public bool Intersects(FastBounds b)
{
var gap =
(max_x < b.min_x || b.max_x < min_x) ||
(max_y < b.min_y || b.max_y < min_y) ||
(max_z < b.min_z || b.max_z < min_z);
return(!gap);
}
public void Encapsulate(FastBounds fb)
{
Encapsulate(fb.min_x, fb.min_y, fb.min_z);
Encapsulate(fb.max_x, fb.max_y, fb.max_z);
}