/// <summary> Determine if and only if A partially contains B </summary>
public static bool IsIntersecting(Bounds4 a, Bounds4 b)
{
return(b.max > a.min && b.min < a.max);
}
/// <summary> Compare which Bounds4 is the closest. Positive means L is closer </summary>
public static float Compare(Vector4 center, Bounds4 l, Bounds4 r)
{
return(Vector4.DistanceSq(r.Clamp(center), center) - Vector4.DistanceSq(l.Clamp(center), center));
}
/// <summary> Scales the bound's extent </summary>
public static Bounds4 Scale(Bounds4 b, Vector4 s)
{
Vector4 c = b.center, e = b.extent * s;
return(new Bounds4(c - e, c + e));
}
/// <summary> Intersect two bounds </summary>
public static Bounds4 Intersect(Bounds4 a, Bounds4 b)
{
return(new Bounds4(Vector4.Max(a.min, b.min), Vector4.Min(a.max, b.max)));
}
/// <summary> Is this bound contains the whole cell of the other bound? </summary>
public bool Contains(Bounds4 other)
{
return(min < other.min && max > other.max);
}
/// <summary>
/// Create a sphere from box bounding
/// </summary>
public SphereBounds4(Bounds4 bound)
{
center = bound.center;
radius = Vector4.MaxPerElem(bound.extent);
}