# Geometry Fails in Dynamo Revit but Works Fine in Dynamo Sandbox **URL:** \ **Category:** Revit\ **Created:** [July 23, 2018, 9:53pm UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036 "2018-07-23T21:53:10Z")\ **Posts on this page:** 8\ **Page:** 2
**Author:** ![Jonathan.Olesen](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jonathan.olesen/32/44242_2.png) [@Jonathan.Olesen](https://forum.dynamobim.com/u/Jonathan.Olesen)\ **Post date:** [July 25, 2018, 9:15am UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/21 "2018-07-25T09:15:19Z")
There goes that theory… I’ve tried in Sandbox as well and have the same “issue” Which leads me to think the underlying use of polysurface.byloft is pulling on some other resource… hmm It is the last curve that screws up the process… ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/2/d/2d96bf3eea18b39b2dbcc7943abc5dd7b699bf6f.png) Lofting only the bottom polycurve with the upper curve shows the problem… ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/c/e/ce1cf1577fbb8f2dcf69bda8a9641db3ef23ef68.png) ---
**Author:** ![siedlczy](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@siedlczy](https://forum.dynamobim.com/u/siedlczy)\ **Post date:** [July 25, 2018, 9:57am UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/22 "2018-07-25T09:57:20Z")
Ok, so is there any solution of my problem? I don’t want to change geometry of this object and I would like to improve it as simplest as it is possible. ---
**Author:** ![siedlczy](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@siedlczy](https://forum.dynamobim.com/u/siedlczy)\ **Post date:** [July 25, 2018, 6:54pm UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/23 "2018-07-25T18:54:32Z")
Ok, I installed Revit 2017 and opened my file through Dynamo 1.3.3 in Revit. Stadium in Dynamo looks good but in Revit I have something like that (below). Does somebody has any idea what I have to do now? ![4](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/b/7b355bd3591f10ee818f46fff01c20e903929c10.png) ---
**Author:** ![Michael\_Kirschner2](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/michael_kirschner2/32/75576_2.png) [@Michael\_Kirschner2](https://forum.dynamobim.com/u/Michael_Kirschner2)\ **Post date:** [July 25, 2018, 11:27pm UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/24 "2018-07-25T23:27:57Z")
the units of your model seem like they might be different. ---
**Author:** ![siedlczy](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@siedlczy](https://forum.dynamobim.com/u/siedlczy)\ **Post date:** [July 26, 2018, 6:29am UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/25 "2018-07-26T06:29:27Z")
Ok, but even if I put node “Geometry.Scale” in Dynamo, still I see those squares and rectangles. Is there any function which can hide this? Besides when I open my model in Dynamo through Revit it works really slow. Is there any solution how I can speed up? ---
**Author:** ![Michael\_Kirschner2](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/michael_kirschner2/32/75576_2.png) [@Michael\_Kirschner2](https://forum.dynamobim.com/u/Michael_Kirschner2)\ **Post date:** [July 26, 2018, 6:24pm UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/26 "2018-07-26T18:24:05Z")
you should be able to hide the dynamo geometry preview in revit under view/backgroundPreviews menu items - it’s something similar to that. ---
**Author:** ![siedlczy](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@siedlczy](https://forum.dynamobim.com/u/siedlczy)\ **Post date:** [July 28, 2018, 7:10am UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/27 "2018-07-28T07:10:03Z")
Does somebody know where I can exactly find this function? ---
**Author:** ![siedlczy](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@siedlczy](https://forum.dynamobim.com/u/siedlczy)\ **Post date:** [July 28, 2018, 8:23am UTC](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036/28 "2018-07-28T08:23:17Z")
Ok. I deal with it, but now I would like to add some materials to my model which I have in Revit. How I can do this? [Previous page](https://forum.dynamobim.com/t/geometry-fails-in-dynamo-revit-but-works-fine-in-dynamo-sandbox/24036.md?page=1)