使用多种几何形状无法正确检测到碰撞

I have a spaceship object which has a complex geometry, and since SceneKit's physics doesn't work with complex bodies, I have adopted a workaround: I'm using some basic shapes like cylinders and cubes so simulate the whole spaceship's body. In Blender I created a set of objects that approximate the shape of the spaceship:I have a spaceship object which has a complex g