Revit to Autodesk CFD Workflow—Best Practices for the Real AEC Industry Examples

GILBERTO FERNANDEZ: OK, let's get started. First of all, thanks all of you for coming. Yeah, I know that AU can be a really tough experience, and there are a lot of events. [INAUDIBLE] you may be a little bit tired, so I will try to not get you to sleep or anything just now after lunch.

So again, thanks for coming. And let's-- I'm going to introduce myself. My name is Gilberto Fernandez, and I work as an enterprise simulation specialist for Autodesk. I work in the customer services department doing premium support for our premium customers. My background is in aeronautical and mechanical engineering, and I've been working in of the CFD industry for quite a few years now.

And basically, the summary for this class is trying to describe the workflow involved in getting from a full Revit model into getting Autodesk CFD results. And it's basically trying to get you to use a set of tools in there to modify simplify a little bit, and customize your Revit model. So essentially, what I'm trying to do here-- that comes from the experience of getting quite a few support calls from customers-- I'm trying for people not to be afraid of-- for the Revit guys not to be scared about the lots of things-- about lots of things that you need to do to take your model over to CFD.

And again, for the CFD guys as well to trust that it's not a bad transition, really, between Revit and CFD. So I'm going to show a few tools in there. Most of these tools you will find familiar. I'm guessing-- it's just a guess, but I'm guessing that you guys may be-- may have some Revit skills, possibly expert, and very more expert than me probably in Revit.

So you guys mainly have used Revit yourselves? How many of you? OK, quite a few. And how many of you have used CFD? OK, quite a few as well. So it's a little bit of trying to define that workflow. Trying to see if we can get some sort of a roadmap between one and the other.

So in the agenda for today, I'm going to be describing a little bit what the typical Revit model is-- kind of characteristics in there-- then describe a bit what a typical CFD model is and what, really, it requires from the Revit part. Then, I'm going to talk a little bit of how to launch the model from Revit-- different ways of doing that. Then, some tips for simplifying the Revit model, both in Revit and also in SimStudio.

By the way, how many of you guys know about SimStudio or have used same studio? Yeah, not a lot. I mean, was guessing that. But I'll talk a little bit about that as an extra tool within the workflow there. And I'm going to be covering also what challenges we face normally when trying to transition between Revit and CFD, and also what's the kind of list for us technical people to put into product management so they can improve this thing.

And then we're going to see some videos of, like real life examples in there going through all this workflow. There's also questions and answers at the end. I will try to leave some minutes for that, but at any point, just feel free to interrupt me and then ask your questions-- feel free to do that.

So describing the Revit model-- that's a Revit model in there. Looks kind of messy there a little bit. That's a part of a hospital wing. And most possibly, this sounds pretty familiar for you guys using Revit. And trying to describe a little bit from my side, which I'm not the biggest Revit expert.

I can see that there's many different features in here. There's model objects, there's things that you import, then there's this thing about having your model, like attached or detached from a central model in there. There's worksets in there that you can be using and someone else from your company be using in there at the same time. There's linked materials.

There are models that get updated or upgraded in there. You also have lots of different parts. You have MEP parts, you have parts that more belong to the mechanical side. Then there's also the possibility of having linked drawings in there. There's also the possibility of having different views around.

And this-- all of this are the main features that we need to deal with when we want that model to go over to CFD. So the main challenges that you may be asking-- if it's the first time that you want to do something like this, your main question-- so the main parts that are going to be scaring you is like, oh, how much would I want to change my Revit model? Because I'm guessing Revit model is a fundamental piece of your design in there, possibly even in your collaboration with some of your colleagues.

So yeah, you may be feeling, mmm, do I want to change it much, really? Then the other key question is, do I need a completely new model for this CFD part? Then the other question will be how comfortable are you implementing those changes? I've been dealing with people that they have their Revit models, but they don't need to be particularly the one that actually designed that thing.

So they're another part of the company. Most possibly, they're guys trying to design, say for instance, an HVAC system for one of these hospital rooms in this hospital wing. So sometimes, they're not that comfortable implementing those changes. And then the other question that normally comes up is, within your design and going over the CFD when collecting results, do I want to implement changes in there? Do I want to do any sort of optimization, and how would that work?

So these are the challenges that you'll normally be facing there. So in terms of the other side of the wall in there, there's the CFD model. So to describe a little bit what a CFD model looks like, there you have the hospital room there. This is the interface of CFD. Usually the workflow for setting up a CFD analysis works on the basis-- and on the left-hand side, you can see the design study bar.

So we normally go from top to bottom, or within this setup task, we go from left to right. This is the normal way of setting up a CFD model. So you need to define things like materials, the boundary conditions, mesh, getting some settings together. It's just pretty intuitive. It kind of makes sense.

We're going to see just briefly a little bit later how you do this. But in reality, it looks like this. Well, first thing that may surprise you in here a little bit is that, well, there's quite a little bit of detail in there. There's like-- there's my hospital room in there. It contains the wheels. There's a little bit of a faucet in there as well.

So first thing to have it clear. CFD is not about, like turning your whole Revit detailed model into just a box, or a couple of boxes. CFD can read detail. So in terms of the requirements and the specifics that you should have in a CFD model, you need to take into account that CFD is a simulation software, so it works mainly on fluids and solids, and that interaction. CFD stands for computational fluid dynamics, so it's about the fluids and the solids interacting and moving around.

In order to do the simulation, you do need a mesh. The mesh means that we have my volume and we're going to be dividing your volume into just small pieces in there so we can apply our numerical equations in there. So it needs that mesh, and because of that, we need a volume of control around. So in this room, it is going to be the volume marked in red. So that's going to be the air around the room, which those are things that you normally don't model in Revit.

So for that, we do need to have closed volumes, so that's one of the requirements. It will be enough for CFD to identify that they're closed volumes. As long as you have a closed volume, the CFD can actually automatically void fill that part. So not a great deal, but we do need to have a volume that is completely closed in there.

Then another important item to take into account is relative detail. As you can see in the image in the bottom right, you can occasionally see that we may have very, very big models. Like in that case, which-- what we're trying to model in there is like wind loading and our set of buildings in there. And there are-- the surrounding buildings are modeled in there as well.

But of course, it's only logical to think that the software may struggle or may not lag too much to have dimensions of like, say, 2.5 kilometers times 2.5 kilometers-- like in that case. And then to go inside your building and go into a lot of detail-- same detail as we saw before. If you're modeling wheels that are this big and then you model 2 kilometers, OK, you [LAUGHS] may be having a little bit of a problem in there.

Then the other requirement, or like special feature in there in a CFD model is that you may have areas for refining the mesh, and you can draw those ones in CAD as well. You can actually define certain areas, and then refine your mesh a little bit, like in this case with the wind loading. Then the other thing that you need to be a little bit careful about when considering a geometry and putting that into CFD is sometimes, if you have curvatures and tangent joints in there, you may bump into some points that are a little bit singular geometrically.

Those ones, the software may have some problem in there implementing your mesh. So few things to be aware of. Any questions so far about how the models look like? All right, we move on. Then in terms of the launching of the model, we have our model there in Revit.

And there's actually a little button in there-- we call that "CFD Launcher" within Revit. So if you have your Revit installed and then you installed your CFD, this gets automatically installed. The installation detects that you have Revit, so it installs this add-in.

So we can see how this works here. So you have it under add-ins. You have two options in there. There's an option called "Model Assessment Tool," and an option called "Launch In Active Model." Basically, I've gone for the Model Assessment Tool, so it opens a sort of a middle interface in there before going into CFD.

And this tool, it basically checks your geometry for small details and potential problematic things there. You can detect things like a small interferences like part gaps, things like that. So pretty useful tool because it allows you to zoom in your detail. Sometimes, it's not as easy, so it's not really easy to see where you have your tiny little gaps in there, maybe for like closing a volume, or like tiny clearances in there if you're modeling, say, a door frame within a room.

So it gives us a really good analysis of how the geometry looks like. There's a couple of things to realize in here-- let me pause that for a sec-- and that is the Model Assessment Tool is just a checking tool. Don't take it as you cannot edit stuff in there. It's just only for checking how your geometry looks like.

If you actually identify a problem in there, you possibly need to go back to your CAD and then go there-- whatever the assessment tool is pointing you to. That's one option. The other option is launching the model directly. So connecting directly the Revit with the CFD. In the Model Assessment Tool, once we have everything, we click on the transfer to set up, and then it opens CFD.

So it basically gets the model, goes through these checks or it can go directly, and CFD understands the Revit model that you've sent through. There's one important thing to notice in here once we get our model, and that is that the-- there's one line in there in this window-- going to point to that now. It says, like there was one additional part generated, and that's that part, the one marked in red. So that means that the software has actually void filled that internal area.

So it's good. It saves your time not having to define that thing within Revit. If you have the gross volume, it will automatically void fill it. Then another way of taking your model from Revit will be to export that in our external format. There's few formats in there that you can see. You possibly are familiar with this thing.

So under File, Export, you can go to CAD Formats. And a really useful one is the ACIS-- that SAT file. This can be opened directly in CFD. So if you bring up the software, you can go to File, New, and you can actually load up the geometry, so you won't need to have the actual Revit file. You export that into an external format SAT file. This SAT file can also be exported to this other tool called SimStudio, where we are going to be doing some modifications as well.

Then in here, SimStudio is basically a CAD tool that comes directly with the simulation software-- with CFD. It also comes with things like the mechanical and model flow simulation tools. It's basically a very simple CAD tool to modify, and simplify, and launch our model. So you can take this as just an alternative-- an easy alternative to do some modifications.

You can modify your Revit model, and then you can do some final things here in SimStudio, and then launch it. This is, in fact, the-- this workflow-- this kind of hybrid workflow is the one that I'm going to show later on. So in here, you can load that exported file from Revit. It gets really well understood.

And two good things about SimStudio here. The first one is that it's a simple CAD tool where everything is kind of like detached. Everything is just completely independent. It just reads the surfaces on the volumes, so you don't bump into these problems about, like linked parts, and detaching things from central files, things like that.

So it makes your life easier on that sense. And then the other good advantage as well is you also have the launching part-- as you can see there, we have the launching part also incorporated. And CFD understands really, really well the models from the SimStudio. That is going to be playing to our advantage in terms of the associativity we have in there, because it will be recognizing really good names of parts and things like that in case you want to change them in an eventual model change.

So in terms of workflow for simplifications which are more or less the normal key tools that we can use, this whole thing goes around one very, very important matter in here, possibly the biggest key part of the presentation. This key part is that CFD will get only the active view that you see there in Revit. This is a big, big advantage in there.

It plays to our advantage. Why? Because we can be playing around graphically there, like hiding things in a specific view, defining different views and stuff like that, not needing really to modify all the features that we have around in Revit, which is really nice because at the end of the day, those features are there-- or I'm imagining they're there for a reason.

So you don't want to be deleting stuff-- deleting your stuff, modifying things. Then you're going to get a lot of complaints about people-- oh, where are the-- where's the piping in there? People have got the piping out because the model needs to go to CFD, so I kept the piping out. Well, you can do these things only visually, and then CFD will understand that, which is a pretty good advantage.

And following this, what we can easily do in Revit is, like if you go to View, you can basically duplicate your view there from the general one. And you can see there under 3D View that there's one in there, and then with this copied one, you can start doing your things in there. For instance, you can select quite a bunch of things in there, and you say, OK-- you hide that-- hide your elements.

So you build basically your tailored view there. So the key point-- the first part of the workflow will be let's set a view that is called something like CFD export or something, where you can do your little tricks. So easy enough so far. You can generate that view-- start applying your simplifying tools.

This also, by the way, applies to the models when you launch them into-- when you launch them into CFD, but it also applies when you export things as SAT files. Same thing-- it exports the active view. So another tip for simplifying there. Easy-- hiding elements. You just hide your elements in there. You hide that element, it will not make it to the CFD model. Really simple.

Then major step in the model preparation. That's my personal favorite in there when I started working with complicated models is that-- OK-- sec. You can basically go to your 3D View properties, and then select a section box. This allows you to basically crop the whole model, and then get only the parts you really want, which in this case is huge advantage for us.

We have a full hospital wing in there, but in reality, I only want a hospital room. I want to do a simulation in there of the flow, and how the flow goes around that particular room. So it's about really simple-- starting pulling and getting my section box in there. You can change views and start tailoring your thing in there. Really easy again.

Then another one of the key tools in there is using the levels of detail. Again, something that may look-- may sound really familiar for you guys using Revit-- using levels of detail, it's basically again visualization tool. So you are allowed to include elements, and within the properties of those elements, you can say, OK, this element is only going to be featuring on a specific level of detail.

And you have course, course, medium, and fine level of detail. Really good, really easy also to get an element in there, check the visibility, and then you can tick on or off, so it features in one of the views or not. The other-- good thing as well is that you can even draw specific things into a level of detail. Say, for instance, we have a window and normal templated windows in Revit, they can have quite a little bit of detail. It's normal because it follows the industry standards.

But sometimes for CFD, we want to basically draw just a simple extrusion in there. You can add that to a specific level of detail, so it is really good. So it's going to be great because you can have your full Revit model. But just switching the level of detail in there will actually get the model that you want over to CFD.

And another tip for simplifying really simple as well is to close the gaps. Revit normally contains quite a few gaps there. The critical ones are in the doors in there-- door clearance. So just editing the families in there, you can basically-- as you can see on the right-hand side, you can get the reference lines, and then get rid of those clearances in there that you have in this case. You have them on the frame. You have them just behind the below the door too.

So challenges and the workarounds that we have [INAUDIBLE] simplifying tools. Sometimes, you may feel that some materials they seem to be like-- when you export, that they seem to be missing in there. This was basically an old problem that we used to have in there in Revit. Up until Revit 2017, there were some MEP parts that were not going through properly.

Yet, now in Revit 2018, this has been sorted so it works much better. Then another challenge, as I mentioned, will be to try and detach things from the links-- from links in Revit. And then one thing that could be a little bit challenging is the associativity, meaning the CFD interpreting correctly the actual names of the parts and stuff like that.

And associativity, unfortunately, seems to depend a little bit on a few things there. In particular, we need to be aware of having linked drawings in there-- having DWGs in there. It seems to affect the associativity somehow. When talking about the associativity and recognizing the parts that you have that changes-- if you do changes of the model and you follow that path as I mentioned-- like doing some basic simplification in Revit.

And then if you take your model over to SimStudio, the good thing is the SimStudio parts, although they don't have the original names from Revit but those new names in SimStudio, they get kept in CFD. So in that sense, the associativity works pretty well. So it can be considered an option when-- if what you want to do is do a lot of design changes.

So in terms of how we see the future and what would be our wish list in there for improving the way it works-- including like MEP linked materials. And now, they work pretty well. Most of them, they get over OK.

Then one question that we get every now and then from people is, like how to link the actual material properties sometimes that you have in Revit, and make CFD somehow understand that? Can be challenging because properties looked at from the point of view of an architect may not be the same as the properties from the point of view of doing a simulation. But something that can be worked on.

In general, the associativity has improved in there. And then there's one very important thing to mention in there, which is that the-- no other CFD software will understand the Revit model better than Autodesk CFD. Revit being a software that is very tailored for architectural design presents some challenges in there. So far in Autodesk CFD in-- if you wanted the CFD software-- CFD analysis will be definitely the other recommended choice in there.

So there's some videos in there of this example that I told you about. I can talk you through a little bit of the changes that we made in here. We start actually from this part-- I mean, you could see how easy it was to get from the whole hospital wing into generating this view which is a little bit more simplified. What I'm going to do is-- we simplify that even further using this section box.

So what I'm doing basically here is we're cutting out a room in there, because we want to establish some flow within the room with a certain temperature, and we want to measure how the air moves around the room. So ventilation and thermal comfort in a model like this, which is a hospital room, is kind of key, really. So in this case, what I'm doing, or what I'm showing in here is this sort of like hybrid workflow that I told you about. You could have easily-- applying exactly those examples that I put in the previous slides, you could have closed the gaps in there within Revit, generate your extrusion on top, actually, for the ceiling there, and then launch it over. Easy.

And in this case, we're going to take this file-- neutral format-- we're going to take that, open that in SimStudio. You got to do the final couple of things in there really fast, actually, because the things in there in SimStudio are pretty simple. You can grab surfaces, press, pull them. In here, basically, I define a plane. Within that plane, I define a little box to just put a kind of a lid in there into the room.

And after I defined that box, I have the ceiling of the room completely sealed there. Very simple to draw that box in there. And then what I do is focus, as I told you before, on the door in there. You can zoom in and you can see that there's a clearance in there-- a clearance in there on the sides with the frame, and then a clearance just below the door. It is as easy as selecting a surface, pulling that-- you can even snap it to a point in there.

So basically, close these gaps. Really easy stuff. So again, easily done as well within Revit. You have your scales in Revit. You go there, you edit your family, you change the reference line, that's it. Easy as well. It's about giving you-- trying to give you some alternatives in here.

So really easy. We can close this. And then when we have the model, we can actually launch start, clicking on the launching model. So we get that over to CFD. Once we get into CFD-- really, really briefly as well-- we just select materials, start editing materials.

You can define your different materials around. I selected most of it and selected concrete. But then for those parts here that are basically glass, you go down, you select glass for your material. It's about assigning your materials. Then you define the air, then you set boundary conditions, and you're going to be setting up your model.

This is taking you a little bit fast into this, because all of this is pretty standard procedure, so we wanted to focus on how the Revit model got understood in here. Just to show you a little bit-- a few of the picks and clicks that you need to do once you get your model over. So same way as you define your materials, you can be defining also boundary conditions. Selecting certain surfaces and then say-- well, in here, I'm still defining the materials, but let me see.

In there, you can select a surface and say, OK, this is going to be an outlet. And in here-- I don't know if you can see properly there a surface-- that's going to be the inlet in there of my flow. But basically, you actually leverage the geometry you have, and start setting up your little things in CFD.

One thing that I want to have your attention into is that once I set up my model there-- actually, let me go back in here a second. At the very end once I set up my boundary condition, then I go to the meshing part, and basically, I click on Automatic Sizing of the mesh.

So basically, the software recognizes all the detail that you have in there, and assigns the mesh sizes automatically for you, just checking the type of geometry you have. It checks geometry, relative dimensions, it checks curvatures as well, and things. So it's a pretty intelligent tool to try and come up with a nice mesh distribution around.

In this case, it estimated in there like around 5 million, more or less. In fact, I actually follow that through, and it generated a mesh which was like 3.5 million, I think. But what I want to show in this little video here is that this will be good to convince you that-- to be honest, in all these videos, I didn't do any picks and clicks before or after, or in the back. It is as it is-- as we had the model in there.

So the good thing is CFD if they can understand quite a lot of your detail. Then of course, another question is do we want to be practical in there? Is it-- are some parts really necessary? That's the point where you can start playing around with level of detail. Hiding your elements in there, doing even the section boxes to take some parts out maybe.

But I wanted specifically to show that if you actually go for almost a full-blown in there of your room, CFD has the tools to understand it and mesh it. So in reality, doesn't look really too hard, right? You have your Revit model, few simple tools, and we are there.

Then if you want to be really, really clever about things-- of course, it may take a little bit extra time to be a little bit more practical and maybe say, OK, some of the wheels in there-- in the bed-- OK, I'm going to make them a little bit rougher to save a few mesh elements. Well, up to you. But at least you have the choice.

So now, you can see that you can go for the detail. So then final product in there. What do we see then when we do this CFD analysis? This is room analysis that I performed based on some data I received from some customer over in Spain. And they wanted to measure thermal comfort within that room, even considering things like the air contains some humidity there.

So we can actually check quite a few results in there. We can-- there's a lot of ways of harvesting your results. You can change variables. You can see how the mesh goes there. You can see things like cutting planes. Within those cutting planes, you can see the vectors and how the velocities go around.

So once you have your analysis solved, you can get quite a lot of things in there. You can have a lot of insight into your model once you have your results. You may even have, like ISO volumes in there of-- like in this case, I wanted to measure relative humidity there. They had a few problems in there, like through the clearance of the door in there.

But you can see quite a lot of things. You can even see how the flow goes around the room. I know the software can generate animated streamlines so you can see that those streamlines actually go with a velocity based on the residence time of those streamlines. So plenty of information that you can actually get from the CFD study.

And then this one is a CFD study based on that particular room that I simplified. So we can actually see that the air comes in. There's a certain velocity, and it goes around the room, and it goes out. So plenty of results to get inside-- to get from the analysis then. And then next step-- when we actually have the results in there, next step will be thinking about that, taking decisions.

In some cases, they will be taking decisions based on how can we modify this thing? Is it worth modifying the inlet? Is it worth moving around my bed so it doesn't get really affected by the airflow? we. Can implement all of those.

Key point in here that I want to-- key idea that I want to put through to you is that it is not that complicated. You can go from your Revit-- few simple tools, and you'll have your model ready for the CFD. I know-- a lot of information in a short time, but any questions about this? Yeah?

AUDIENCE: [INAUDIBLE]

GILBERTO FERNANDEZ: You're asking about-- and I'm repeating because if it gets recorded and stuff-- you're asking about if it will be the same for wind tunnel type of studies, but in an urban scale? Yeah, it will be exactly the same. You will eventually need to do similar modifications, meaning like you will be cutting-- if you have a bigger model, you will be cutting your model using section boxes. You can hide elements that you don't want, really.

And the only thing will be that if you have sort of like an open model there, you will need to-- well, there's two options. You will need to generate the outer volume to somehow have a volume of control in CFD, or there's another option which CFD allows, which is that see if the allows you to bring a model, and then build the external box within CFD. So you can have that model and you can build your external box. But all the simplifications that we've talked about apply.

And also again, let me stress that apart from playing with things like levels of detail and stuff like that, the detail that CFD can understand nowadays is surprising. We can understand quite a lot of detail. Of course, you need to be-- I wouldn't say clever enough to do these thing is practically, but you'll need to consider that for very big models in there-- very big in your dimensions, if you want to go for a lot of detail within your particular urban development, you may end up with a model that is a little bit big.

But again, now we have quite a few tools to run the analysis. We have even like cloud technology so you can leverage really powerful solving computers in the cloud. We also have distributed solving so you can leverage the power of different computers within your network. So there's quite a few tools you can use, but essentially their philosophy around it is the same. Yeah?

AUDIENCE: [INAUDIBLE]

GILBERTO FERNANDEZ: Yeah, exactly. The workflow in terms of setting the materials, you will be following those setup tasks exactly the same as you saw in the CFD interface. Yeah, it is the same thing.

AUDIENCE: So it can then remember if there's a lot setup with, like a material set [INAUDIBLE] and then I make a design change? Does it remember those objects [INAUDIBLE] larger, smaller, which shape?

GILBERTO FERNANDEZ: Yeah. To your question about if the software does have this sort of memory-- if it remembers your setup when you implement design changes, the answer is, yes. That's actually one of our really strong points, meaning it is as simple as-- within CFD, the whole structure is organized with one thing that is called a design study, which is kind of the container of the whole study, and then you have designs and scenarios. Designs are-- they allow you to have multiple different geometries in there. And even within the same geometries-- within every one of the geometries, you may have different scenarios.

Typical change of scenario will be like changing a boundary condition, meaning you change the conditions of the problem, but you're not changing the geometry. But you can do both. You can actually change the geometry too. This links a lot with the associativity that I talked about.

That associativity will be the key part when you do a design change. If you do a design change, you have to rely on the computer identifying properly the names of your parts back. But I mean, we can do it and there's actually examples on that. There's actually one thing that I want to mention in here, which is further information that you can leverage here. There's CFD Online Help, Revit Online Help.

I can make this-- the presentation will be available in the AU website, so you can actually get these links. And there's also a Knowledge Network, which is really important to get workflows, get answers to your potential problems in there to troubleshoot. And then there's also two really good channels in there on YouTube-- Building Solutions and the Simulation one. Visit those.

There's plenty of things, plenty of videos. Actually, we have a lot of videos that we actually put there ourselves-- webinars that some of my colleagues have done, and they actually take you through a lot of different workflows. Things like, for instance, how to do smoke dispersion, how to do, for instance, wind loading, like urban development stuff, external aerodynamics. There's quite a lot of information in there.

AUDIENCE: About the gaps in open families, [INAUDIBLE]?

GILBERTO FERNANDEZ: Yeah, definitely. You can basically use these families. You can basically close those gaps. You can use Dynamo. In reality, any tool that you feel comfortable with. I wanted to give you the actual-- all the alternatives in there-- possible-- that we have nowadays to do stuff.

Of course, that will be relying a lot on your skills with the software, or with Dynamo in this case. As long as you know and that you are aware that the software needs to have these gaps closed, that's fine. I mean, whichever way you choose to do it. But I wanted to introduce this at the SimStudio part, because it's not the typical-- it's not really that known-- can be a useful tool.

In particular for one of the customers, what I did-- one of these walkthroughs. Yeah, she was OK with Revit, but she especially loved the SimStudio part, because whenever she had a problem in there, that-- oh, well, this gap is not quite closing in here, or I don't know how this architect-- like, colleague of mine has drawn this. I prefer to go to a fully detailed sort of tool and start playing around with it.

The other good thing is once you take your model over to SimStudio, you're not disrupting too much the whole Revit thing. You may have a big bunch of people using, say, collaboration for Revit or whatever, and then your colleagues will complain. [LAUGHS]

AUDIENCE: [INAUDIBLE]

GILBERTO FERNANDEZ: Yeah, it is possible to have another model. In most cases, the most obvious thing will be to have different view in there. You have the different view, you play around a little bit with it, and then you do your stuff. Yeah?

AUDIENCE: [INAUDIBLE]

GILBERTO FERNANDEZ: That'll be-- yeah. To have an automation or an API-- yeah, that'll be actually a great idea to have that. It would need to be kind of customizable of course, because there's a lot of sort of variables involved, but it's such a very good idea. Actually, one other thing that I can mention in here-- and further information-- and I've been to some other classes, and they've mentioned that-- and even in the technology keynote this morning, that was one of the first things in there-- do get into the idea forums in there-- idea station-- idea forums in there.

We definitely do check it. We're going to check it even more now that the senior VP has been talking about that. But it's a really good place to actually share your ideas for enhancements. It's really good. Any other questions? Well, thanks a lot for attending.

[APPLAUSE]

And then I'll be around today and tomorrow. If you want to-- if you bump into me and want to ask any questions, that'll be fine. Thanks.