void ParseObject(XmlReader xml, ParsedXmlModel data, ref XmlModelObject obj)
{
int depth = xml.Depth;
Vector3[] positions = null;
Vector3[] normals = null;
MeshFace[] faces = null;
Vector2[] texVtx = null;
Index3i[] texIdx = null;
VertexWeight[] vtxWeights = null;
#region 从Xml中读取数据
while (xml.Read() && xml.Depth > depth)
{
if (xml.IsStartElement() && !xml.IsEmptyElement)
{
switch (xml.Name)
{
case "Parent":
obj.ID = int.Parse(xml.GetAttribute("ID"));
break;
case "LocalTM":
obj.LocalTM = ParseMatrix(xml);
break;
case "WorldTM":
obj.WorldTM = ParseMatrix(xml);
break;
case "BoundingBox":
obj.AABB = ParseBoundingBox(xml);
break;
case "Vertex":
positions = ParseMeshVector3Array(xml);
break;
case "VertexNormal":
normals = ParseMeshVector3Array(xml);
for (int i = 0; i < normals.Length; i++)
{
normals[i].Normalize();
}
break;
case "TexVertex":
texVtx = ParseMeshVector2Array(xml);
break;
case "TriIndex":
faces = ParseMeshFaces(xml);
break;
case "TexIndex":
texIdx = ParseTexIndex(xml, faces.Length);
break;
case "VertexWeight":
vtxWeights = ParseVertexWeightArray(xml, positions.Length);
break;
case "Key":
obj.BoneData = ParseBoneData(xml);
break;
}
}
}
#endregion
if (obj.Type == XmlModelObjectType.Mesh)
{
FastList <VertexElement> elementsList = new FastList <VertexElement>();
int ofs = 0;
if (positions != null)
{
VertexElement e = new VertexElement(ofs, VertexElementFormat.Vector3, VertexElementUsage.Position);
elementsList.Add(e);
ofs += e.Size;
}
if (normals != null)
{
VertexElement e = new VertexElement(ofs, VertexElementFormat.Vector3, VertexElementUsage.Normal);
elementsList.Add(e);
ofs += e.Size;
}
if (texVtx != null)
{
VertexElement e = new VertexElement(ofs, VertexElementFormat.Vector2, VertexElementUsage.TextureCoordinate, 0);
elementsList.Add(e);
ofs += e.Size;
}
if (vtxWeights != null)
{
VertexElement e = new VertexElement(ofs, VertexElementFormat.Byte4, VertexElementUsage.BlendWeight, 0);
elementsList.Add(e);
ofs += e.Size;
}
VertexElement[] elements = new VertexElement[elementsList.Count];
Array.Copy(elementsList.Elements, elements, elementsList.Count);
obj.Mesh = new MeshData((RenderSystem)null);
MeshData mesh = obj.Mesh;
mesh.Faces = faces;
mesh.Name = obj.Name;
byte[] buffer = null;
if (VertexElement.Compare(elements, VertexPBNT1.Elements))
{
buffer = BuildVertexPBNT1Data(positions, normals, texVtx, texIdx, vtxWeights, faces);
mesh.VertexSize = sizeof(VertexPBNT1);
mesh.VertexElements = VertexPBNT1.Elements;
}
else if (VertexElement.Compare(elements, VertexPNT1.Elements))
{
buffer = BuildVertexPNT1Data(positions, normals, texVtx, texIdx, faces);
mesh.VertexSize = sizeof(VertexPNT1);
mesh.VertexElements = VertexPNT1.Elements;
}
else if (VertexElement.Compare(elements, VertexPT1.Elements))
{
buffer = BuildVertexPT1Data(positions, texVtx, texIdx, faces);
mesh.VertexSize = sizeof(VertexPT1);
mesh.VertexElements = VertexPT1.Elements;
}
else if (VertexElement.Compare(elements, VertexPN.Elements))
{
buffer = BuildVertexPNData(positions, normals, faces);
mesh.VertexSize = sizeof(VertexPN);
mesh.VertexElements = VertexPN.Elements;
}
else if (VertexElement.Compare(elements, VertexP.Elements))
{
buffer = BuildVertexPData(positions, faces);
mesh.VertexSize = sizeof(VertexP);
mesh.VertexElements = VertexP.Elements;
}
if (buffer != null)
{
if (mesh.VertexSize != 0)
{
mesh.VertexCount = buffer.Length / mesh.VertexSize;
}
fixed(byte *src = &buffer[0])
{
mesh.SetData(src, buffer.Length);
}
}
}
}
