<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi guys,<div class=""><br class=""></div><div class="">Since no one seems to have worked with 2 surfaces, here is a possibility thanks to Angus and his great 3D viewer: CaveView (it is easy to make it work on your computer without going through a web server). You can see in this example the DEM and a fault plane : <a href="http://www.pages-perso-philippe-vernant.univ-montp2.fr/Philippe_Vernant/garrel.html" class="">http://www.pages-perso-philippe-vernant.univ-montp2.fr/Philippe_Vernant/garrel.html</a></div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Phil</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 25 Nov 2018, at 22:43, Philippe Vernant <<a href="mailto:phil.vernant@gmail.com" class="">phil.vernant@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi guys,<br class=""><br class="">Can we have two surfaces in Therion like a DEM and a surface showing the water base level?<br class="">I have tried, but failed. So I assume it is not possible, but it would not be the first time I’m wrong, and I would really be happy to be so in this case! <br class=""><br class="">Cheers,<br class="">Phil<br class=""><br class=""></div></div></blockquote></div><br class=""></div></body></html>