public MeshData(Mesh pMesh)
{
TriMesh = pMesh;
RawVertices = TriMesh.vertices.ToList <Vector3>();
RawNormals = TriMesh.normals.ToList <Vector3>();
RawTriangles = TriMesh.triangles.ToList <int>();
GenerateTriangleList();
Root = KDNode.Build(Triangles, 0, Axis.NO_AXIS);
}