public override void ComputeSweptAABB(out AABB aabb, XForm transform1, XForm transform2)
{
AABB aabb1, aabb2;
ComputeAABB(out aabb1, transform1);
ComputeAABB(out aabb2, transform2);
aabb.LowerBound = Common.Math.Min(aabb1.LowerBound, aabb2.LowerBound);
aabb.UpperBound = Common.Math.Max(aabb1.UpperBound, aabb2.UpperBound);
}