In this tutorial, you will learn how to develop a 3D model from a DEM using QGIS. We will be using the QGIS plugin 'Qgis2threejs' in order to build the 3D model, adjust the vertical exaggeration of the terrain, adjust the styling and finally export the 3D model as an HTML file, so that the 3D model can be opened by a web browser without having the need to have QGIS.
Download the working files - https://drive.google.com/drive/folders/1PCP6jbePl8uYF1RmJEPkhT_cW34DS9-X?usp=sharing