protected override void UpdateContainedPairs()
{
var overlappedElements = PhysicsResources.GetCollidableList();
staticGroup.Shape.CollidableTree.GetOverlaps(mesh.boundingBox, overlappedElements);
for (int i = 0; i < overlappedElements.Count; i++)
{
var staticCollidable = overlappedElements.Elements[i] as StaticCollidable;
TryToAdd(overlappedElements.Elements[i], mesh, staticCollidable != null ? staticCollidable.Material : staticGroup.Material);
}
PhysicsResources.GiveBack(overlappedElements);
}