https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/90000/mask-terrain-model-in-openroads(posted on behalf of user) In Openroads I have a corridor model and an existing terrain model vizualized in a 3d view. How do I clip out or mask the terrain model so it does not show in areas of cut? Thanksen-USTelligent Community 12https://communities.bentley.com/thread/436253?ContentTypeID=1Tue, 28 Nov 2017 13:56:53 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:57636f2b-9537-4bd2-b49d-058fcd4d494aErick Sanchez<p>hello, I have the same problem, I can&#39;t add a mask to a Terrain model, but I can do it over a Scalable terrain model. I really don&#39;t understand why exists this anoying differences, It&#39;s getting a waste of time every day that Bentley add a new feature but forget to clean the other options.&nbsp;</p><div style="clear:both;"></div>https://communities.bentley.com/thread/256680?ContentTypeID=1Mon, 26 Aug 2013 20:24:01 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:7028d5c1-fc97-4883-9069-41852cf101afAdam Wieczorek<p>Hi,</p> <p>In such cases I find Create Clipped Terrain Model tool useful. Existing Terrain Model can be clipped with corridors.</p> <p>Adam</p><div style="clear:both;"></div>