public override void AddChildShapeToCompoundShape(BulletShape shape, BulletShape addShape, Vector3 pos,
Quaternion rot)
{
BulletShapeUnman shapeu = shape as BulletShapeUnman;
BulletShapeUnman addShapeu = addShape as BulletShapeUnman;
BSAPICPP.AddChildShapeToCompoundShape2(shapeu.ptr, addShapeu.ptr, pos, rot);
}