Lecture 25: Terrain Modeling & Section Cuts from Grant Adams on Vimeo. Demonstration of terrain modeling in Google SketchUp including using Google Earth for choosing locations. Demonstration also included the use of the Section Plane tool to create sections of 3D models. Comments (0) Submit a comment... (Minimum 25 characters) Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.