.ParentBoneIndex = data.Bones.IndexOf(parentBoneData);
            bool flag = false;

            foreach (ColladaPolygons current in geometry.Mesh.Polygons)
            {
                ModelMeshPartData modelMeshPartData = LoadPolygons(data, current);
                modelMeshData.MeshParts.Add(modelMeshPartData);
                modelMeshData.BoundingBox = (flag ? BoundingBox.Union(modelMeshData.BoundingBox, modelMeshPartData.BoundingBox) : modelMeshPartData.BoundingBox);
                flag = true;
            }
            return(modelMeshData);
        }
Пример #3
0
        XElement GetGeometry(ModelData model, ModelMeshData data)
        {
            ModelMeshPartData meshPart = data.MeshParts[0];
            ModelBoneData     boneData = model.Bones[data.ParentBoneIndex];
            string            meshId   = data.Name;

            var vertexBuffer      = model.Buffers[meshPart.BuffersDataIndex];
            int count             = meshPart.IndicesCount;
            var vertexDeclaration = vertexBuffer.VertexDeclaration;

            byte[] original = new byte[count * 32];
            using (BinaryReader reader = new BinaryReader(new MemoryStream(vertexBuffer.Indices)))
            {
                reader.BaseStream.Position = meshPart.StartIndex * 2;
                for (int i = 0; i < count; i++)
                {
                    short index = reader.ReadInt16();
                    Buffer.BlockCopy(vertexBuffer.Vertices, index * 32, original, i * 32, 32);
                }
            }

            List <Vector3> vertices = new List <Vector3>();
            List <Vector3> normals  = new List <Vector3>();

            float[] textureCord = new float[count * 2];
            int[]   indexs      = new int[count * 3];
            using (EngineBinaryReader reader = new EngineBinaryReader(new MemoryStream(original)))
            {
                foreach (VertexElement elem in vertexDeclaration.VertexElements)
                {
                    if (elem.Semantic.StartsWith("POSITION"))
                    {
                        Vector3[] triangle = new Vector3[3];
                        for (int i = 0; i < count; i++)
                        {
                            reader.BaseStream.Position = vertexDeclaration.VertexStride * i + elem.Offset;
                            var p = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
                            if (!vertices.Contains(p))
                            {
                                vertices.Add(p);
                            }
                            var ii = i % 3;
                            triangle[ii] = p;
                            if (ii == 2)
                            {
                                indexs[i * 3 - 6] = vertices.IndexOf(triangle[0]);
                                indexs[i * 3 - 3] = vertices.IndexOf(triangle[2]);
                                indexs[i * 3]     = vertices.IndexOf(triangle[1]);
                            }
                        }
                    }
                    else if (elem.Semantic.StartsWith("NORMAL"))
                    {
                        Vector3[] triangle = new Vector3[3];
                        for (int i = 0; i < count; i++)
                        {
                            reader.BaseStream.Position = vertexDeclaration.VertexStride * i + elem.Offset;
                            var p = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
                            if (!normals.Contains(p))
                            {
                                normals.Add(p);
                            }
                            var ii = i % 3;
                            triangle[ii] = p;
                            if (ii == 2)
                            {
                                indexs[i * 3 - 5] = normals.IndexOf(triangle[0]);
                                indexs[i * 3 - 2] = normals.IndexOf(triangle[2]);
                                indexs[i * 3 + 1] = normals.IndexOf(triangle[1]);
                            }
                        }
                    }
                    else if (elem.Semantic.StartsWith("TEXCOORD"))
                    {
                        for (int i = 0; i < count; i++)
                        {
                            reader.BaseStream.Position = vertexDeclaration.VertexStride * i + elem.Offset;
                            textureCord[i * 2]         = reader.ReadSingle();
                            textureCord[i * 2 + 1]     = 1f - reader.ReadSingle();
                            if (i % 3 == 2)
                            {
                                indexs[i * 3 - 4] = i - 2;
                                indexs[i * 3 - 1] = i;
                                indexs[i * 3 + 2] = i - 1;
                            }
                        }
                    }
                }
            }

            XElement positionSource;

            XElement normalSource;

            XElement texturecoorSource;

            XElement vertexSource;

            XElement meshElem = new XElement(
                colladaNS + "mesh",
                positionSource = GetSourceArray(
                    meshId,
                    "-mesh-positions",
                    string.Join(" ", vertices.ConvertAll(v => string.Format("{0} {1} {2}", v.X.ToString("R"), v.Y.ToString("R"), v.Z.ToString("R")))),
                    vertices.Count * 3,
                    3,
                    XYZParam()
                    ),
                normalSource = GetSourceArray(
                    meshId,
                    "-mesh-normals",
                    string.Join(" ", normals.ConvertAll(v => string.Format("{0} {1} {2}", v.X.ToString("R"), v.Y.ToString("R"), v.Z.ToString("R")))),
                    normals.Count * 3,
                    3,
                    XYZParam()
                    ),
                texturecoorSource = GetSourceArray(
                    meshId,
                    "-mesh-map",
                    string.Join(" ", textureCord.Select(f => f.ToString("R"))),
                    textureCord.Length,
                    2,
                    STParam()
                    ),
                vertexSource = new XElement(
                    colladaNS + "vertices",
                    new XAttribute("id", meshId + "-mesh-vertices"),
                    GetInput("POSITION", positionSource)
                    ),
                new XElement(
                    colladaNS + "triangles",
                    new XAttribute("count", count / 3),
                    GetInput("VERTEX", vertexSource, 0),
                    GetInput("NORMAL", normalSource, 1),
                    GetInput("TEXCOORD", texturecoorSource, 2),
                    new XElement(colladaNS + "p", string.Join(" ", indexs))
                    )
                );

            XElement geometry;

            root.Element(colladaNS + "library_geometries").Add(
                geometry = new XElement(
                    colladaNS + "geometry",
                    new XAttribute("id", meshId + "-mesh"),
                    new XAttribute("name", meshId),
                    meshElem
                    )
                );

            return(geometry);
        }
Пример #4
0
        static ModelMeshPartData LoadPolygons(ModelData data, ColladaPolygons polygons)
        {
            c__DisplayClass3_0 c__DisplayClass3_ = new c__DisplayClass3_0();
            ModelMeshPartData  modelMeshPartData = new ModelMeshPartData();
            int num = 0;
            Dictionary <VertexElement, ColladaInput> dictionary = new Dictionary <VertexElement, ColladaInput>();

            foreach (ColladaInput current in polygons.Inputs)
            {
                string str = (current.Set == 0) ? string.Empty : current.Set.ToString(CultureInfo.InvariantCulture);
                if (current.Semantic == "POSITION")
                {
                    dictionary[new VertexElement(num, VertexElementFormat.Vector3, "POSITION" + str)] = current;
                    num += 12;
                }
                else if (current.Semantic == "NORMAL")
                {
                    dictionary[new VertexElement(num, VertexElementFormat.Vector3, "NORMAL" + str)] = current;
                    num += 12;
                }
                else if (current.Semantic == "TEXCOORD")
                {
                    dictionary[new VertexElement(num, VertexElementFormat.Vector2, "TEXCOORD" + str)] = current;
                    num += 8;
                }
                else if (current.Semantic == "COLOR")
                {
                    dictionary[new VertexElement(num, VertexElementFormat.NormalizedByte4, "COLOR" + str)] = current;
                    num += 4;
                }
            }
            c__DisplayClass3_.vertexDeclaration = new VertexDeclaration(dictionary.Keys.ToArray <VertexElement>());
            ModelBuffersData modelBuffersData = data.Buffers.FirstOrDefault(new Func <ModelBuffersData, bool>(c__DisplayClass3_.b__0));

            if (modelBuffersData == null)
            {
                modelBuffersData = new ModelBuffersData();
                data.Buffers.Add(modelBuffersData);
                modelBuffersData.VertexDeclaration = c__DisplayClass3_.vertexDeclaration;
            }
            modelMeshPartData.BuffersDataIndex = data.Buffers.IndexOf(modelBuffersData);
            int        num2 = polygons.P.Count / polygons.InputCount;
            List <int> list = new List <int>();

            if (polygons.VCount.Count == 0)
            {
                int num3 = 0;
                for (int i = 0; i < num2 / 3; i++)
                {
                    list.Add(num3);
                    list.Add(num3 + 2);
                    list.Add(num3 + 1);
                    num3 += 3;
                }
            }
            else
            {
                int num4 = 0;
                foreach (int current2 in polygons.VCount)
                {
                    if (current2 == 3)
                    {
                        list.Add(num4);
                        list.Add(num4 + 2);
                        list.Add(num4 + 1);
                        num4 += 3;
                    }
                    else
                    {
                        if (current2 != 4)
                        {
                            throw new NotSupportedException("Collada polygons with less than 3 or more than 4 vertices are not supported.");
                        }
                        list.Add(num4);
                        list.Add(num4 + 2);
                        list.Add(num4 + 1);
                        list.Add(num4 + 2);
                        list.Add(num4);
                        list.Add(num4 + 3);
                        num4 += 4;
                    }
                }
            }
            int vertexStride = modelBuffersData.VertexDeclaration.VertexStride;
            int num5         = modelBuffersData.Vertices.Length;

            modelBuffersData.Vertices = ExtendArray <byte>(modelBuffersData.Vertices, list.Count * vertexStride);
            using (BinaryWriter binaryWriter = new BinaryWriter(new MemoryStream(modelBuffersData.Vertices, num5, list.Count * vertexStride)))
            {
                bool flag = false;
                foreach (KeyValuePair <VertexElement, ColladaInput> current3 in dictionary)
                {
                    VertexElement key   = current3.Key;
                    ColladaInput  value = current3.Value;
                    if (key.Semantic.StartsWith("POSITION"))
                    {
                        for (int j = 0; j < list.Count; j++)
                        {
                            float[] arg_3EF_0 = value.Source.Accessor.Source.Array;
                            int     offset    = value.Source.Accessor.Offset;
                            int     stride    = value.Source.Accessor.Stride;
                            int     num6      = polygons.P[list[j] * polygons.InputCount + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(j * vertexStride + key.Offset);
                            float num7 = arg_3EF_0[offset + stride * num6];
                            float num8 = arg_3EF_0[offset + stride * num6 + 1];
                            float num9 = arg_3EF_0[offset + stride * num6 + 2];
                            modelMeshPartData.BoundingBox = (flag ? BoundingBox.Union(modelMeshPartData.BoundingBox, new Vector3(num7, num8, num9)) : new BoundingBox(num7, num8, num9, num7, num8, num9));
                            flag = true;
                            binaryWriter.Write(num7);
                            binaryWriter.Write(num8);
                            binaryWriter.Write(num9);
                        }
                    }
                    else if (key.Semantic.StartsWith("NORMAL"))
                    {
                        for (int k = 0; k < list.Count; k++)
                        {
                            float[] arg_51E_0 = value.Source.Accessor.Source.Array;
                            int     offset2   = value.Source.Accessor.Offset;
                            int     stride2   = value.Source.Accessor.Stride;
                            int     num10     = polygons.P[list[k] * polygons.InputCount + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(k * vertexStride + key.Offset);
                            float num11 = arg_51E_0[offset2 + stride2 * num10];
                            float num12 = arg_51E_0[offset2 + stride2 * num10 + 1];
                            float num13 = arg_51E_0[offset2 + stride2 * num10 + 2];
                            float num14 = 1f / MathUtils.Sqrt(num11 * num11 + num12 * num12 + num13 * num13);
                            binaryWriter.Write(num14 * num11);
                            binaryWriter.Write(num14 * num12);
                            binaryWriter.Write(num14 * num13);
                        }
                    }
                    else if (key.Semantic.StartsWith("TEXCOORD"))
                    {
                        for (int l = 0; l < list.Count; l++)
                        {
                            float[] array   = value.Source.Accessor.Source.Array;
                            int     offset3 = value.Source.Accessor.Offset;
                            int     stride3 = value.Source.Accessor.Stride;
                            int     num15   = polygons.P[list[l] * polygons.InputCount + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(l * vertexStride + key.Offset);
                            binaryWriter.Write(array[offset3 + stride3 * num15]);
                            binaryWriter.Write(1f - array[offset3 + stride3 * num15 + 1]);
                        }
                    }
                    else
                    {
                        if (!key.Semantic.StartsWith("COLOR"))
                        {
                            throw new Exception();
                        }
                        for (int m = 0; m < list.Count; m++)
                        {
                            float[] array2  = value.Source.Accessor.Source.Array;
                            int     offset4 = value.Source.Accessor.Offset;
                            int     stride4 = value.Source.Accessor.Stride;
                            int     num16   = polygons.P[list[m] * polygons.InputCount + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(m * vertexStride + key.Offset);
                            Color color = new Color(array2[offset4 + stride4 * num16], array2[offset4 + stride4 * num16 + 1], array2[offset4 + stride4 * num16 + 2], array2[offset4 + stride4 * num16 + 3]);
                            binaryWriter.Write(color.PackedValue);
                        }
                    }
                }
            }
            modelMeshPartData.StartIndex   = num5 / vertexStride;
            modelMeshPartData.IndicesCount = list.Count;
            return(modelMeshPartData);
        }