May I ask if you have tried to convert the LiDAR point cloud data scanned by drones into terrain for display in Unreal? I tried to convert point cloud data into grayscale maps before creating terrain in the engine, but the accuracy was too low, and because there were buildings on the previous scanned data, the point cloud data generated after removing it could not be used at all. Do you have a method to convert the scanned model into terrain? It would be even better if buildings on the terrain could be removed.