Disclosed is a graphics system and associated methodologies for selectively increasing the level-of-detail at specific parts of a mesh model based on a point cloud that provides a higher detailed representation of the same or similar three-dimensional (“3D”) object. The graphics system receives the mesh model and the point cloud of the 3D object. The graphics system determines a region-of-interest of the 3D object based in part on differences amongst points that represent part or all of the region-of-interest. The graphics system reconstructs the region-of-interest in the mesh model and generates a modified mesh model by modifying a first set of meshes representing the region-of-interest in the mesh model to a second set of meshes based on the positional elements of the point cloud points. The second set of meshes has more meshes and represents the region-of-interest at a higher level-of-detail than the first set of meshes.