Ejemplo n.º 1
0
        public static ModelData Load(Stream stream)
        {
            ModelData modelData = new ModelData();

            Collada.ColladaRoot colladaRoot = new Collada.ColladaRoot(XElement.Load(stream));
            if (colladaRoot.Scene.VisualScene.Nodes.Count > 1)
            {
                ModelBoneData modelBoneData = new ModelBoneData();
                modelData.Bones.Add(modelBoneData);
                modelBoneData.ParentBoneIndex = -1;
                modelBoneData.Name            = string.Empty;
                modelBoneData.Transform       = Matrix.Identity;
                using (List <Collada.ColladaNode> .Enumerator enumerator = colladaRoot.Scene.VisualScene.Nodes.GetEnumerator())
                {
                    while (enumerator.MoveNext())
                    {
                        Collada.ColladaNode node = enumerator.Current;
                        Collada.LoadNode(modelData, modelBoneData, node, Matrix.CreateScale(colladaRoot.Asset.Meter));
                    }
                    goto IL_104;
                }
            }
            foreach (Collada.ColladaNode node2 in colladaRoot.Scene.VisualScene.Nodes)
            {
                Collada.LoadNode(modelData, null, node2, Matrix.CreateScale(colladaRoot.Asset.Meter));
            }
IL_104:
            foreach (ModelBuffersData modelBuffersData in modelData.Buffers)
            {
                Collada.IndexVertices(modelBuffersData.VertexDeclaration.VertexStride, modelBuffersData.Vertices, out modelBuffersData.Vertices, out modelBuffersData.Indices);
            }
            return(modelData);
        }
Ejemplo n.º 2
0
        private static ModelMeshData LoadGeometry(ModelData data, ModelBoneData parentBoneData, Collada.ColladaGeometry geometry)
        {
            ModelMeshData modelMeshData = new ModelMeshData();

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

            foreach (Collada.ColladaPolygons polygons in geometry.Mesh.Polygons)
            {
                ModelMeshPartData modelMeshPartData = Collada.LoadPolygons(data, polygons);
                modelMeshData.MeshParts.Add(modelMeshPartData);
                modelMeshData.BoundingBox = (flag ? BoundingBox.Union(modelMeshData.BoundingBox, modelMeshPartData.BoundingBox) : modelMeshPartData.BoundingBox);
                flag = true;
            }
            return(modelMeshData);
        }
Ejemplo n.º 3
0
        private static ModelBoneData LoadNode(ModelData data, ModelBoneData parentBoneData, Collada.ColladaNode node, Matrix transform)
        {
            ModelBoneData modelBoneData = new ModelBoneData();

            data.Bones.Add(modelBoneData);
            modelBoneData.ParentBoneIndex = ((parentBoneData != null) ? data.Bones.IndexOf(parentBoneData) : -1);
            modelBoneData.Name            = node.Name;
            modelBoneData.Transform       = node.Transform * transform;
            foreach (Collada.ColladaNode node2 in node.Nodes)
            {
                Collada.LoadNode(data, modelBoneData, node2, Matrix.Identity);
            }
            foreach (Collada.ColladaGeometry geometry in node.Geometries)
            {
                Collada.LoadGeometry(data, modelBoneData, geometry);
            }
            return(modelBoneData);
        }
Ejemplo n.º 4
0
        private static void SCModelWriter(MemoryStream memoryStream, FileStream fileStream)
        {
            ModelData modelData = Collada.Load(fileStream);

            ModelContentWriter.Write(memoryStream, modelData, Vector3.One);
        }
Ejemplo n.º 5
0
        private static ModelMeshPartData LoadPolygons(ModelData data, Collada.ColladaPolygons polygons)
        {
            ModelMeshPartData modelMeshPartData = new ModelMeshPartData();
            int num = 0;
            Dictionary <VertexElement, Collada.ColladaInput> dictionary = new Dictionary <VertexElement, Collada.ColladaInput>();

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

            if (modelBuffersData == null)
            {
                modelBuffersData = new ModelBuffersData();
                data.Buffers.Add(modelBuffersData);
                modelBuffersData.VertexDeclaration = vertexDeclaration;
            }
            modelMeshPartData.BuffersDataIndex = data.Buffers.IndexOf(modelBuffersData);
            int        num2 = polygons.P.Count / polygons.Inputs.Count;
            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 num5 in polygons.VCount)
                {
                    if (num5 == 3)
                    {
                        list.Add(num4);
                        list.Add(num4 + 2);
                        list.Add(num4 + 1);
                        num4 += 3;
                    }
                    else
                    {
                        if (num5 != 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 num6         = modelBuffersData.Vertices.Length;

            modelBuffersData.Vertices = Collada.ExtendArray <byte>(modelBuffersData.Vertices, list.Count * vertexStride);
            using (BinaryWriter binaryWriter = new BinaryWriter(new MemoryStream(modelBuffersData.Vertices, num6, list.Count * vertexStride)))
            {
                bool flag = false;
                foreach (KeyValuePair <VertexElement, Collada.ColladaInput> keyValuePair in dictionary)
                {
                    VertexElement        key   = keyValuePair.Key;
                    Collada.ColladaInput value = keyValuePair.Value;
                    if (key.Semantic.StartsWith("POSITION"))
                    {
                        for (int j = 0; j < list.Count; j++)
                        {
                            float[] array  = value.Source.Accessor.Source.Array;
                            int     offset = value.Source.Accessor.Offset;
                            int     stride = value.Source.Accessor.Stride;
                            int     num7   = polygons.P[list[j] * polygons.Inputs.Count + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(j * vertexStride + key.Offset);
                            float num8  = array[offset + stride * num7];
                            float num9  = array[offset + stride * num7 + 1];
                            float num10 = array[offset + stride * num7 + 2];
                            modelMeshPartData.BoundingBox = (flag ? BoundingBox.Union(modelMeshPartData.BoundingBox, new Vector3(num8, num9, num10)) : new BoundingBox(num8, num9, num10, num8, num9, num10));
                            flag = true;
                            binaryWriter.Write(num8);
                            binaryWriter.Write(num9);
                            binaryWriter.Write(num10);
                        }
                    }
                    else if (key.Semantic.StartsWith("NORMAL"))
                    {
                        for (int k = 0; k < list.Count; k++)
                        {
                            float[] array2  = value.Source.Accessor.Source.Array;
                            int     offset2 = value.Source.Accessor.Offset;
                            int     stride2 = value.Source.Accessor.Stride;
                            int     num11   = polygons.P[list[k] * polygons.Inputs.Count + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(k * vertexStride + key.Offset);
                            float num12 = array2[offset2 + stride2 * num11];
                            float num13 = array2[offset2 + stride2 * num11 + 1];
                            float num14 = array2[offset2 + stride2 * num11 + 2];
                            float num15 = 1f / (float)Math.Sqrt(num12 * num12 + num13 * num13 + num14 * num14);
                            binaryWriter.Write(num15 * num12);
                            binaryWriter.Write(num15 * num13);
                            binaryWriter.Write(num15 * num14);
                        }
                    }
                    else if (key.Semantic.StartsWith("TEXCOORD"))
                    {
                        for (int l = 0; l < list.Count; l++)
                        {
                            float[] array3  = value.Source.Accessor.Source.Array;
                            int     offset3 = value.Source.Accessor.Offset;
                            int     stride3 = value.Source.Accessor.Stride;
                            int     num16   = polygons.P[list[l] * polygons.Inputs.Count + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(l * vertexStride + key.Offset);
                            binaryWriter.Write(array3[offset3 + stride3 * num16]);
                            binaryWriter.Write(1f - array3[offset3 + stride3 * num16 + 1]);
                        }
                    }
                    else
                    {
                        if (!key.Semantic.StartsWith("COLOR"))
                        {
                            throw new Exception();
                        }
                        for (int m = 0; m < list.Count; m++)
                        {
                            float[] array4  = value.Source.Accessor.Source.Array;
                            int     offset4 = value.Source.Accessor.Offset;
                            int     stride4 = value.Source.Accessor.Stride;
                            int     num17   = polygons.P[list[m] * polygons.Inputs.Count + value.Offset];
                            binaryWriter.BaseStream.Position = (long)(m * vertexStride + key.Offset);
                            Color color = new Color(array4[offset4 + stride4 * num17], array4[offset4 + stride4 * num17 + 1], array4[offset4 + stride4 * num17 + 2], array4[offset4 + stride4 * num17 + 3]);
                            binaryWriter.Write(color.PackedValue);
                        }
                    }
                }
            }
            modelMeshPartData.StartIndex   = num6 / vertexStride;
            modelMeshPartData.IndicesCount = list.Count;
            return(modelMeshPartData);
        }
Ejemplo n.º 6
0
        public static void WriteModel(Stream mainStream, Stream daeStream)
        {
            BinaryWriter binaryWriter = new BinaryWriter(mainStream, Encoding.UTF8, true);

            binaryWriter.Write(true);
            Matrix    m         = Matrix.CreateScale(new Vector3(1f, 1f, 1f));
            ModelData modelData = Collada.Load(daeStream);

            binaryWriter.Write(modelData.Bones.Count);
            foreach (ModelBoneData current in modelData.Bones)
            {
                Matrix matrix = (current.ParentBoneIndex < 0) ? (current.Transform * m) : current.Transform;
                binaryWriter.Write(current.ParentBoneIndex);
                binaryWriter.Write(current.Name);
                binaryWriter.Write(matrix.M11);
                binaryWriter.Write(matrix.M12);
                binaryWriter.Write(matrix.M13);
                binaryWriter.Write(matrix.M14);
                binaryWriter.Write(matrix.M21);
                binaryWriter.Write(matrix.M22);
                binaryWriter.Write(matrix.M23);
                binaryWriter.Write(matrix.M24);
                binaryWriter.Write(matrix.M31);
                binaryWriter.Write(matrix.M32);
                binaryWriter.Write(matrix.M33);
                binaryWriter.Write(matrix.M34);
                binaryWriter.Write(matrix.M41);
                binaryWriter.Write(matrix.M42);
                binaryWriter.Write(matrix.M43);
                binaryWriter.Write(matrix.M44);
            }
            binaryWriter.Write(modelData.Meshes.Count);
            foreach (ModelMeshData current2 in modelData.Meshes)
            {
                binaryWriter.Write(current2.ParentBoneIndex);
                binaryWriter.Write(current2.Name);
                binaryWriter.Write(current2.MeshParts.Count);
                binaryWriter.Write(current2.BoundingBox.Min.X);
                binaryWriter.Write(current2.BoundingBox.Min.Y);
                binaryWriter.Write(current2.BoundingBox.Min.Z);
                binaryWriter.Write(current2.BoundingBox.Max.X);
                binaryWriter.Write(current2.BoundingBox.Max.Y);
                binaryWriter.Write(current2.BoundingBox.Max.Z);
                foreach (ModelMeshPartData current3 in current2.MeshParts)
                {
                    binaryWriter.Write(current3.BuffersDataIndex);
                    binaryWriter.Write(current3.StartIndex);
                    binaryWriter.Write(current3.IndicesCount);
                    binaryWriter.Write(current3.BoundingBox.Min.X);
                    binaryWriter.Write(current3.BoundingBox.Min.Y);
                    binaryWriter.Write(current3.BoundingBox.Min.Z);
                    binaryWriter.Write(current3.BoundingBox.Max.X);
                    binaryWriter.Write(current3.BoundingBox.Max.Y);
                    binaryWriter.Write(current3.BoundingBox.Max.Z);
                }
            }
            binaryWriter.Write(modelData.Buffers.Count);
            foreach (ModelBuffersData current4 in modelData.Buffers)
            {
                binaryWriter.Write(current4.VertexDeclaration.VertexElements.Length);
                foreach (VertexElement current5 in current4.VertexDeclaration.VertexElements)
                {
                    binaryWriter.Write(current5.Offset);
                    binaryWriter.Write((int)current5.Format);
                    binaryWriter.Write(current5.Semantic);
                }
                binaryWriter.Write(current4.Vertices.Length);
                binaryWriter.Write(current4.Vertices);
                binaryWriter.Write(current4.Indices.Length);
                binaryWriter.Write(current4.Indices);
            }
        }