Drones equipped with RGB cameras can be used to create 3D models of both terrains and structures by capturing high-resolution images of the area. The images are typically captured by flying the drone over the area in a grid pattern, taking multiple overlapping images at different altitudes and angles. The images are then processed using specialized software, which combines the images and generates a 3D model of the area.

3D models created using drones with RGB cameras can be used for a variety of applications, including mapping, surveying, and land use planning. The high-resolution images captured by the drone's camera can provide detailed information about both the terrain and structures in the area, including their elevation, slope, and features such as buildings, roads, and vegetation. This information can be used to create accurate maps of the area and to measure distances, heights, and other quantities. In addition, 3D models created using drones can be used to visualize the terrain and structures in 3D and to create virtual fly-throughs of the area. RGB sensors are a much more cost effective option when LiDAR is not necessary. Drones with RGB cameras are a powerful tool for creating detailed and accurate 3D models of both terrains and structures.