**************** 3D Visualization **************** 3D visualization aims at bringing a better visual effect to the end users. This chapter will introduce a new tool `Open3D `_ for 3D visualization. Firstly, based on existing 3D model files, `Open3D `_ demonstrates its capability to represent objects in 3D at 3 different levels: 3D point cloud, 3D mesh representing object's shape, and 3D colormap representing both object's shape and object's texture. Afterwards, `Intel Real Sense D435 `_'s real data is captured and visualized in `Open3D `_. By the end of this chapter, you will be able to generate 3D point cloud, 3D mesh and 3D colormap for both exisiting 3D models and RGBD data captured from RGBD cameras. .. toctree:: chapter5/01_from_images_videos chapter5/02_from_live_stream