In this paper. we propose a method to visualize large-scale colliding point clouds by highlighting their collision areas. and apply the method to visualization of collision simulation. Our method uses our recent work that achieved precise three-dimensional see-through imaging. https://safeersappliancers.shop/product-category/bosch-bfl553ms0b-serie-4-900-watt-microwave-built-in-stainless-steel/