https://community.graphisoft.com/t5/Modeling/SEO-Suddenly-not-working/m-p/131354#M69974 <DIV class="actalk-migrated-content"><T>I am trying to do the slab intersecting with a mesh to create pavement that follows the terrain trick, and for some reason nothing happens. This is something I have done many times, and SEOs work else where in the project so I am totally stumped. Anyone have any ideas? Thanks in advance!<BR /> <BR /> -Chris</T></DIV> Thu, 25 May 2023 14:34:39 GMT Chris Grantham 2023-05-25T14:34:39Z https://community.graphisoft.com/t5/Modeling/SEO-Suddenly-not-working/m-p/131354#M69974 <DIV class="actalk-migrated-content"><T>I am trying to do the slab intersecting with a mesh to create pavement that follows the terrain trick, and for some reason nothing happens. This is something I have done many times, and SEOs work else where in the project so I am totally stumped. Anyone have any ideas? Thanks in advance!<BR /> <BR /> -Chris</T></DIV> Thu, 25 May 2023 14:34:39 GMT https://community.graphisoft.com/t5/Modeling/SEO-Suddenly-not-working/m-p/131354#M69974 Chris Grantham 2023-05-25T14:34:39Z https://community.graphisoft.com/t5/Modeling/SEO-Suddenly-not-working/m-p/131355#M69975 My experience doing exactly the same thing is that there is a point where it stops working.<BR /> <BR /> Workaround is to INTERSECT all your roads then make copies of them to use as CUTTERS for the MESH. The problem [for me] occurs when I use the SLAB that has already been INTERSECTED w/ the mesh as the CUTTER for the same mesh.<BR /> <BR /> Yes, it works sometimes, then will stop working. But I've always been able to SUBTRACT w/ UPWARD EXTRUSION using a 2nd slab that matches the first. These can reside on an OPERATERS layer to not show during 3d sessions. Wed, 03 Dec 2008 18:58:34 GMT https://community.graphisoft.com/t5/Modeling/SEO-Suddenly-not-working/m-p/131355#M69975 vfrontiers 2008-12-03T18:58:34Z