protected override MeshInfo Read(ContentReader input, MeshInfo existingInstance)
{
List <TrackModelProcessor.MeshInfo.Triangle> triangles = new List <MeshInfo.Triangle>();
int num = input.ReadInt32();
for (int i = 0; i < num; i++)
{
Vector3 p0 = input.ReadObject <Vector3>();
Vector3 p1 = input.ReadObject <Vector3>();
Vector3 p2 = input.ReadObject <Vector3>();
TrackModelProcessor.MeshInfo.Triangle triangle = new MeshInfo.Triangle(p0, p1, p2);
triangles.Add(triangle);
}
BoundingBox box = input.ReadObject <BoundingBox>();
MeshInfo info = new MeshInfo(triangles, box);
return(info);
}
private void ProcessChildren(NodeContent node)
{
float minX = float.MaxValue;
float minY = float.MaxValue;
float minZ = float.MaxValue;
float maxX = float.MinValue;
float maxY = float.MinValue;
float maxZ = float.MinValue;
MeshContent mesh = node as MeshContent;
foreach (NodeContent child in node.Children)
{
ProcessChildren(child);
}
if (mesh != null)
{
foreach (Vector3 vertex in mesh.Positions)
{
if (vertex.Z < minZ)
{
minZ = vertex.Z;
}
if (vertex.X < minX)
{
minX = vertex.X;
}
if (vertex.Y < minY)
{
minY = vertex.Y;
}
if (vertex.Z > maxZ)
{
maxZ = vertex.Z;
}
if (vertex.X > maxX)
{
maxX = vertex.X;
}
if (vertex.Y > maxY)
{
maxY = vertex.Y;
}
}
Matrix absoluteTransformation = mesh.AbsoluteTransform;
List <MeshInfo.Triangle> triangleList = new List <MeshInfo.Triangle>();
foreach (GeometryContent geo in mesh.Geometry)
{
int triangles = geo.Indices.Count / 3;
for (int currentTriangle = 0; currentTriangle < triangles; currentTriangle++)
{
int[] indexes = new int[3];
for (int i = 0; i < 3; i++)
{
indexes[i] = geo.Indices[currentTriangle * 3 + i];
}
Vector3[] vertices = new Vector3[3];
Vector3[] transformedVertices = new Vector3[3];
for (int i = 0; i < 3; i++)
{
vertices[i] = geo.Vertices.Positions[indexes[i]];
transformedVertices[i] = Vector3.Transform(vertices[i], absoluteTransformation);
}
MeshInfo.Triangle triangle = new MeshInfo.Triangle(transformedVertices[0], transformedVertices[1], transformedVertices[2]);
triangleList.Add(triangle);
}
}
BoundingBox box = new BoundingBox(new Vector3(minX, minY, minZ), new Vector3(maxX, maxY, maxZ));
MeshInfo info = new MeshInfo(triangleList, box);
information.Add(info);
}
}
