We propose a novel fully automatic technique for roof fitting in 3D point clouds based on sequential importance sampling (SIS). Our approach makes no assumption of the nature (sparse. dense) or origin (LIDAR. image matching) of the point clouds and further distinguishes. https://www.roneverhart.com/BenQ-MOBIUZ-EX2710U-27-4K-UHD-3840-x-2160-144-Hz-Gaming-Monitor-1ms-HDMI-DisplayPort-Built-in-Speakers/