https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/173786/is-there-a-solution-to-the-existing-ground-showing-up-on-top-of-the-design-surface-in-a-cut-areaI have a road that has a fairly large cut section but when I take it to Lumen to render and animate it the existing ground shows up on top of the proposed surface. So the only design surface I can see is areas that the grade is higher.en-USTelligent Community 12https://communities.bentley.com/thread/538399?ContentTypeID=1Thu, 15 Aug 2019 15:26:51 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9a4312d9-7fd5-487d-bc14-6c4d145d46bfMark Marnell<p>One example - old version but workflow is still valid.</p> <p><a href="/products/road___site_design/w/road_and_site_design__wiki/17434/video-terrain-model-clipping">https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/17434/video-terrain-model-clipping</a></p> <p>Basically, any shape can be used to clip a terrain, either Internally or Externally. You could also create a terrain of the proposed road, and use that to clip the existing terrain.</p><div style="clear:both;"></div>https://communities.bentley.com/thread/538388?ContentTypeID=1Thu, 15 Aug 2019 14:55:54 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0ba5d227-d72f-4802-97ed-43a64520c5c6Andrew Miller<p>Is there a video or workflow available to show how this is done?</p><div style="clear:both;"></div>https://communities.bentley.com/thread/501565?ContentTypeID=1Thu, 17 Jan 2019 07:49:11 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:e7e9b9c7-f836-4c2a-a2ad-bbda0eab283aMark Marnell<p>Create a clipped terrain that removes the existing ground from under the proposed road before sending the model to LumenRT.</p><div style="clear:both;"></div>