private XElement GetGeometry(ModelData model, ModelMeshData data)
{
ModelMeshPartData modelMeshPartData = data.MeshParts[0];
ModelBoneData modelBoneData = model.Bones[data.ParentBoneIndex];
string name = data.Name;
ModelBuffersData modelBuffersData = model.Buffers[modelMeshPartData.BuffersDataIndex];
int indicesCount = modelMeshPartData.IndicesCount;
VertexDeclaration vertexDeclaration = modelBuffersData.VertexDeclaration;
byte[] array = new byte[indicesCount * 32];
using (BinaryReader binaryReader = new BinaryReader(new MemoryStream(modelBuffersData.Indices)))
{
binaryReader.BaseStream.Position = (long)(modelMeshPartData.StartIndex * 2);
for (int i = 0; i < indicesCount; i++)
{
short num = binaryReader.ReadInt16();
Buffer.BlockCopy(modelBuffersData.Vertices, (int)(num * 32), array, i * 32, 32);
}
}
List <Vector3> list = new List <Vector3>();
List <Vector3> list2 = new List <Vector3>();
float[] array2 = new float[indicesCount * 2];
int[] array3 = new int[indicesCount * 3];
using (BinaryReader binaryReader = new BinaryReader(new MemoryStream(array)))
{
foreach (VertexElement vertexElement in vertexDeclaration.VertexElements)
{
if (vertexElement.Semantic.StartsWith("POSITION"))
{
Vector3[] array4 = new Vector3[3];
for (int j = 0; j < indicesCount; j++)
{
binaryReader.BaseStream.Position = (long)(vertexDeclaration.VertexStride * j + vertexElement.Offset);
Vector3 vector = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
if (!list.Contains(vector))
{
list.Add(vector);
}
int num2 = j % 3;
array4[num2] = vector;
if (num2 == 2)
{
array3[j * 3 - 6] = list.IndexOf(array4[0]);
array3[j * 3 - 3] = list.IndexOf(array4[2]);
array3[j * 3] = list.IndexOf(array4[1]);
}
}
}
else if (vertexElement.Semantic.StartsWith("NORMAL"))
{
Vector3[] array5 = new Vector3[3];
for (int k = 0; k < indicesCount; k++)
{
binaryReader.BaseStream.Position = (long)(vertexDeclaration.VertexStride * k + vertexElement.Offset);
Vector3 vector2 = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
if (!list2.Contains(vector2))
{
list2.Add(vector2);
}
int num3 = k % 3;
array5[num3] = vector2;
if (num3 == 2)
{
array3[k * 3 - 5] = list2.IndexOf(array5[0]);
array3[k * 3 - 2] = list2.IndexOf(array5[2]);
array3[k * 3 + 1] = list2.IndexOf(array5[1]);
}
}
}
else if (vertexElement.Semantic.StartsWith("TEXCOORD"))
{
for (int l = 0; l < indicesCount; l++)
{
binaryReader.BaseStream.Position = (long)(vertexDeclaration.VertexStride * l + vertexElement.Offset);
array2[l * 2] = binaryReader.ReadSingle();
array2[l * 2 + 1] = 1f - binaryReader.ReadSingle();
if (l % 3 == 2)
{
array3[l * 3 - 4] = l - 2;
array3[l * 3 - 1] = l;
array3[l * 3 + 2] = l - 1;
}
}
}
}
}
XName name2 = this.colladaNS + "mesh";
object[] array6 = new object[5];
XElement source = this.GetSourceArray(name, "-mesh-positions", string.Join(" ", list.ConvertAll <string>((Vector3 v) => string.Format("{0} {1} {2}", v.X.ToString("R"), v.Y.ToString("R"), v.Z.ToString("R")))), list.Count * 3, 3, this.XYZParam());
array6[0] = source;
XElement source2 = this.GetSourceArray(name, "-mesh-normals", string.Join(" ", list2.ConvertAll <string>((Vector3 v) => string.Format("{0} {1} {2}", v.X.ToString("R"), v.Y.ToString("R"), v.Z.ToString("R")))), list2.Count * 3, 3, this.XYZParam());
array6[1] = source2;
XElement source3 = this.GetSourceArray(name, "-mesh-map", string.Join(" ", from f in array2 select f.ToString("R")), array2.Length, 2, this.STParam());
array6[2] = source3;
XElement source4 = new XElement(this.colladaNS + "vertices", new object[]
{
new XAttribute("id", name + "-mesh-vertices"),
this.GetInput("POSITION", source)
});
array6[3] = source4;
array6[4] = new XElement(this.colladaNS + "triangles", new object[]
{
new XAttribute("count", indicesCount / 3),
this.GetInput("VERTEX", source4, 0),
this.GetInput("NORMAL", source2, 1),
this.GetInput("TEXCOORD", source3, 2),
new XElement(this.colladaNS + "p", string.Join <int>(" ", array3))
});
XElement xelement = new XElement(name2, array6);
XElement result;
this.root.Element(this.colladaNS + "library_geometries").Add(result = new XElement(this.colladaNS + "geometry", new object[]
{
new XAttribute("id", name + "-mesh"),
new XAttribute("name", name),
xelement
}));
return(result);
}
public ModelData(Stream stream)
{
BinaryReader binaryReader = new BinaryReader(stream, Encoding.UTF8);
binaryReader.ReadBoolean();
this.Bones.Capacity = binaryReader.ReadInt32();
for (int i = 0; i < this.Bones.Capacity; i++)
{
ModelBoneData modelBoneData = new ModelBoneData();
this.Bones.Add(modelBoneData);
modelBoneData.ParentBoneIndex = binaryReader.ReadInt32();
modelBoneData.Name = binaryReader.ReadString();
modelBoneData.Transform = new Matrix(
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle(),
binaryReader.ReadSingle());
}
this.Meshes.Capacity = binaryReader.ReadInt32();
for (int j = 0; j < this.Meshes.Capacity; j++)
{
ModelMeshData modelMeshData = new ModelMeshData();
this.Meshes.Add(modelMeshData);
modelMeshData.ParentBoneIndex = binaryReader.ReadInt32();
modelMeshData.Name = binaryReader.ReadString();
modelMeshData.MeshParts.Capacity = binaryReader.ReadInt32();
modelMeshData.BoundingBox = new BoundingBox(
new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle()),
new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle()));
for (int k = 0; k < modelMeshData.MeshParts.Capacity; k++)
{
ModelMeshPartData modelMeshPartData = new ModelMeshPartData();
modelMeshData.MeshParts.Add(modelMeshPartData);
modelMeshPartData.BuffersDataIndex = binaryReader.ReadInt32();
modelMeshPartData.StartIndex = binaryReader.ReadInt32();
modelMeshPartData.IndicesCount = binaryReader.ReadInt32();
modelMeshPartData.BoundingBox = new BoundingBox(
new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle()),
new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle()));
}
}
this.Buffers.Capacity = binaryReader.ReadInt32();
for (int l = 0; l < this.Buffers.Capacity; l++)
{
ModelBuffersData modelBuffersData = new ModelBuffersData();
this.Buffers.Add(modelBuffersData);
VertexElement[] array = new VertexElement[binaryReader.ReadInt32()];
for (int m = 0; m < array.Length; m++)
{
array[m] = new VertexElement(binaryReader.ReadInt32(), (VertexElementFormat)binaryReader.ReadInt32(), binaryReader.ReadString());
}
modelBuffersData.VertexDeclaration = new VertexDeclaration(array);
modelBuffersData.Vertices = binaryReader.ReadBytes(binaryReader.ReadInt32());
modelBuffersData.Indices = binaryReader.ReadBytes(binaryReader.ReadInt32());
}
}
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);
}