A 3D Structural Envelope view is essential so that all Revit structural elements come through into UE. Shaun Bryant shows you how to set this up.
- [Instructor] We're staying in our New Office Building METRIC_UE.RVT file in Revit, and we've got our UE 3D Views all set up in Revit as well, so we can start working on those and generating the specific views that we need to bring into our scene in Unreal Engine as well. Now, the first one we're going to look at is the UE Structural 3D View, so in the project browser, make sure you double-click on UE Structural here, like so, to make it the current view. Now, when you look at it, it's in an isometric 3D view, what we're going to do first is select the roof and we're going to right-click, and like we've done previously, Hide In View and select Elements like so. Now the reason we want to do that is just so we can see the wood for the trees, we can't really see through the roof if we're trying to see inside the specific building itself so that we can hide things that we don't need to see. Now, what we can do here is we can utilize our temporary Hide/Isolate, and we will need to use the navigation tools in Revit, such as zooming, panning, and using the 3D orbit as well. So what we're going to do is we're going to just do a little bit of zooming and panning, and zoom in on this receptions of cafeteria area first. I'm going to select just one of the tables like that, with the four chairs, and then I'm going to come down to the spectacles here, like so, and I'm going to hide that particular element, and as you can see, it disappears. Now I can do this individually if I want to, it's entirely up to you how you play this, but what you can do as well is then select perhaps that one, and what we'll do there is we'll go here and we'll do Hide Category. Now, as soon as I do that, all the furniture disappears, and I don't want any furniture at all in this particular 3D Structural View for UE. So I'm going to do a little bit of an orbit now and just pan up a little bit. Now we've got a couple of lights there, So what I'll do is I'll select that one, hold down Control and select the other one, come down to the spectacles again here, and I want to hide those elements and they will disappear also. and you do have to be fairly careful here, if you've got a complex model, you may find that lights, especially which can affect the lighting in UE, in your scene, are the ones that are often the culprits and you don't find them until the last minute. So let's just make sure that we work our way through so that all we can see is our structural elements in our UE Structural 3D View. Just going to pan down a little bit more, you'll notice that there's some elements in that office there as well. Now, what we can do is also start losing some of the internal elements here as well. Now I don't actually need that wall there, that's an internal wall, so what I can do is come down to the spectacles and hide that element as well, that can go. Leaves the door there, I'll select the door, that can also go as well, I can hide that element too like that, and that desk can go, and I'll hold down Control and select that lamp as well, that can go, let's make sure we get rid of that, and we'll do the Hide Element again as well. Now, just make sure you orbit occasionally because you can see, look, there's a light there that I've missed, select it down to the spectacles and Hide Element again. Now there's all that other stuff here that we don't need, so all of these bathrooms and internal walls here can go, so you might just want to do a little bit of an orbit here and just start doing a little bit of a crossing selection like that, but just make sure you don't get the external walls like that. So I'll do that, and again, just Hide Element or possibly even Hide Category there as well. So if I use Hide Category, you'll notice that it gets rid of the external walls as well, which is not really what I wanted to do, so we'll just right-click there, and what we need to do is we need to undo that. Now there's no undo, so what we need to do is just hit Escape once and twice and go back to undo here, and you'll see that brings everything back to where we were before. So be careful what you select. So we've got to be careful here. So what we want to do is hide elements, not categories, so we'll zoom in a bit and these doors here can go, so I'll select the doors there, now we should be able to Hide Category doors, but then we've got doors in the external walls, so it might be a Hide Element is the better selection there like so, and you can just select these walls like this and hide the elements again and just work your way around, slowly getting rid of each bit that you don't need, and again, holding down control to select multiple elements if you want to hide the elements as well. It does take a little bit of time, but the only bits of structural elements that you want to see in here are this main wall going through the middle, and the walls going around, and the curtain walling. Now it's up to you, you can class this as internal if you wish. So what you could do here is select this wall here, and again, just do the Hide Element bit like that, and there's a wall there, we'll hide that element as well, and the doors there can go as well, we'll lose those, and it's just a case of using Hide Element and working your way through all of the objects that you have in your Revit model. Now, there are some lines there, those probably aren't needed anymore either, so we can select those and they are room separation lines actually, so they can potentially be hidden as well, so we'll just click there, like so, and again, we just want to use the Hide Element down on the view controller. So you can see that we're slowly working towards just a Structural 3D View, so those doors can go, and again, that's another Hide Element there again, like so, and then what you can do here is just select all of this, like this, and what we'll do there is we'll come down here and we'll just do Hide Element, and that all goes like so. Be careful, you might miss a few sinks and basins like that as well, so make sure you get those too. So you want to make sure that you get rid of those, So perhaps just do a Control like that and just select multiple objects like that, and then again, that's a Hide element, like so. So now all we've got is the structural walls going around the building, so what I'll do is I'll just bring the orbit back around, zoom out slightly, and come up a bit like so. Can you see it's all empty and all we've got are the structural walls going around the outside of the building. One last thing is we need to bring back our roof. So I'm going to come in here and we now want to select the roof and right-click and Unhide In View, Elements like so, and then hit Escape and you'll see that it's gone gray in there, and then we go back to our temporary Hide/Isolate, like so, and we want to apply the Hide/Isolate to the view. So if I apply Hide/Isolate to view and then switch off Close Reveal Hidden Element, if I just do a little bit of an orbit upside down, can you see all we've got, there is the roof and the walls. That's our Structural 3D View all set up and ready to go into our Unreal Engine scene.