Abstract: The disclosure generally pertains to generating floorplans. An example method to do so involves generating a three-dimensional polygonal mesh representation of at least a portion of a building (one floor of the building, for example). The three-dimensional polygonal mesh representation is generated from images captured by a smartphone, for example. The method further includes generating an edge existence probability mask based on depth information obtained by using a LiDAR device on the smartphone, for example. The edge existence probability mask represents a confidence level associated with identifying an edge of a wall. A pictorial rendering of the building or a part of the building can be generated based on identifying edges and walls of the building by utilizing the three-dimensional polygonal mesh representation and the edge existence probability mask. The pictorial rendering may be used, for example, to provide interior design assistance with respect to a room of the building.