OctreeNode <T>[] BuildNodes()
{
Vector3 dimensions = Bounds.Maximum - Bounds.Minimum;
// Vector3 half = dimensions * 0.25f;
Vector3 center = Bounds.Center;
var m_region = Bounds;
var octant = new AxisAlignedBox[NumChildNodes];
octant[0] = new AxisAlignedBox(m_region.Minimum, center);
octant[1] = new AxisAlignedBox(new Vector3(center.X, m_region.Minimum.Y, m_region.Minimum.Z), new Vector3(m_region.Maximum.X, center.Y, center.Z));
octant[2] = new AxisAlignedBox(new Vector3(center.X, m_region.Minimum.Y, center.Z), new Vector3(m_region.Maximum.X, center.Y, m_region.Maximum.Z));
octant[3] = new AxisAlignedBox(new Vector3(m_region.Minimum.X, m_region.Minimum.Y, center.Z), new Vector3(center.X, center.Y, m_region.Maximum.Z));
octant[4] = new AxisAlignedBox(new Vector3(m_region.Minimum.X, center.Y, m_region.Minimum.Z), new Vector3(center.X, m_region.Maximum.Y, center.Z));
octant[5] = new AxisAlignedBox(new Vector3(center.X, center.Y, m_region.Minimum.Z), new Vector3(m_region.Maximum.X, m_region.Maximum.Y, center.Z));
octant[6] = new AxisAlignedBox(center, m_region.Maximum);
octant[7] = new AxisAlignedBox(new Vector3(m_region.Minimum.X, center.Y, center.Z), new Vector3(center.X, m_region.Maximum.Y, m_region.Maximum.Z));
return(octant.Select(x => new OctreeNode <T>(ref x, MaximumChildren, this)).ToArray());
}
