Experience the Data Transfer from BIM to Building Performance Simulation

DANNY LOBOS: So we are ready. Thanks for coming. My name is Danny Lobos. I am an architect and PhD in computer science in architecture from the Bauhaus University in Wiemar. And today we will experience the data transfer from BIM software to some BPS platform.

So what is our roadmap for today? We will have some boring theory aspect of what is building the exchange from BIM to BPS. And then we will have action. And I hope you can use software that is already installed on these machines. We'll use Revit, Flow Design, Ecotect. Can you check that it's already on the machine [INAUDIBLE]. OK. Flow Design is already open. If you can also open Revit. And welcome to all of you.

So we will start from analyzing BIM models, adding some more information to some existing files. And then we will slowly translate it into some building performance simulation software.

So the first boring session is why do we need to go from BIM to BPS? So the first thing is during the building lifecycle there are a lot of stakeholders. We have a lot of processes. Probably you belong to some of these stages. We have pre design, designing stage, construction, use, and later we can demolish or we can re-use the building. For this workshop we will be working in this area, from conceptual design, architectural models, and then building performance simulation.

And also, why do we need to transfer information? Just because we have a lot of BIM software available in the market. We have a lot of building performance simulation software from different companies.

Please, come. Welcome. Welcome.

And then finally you have some BIM methods. This name is very strange. Maybe you have heard it before. This is building environmental assessment methods.

So the question for you, who is working on this area, BIM, from the audience? On BIM? OK. Good. In BPS simulation? And any people working on it, BREEAM, DGNB?

So what we are doing today is deciding which formats are the right format to go to this area and then to go to this area. This is more or less what we are working on in this workshop. But this is not a new topic. There are many people doing research since a lot of years. And each company, if you see, each BIM software has some features that allow us to go from the BIM model to some simulation, and allowing to give some credits from some accreditation system.

In this case, Autodesk has some tools for getting some credit in illumination. And [INAUDIBLE] analyzes in [? lid. ?] ARCHICAD also is compliance with [? Israeli ?] norms. And each BIM software has some kind of tool.

But these tools are working very fine. But if you see in detail, they cover just a few aspects of the simulation. And they cover just a few aspects of the energy certification. So that's why we need to have more possibilities to go to another kind of software.

Anyone has tried some of these tools? Here experiencing these kind of tools? They are embedded on the BIM software. So you can use it anytime.

And also, if you go a little bit more deeper on these topics, there are also many, many ways of going from BIM models. They are made on different stages. They come from different people. To BIM software. To simulation. To certification. To some [INAUDIBLE] for energy simulation. So we have a lot of combinations for this kind of exchange.

And finally, we can have something like this. Most of you are coming from this side. You are coming from BIM area. So you provide BIM models to people who are making simulation. But there are some other people that are working just in the simulation. They are here. And they are making a simulation the whole day.

And there are other groups of people that are writing some requirements from any government, energy assessment, or they are making any lead [? bring ?] DGMB assessment method.

And if you can see now, this combination is really, really big. Yeah? You have a lot of possibilities of putting different files for different workflows.

And the last years I was doing some research about what were these requirements, and which was the better software to fulfill these requirements. And then if we have a BIM model, which format can we bring to the other side? So this is more or less what we are experience [INAUDIBLE] in this workshop.

Has anybody seen something like this before? This is under construction. I am putting new information every year, as soon as I hear from you. Hey, I have an experience with BIM [INAUDIBLE]. I have an experience with Revit. Or maybe there is another new software that I don't know. That's why I am putting always new information to this kind of data workflow.

Up to now, there is any questions? OK. So action.

Please open the Revit and the Ecotect software. It should be already installed. They have Revit 2019 and Ecotect 2011. And there are also some files, folders.

And then we do the same workflow as in your PC. So you will find on the data sets for today, you will find the period, the same that I am showing on the screen. And two Revit files, and two DXF and gbXML files.

I think they're on the desktop. Yes. They should be on an access icon on the desktop. And we will open this Revit file.

So this is the experience now. We will open the Revit files, make some exploration. We will add some new features. And then we will make a small simulation of the solar [? pad. ?]

So everybody found the files? OK? So in Revit you just open the Revit building file. It's a very common file.

AUDIENCE: It's like experienced data transfer.

DANNY LOBOS: Yes. This is the name of the folder.

AUDIENCE: It's like the third or fourth one [INAUDIBLE] [? your name. ?]

DANNY LOBOS: Everybody found the files? They're on the desktop.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: So you will see this message, because it's asking about a DWGB file. You say ignore, and continue opening the project. And you will have this. This is a 3D [? contact. ?]

And then in [INAUDIBLE] you activate Show the Mass. I go here to Massing, and click on Activate the Mass. And then you will get this kind of geometry.

Is it working? OK. So we've got context on our mass file. And then we will do a very fast and easy solar pad simulation.

So first, we activate the shadows. Anyways, I am following this instruction. We open the file. We will turn on mass. And then we will have to add some floors.

For adding some floors you will go here to Floor. Floor. Then cross mouse along the mass. And then Create Floor. It's just to have a little bit more [? advanced ?] with this mass building.

Is it working? OK. So then we continue.

Then we will activate the [? sun ?] pad. And then we will use the current settings. If you want to explore a little bit more, you can change the location to Las Vegas. But for this purpose, we will use the settings.

And then in Sun settings, we say, OK. We will choose multi day analysis. Multi-day. I will repeat it. Here we go to [? sand ?] icon and then Sun settings. We choose Multi-day. And then we put more or less one complete year, from January to December.

So we go here. Look, January. 1st of January. And then the end of November. Or December. Sorry.

So this means that we will see the situation of the solar [? pad ?] for one complete year. And then from which time? From 8:00 in the morning until 7:00 in the afternoon. Each week, because we have a lot of frames for a complete year. The ground level is level two. So if you have done this one, then you can press Apply.

The location, you can change it if you like. Las Vegas, Nevada will be there. From the 1st of January to the 31 of December. And the frame interval, one week. Then you will have 52 frames showing the [? sun pad ?] for the whole year. So we say, Apply. OK. And now there will be a new icon here that says, Preview Solar Study.

OK. I will go. There is a question there. I will go.

AUDIENCE: Just cause some people didn't have the mass course.

DANNY LOBOS: Ah, OK. Go.

AUDIENCE: So can you just [INAUDIBLE] back just a bit and show how you [INAUDIBLE]?

DANNY LOBOS: No problem. Everybody could open the file. The file is open. At first, the files, it's not showing the mass at the end, when you open it. So you need to click here, Show Mass, and then it appears.

This is for this file. But if somebody is trying to make a new mass, is creating a new shape, it's also very simple. It's not part of this workshop. But we can do it here. I will deactivate shadows.

So you can go here to in place mass. Put a single name. And then you choose which kind of geometry. In this case, I will make a very single mass.

So we create on the floor. And then finish it with the Create. And then you'll decide what to do. You can make very, very complex masses in Revit. Yeah?

I think there is another workshop too for doing that. But in case you want to explore these options, Revit gives you a lot of possibilities to do complex masses.

So it's fine now? Everybody has the context and a mass for the building. OK.

And we were doing the solar study. So show mass. And then we choose shadows on. We went to Sun settings. We choose the whole year. And then which time, from morning to the end of the day. One week for the interval. And we say OK. And Preview Solar Study.

So finally, we run. And you will see what happens for our building in this context.

Thank you very much. Each step that I am talking is already written on the PDF file. So you can also follow me line by line. [? Either ?] works. It's fine. OK.

So this is a very nice experience inside Revit. We are using Revit. We got a license from Revit. But what happens if I want to do this same experience but in another software, and having geometry, or having a building from another source?

So that's why the next step is to do it in Ecotect. So you will find also the software Ecotect already installed on the machine. If you click on it, you will get a small message. You'll say, OK. And now we will export this file to Ecotect, following this very single instructions.

So we open the file. It's already there. And then we export it to DXF format. We put this name, or any name that you like. And then in Ecotect we will import it. OK? So we will do these single three steps.

So we are in Revit. We will turn off shadows. We will turn off the Sun [? paths. ?] And also, these floors, you don't need it. Anyway, I prefer to have this mass file. OK?

So we have our contexts. We have our building in [? RVT ?] format. And now we are exporting it to DXF from here. You go to File, Export, DXF. DXF.

So it shows you a preview of what is being exported. And then you click Next. You choose any location on the desktop. And we will download a little bit the version 2010. And then we save the file.

So I am doing this step. Export CAD format, DXF. Save on the Desktop. OK. So we are in this step number three.

I will repeat it. We are going to File, Export, Cut Formats, DXF.

Next. And then we choose any previous version. DXF 2010, and then we save on the desktop. Did it work? So now in the desktop we see we have a DXF file.

So now, we will import it to Ecotect. So you open Ecotect here in step number four. Go to File, Import, 3D CAD Geometry. Choose the file, DXF. And then we open it.

So does it [? lie ?] here? Import. 3D CAD Geometry. 3D CAD Geometry in Ecotect. Then we select the extension. In this case, it's DXF.

Now we choose the file. It's already saved on our desktop. And you see here that Ecotect shows you a small preview of what is coming in the DXF file. This is fine up to here?

So the DXF file has really few things coming from the original BIM. If you see here, you can see some layers. You can see some colors. They are very, very small features that are coming from the BIM model to the DXF.

And here, this ultimate [INAUDIBLE] should be checked. And then Open As New. And we are already. So we click in Open As New, and it will take some seconds to merge all these triangles, geometry into coplanar surfaces.

For all these steps that we are doing, if something is not working, on the same folder you will find the exported file. If your software is not working, I have the DXF already in the data sets.

So what did the DXF do? All these planar surfaces are transformed into triangles. And then we are merging all of these triangles to have planar surfaces again. And it depends on the machine. This will take some time.

So this is working on your machines? It's fine? Still working? Oh, here. Yes. DXF. Choose file. That one.

So finally, we will have something like this. You are in the Editor tab. You can switch to Visualize. And then you will have this visualization of the project.

AUDIENCE: Excuse me. How are you orbiting?

DANNY LOBOS: Sorry?

AUDIENCE: How are you orbiting [INAUDIBLE]?

DANNY LOBOS: Ah. With the mouse. I think with the right button. Yes. With the right button you can orbit the file. Right button of the mouse.

And we changed from Editor tab to visualize. And then, in this case, we will set up the location to Las Vegas. Here if you click here above and Load Weather File, I am clicking here on this [INAUDIBLE] icon, Load Weather File, and we can choose Las Vegas, Nevada weather file.

So this is one step. And now we are doing these steps. It says, change the location. It's fine. And then we will activate the suns and shadows.

OK? I am doing this step number five. So the first was File, Import Geometry. I think it is working. Now, we change the location with weather file. We choose Las Vegas, Nevada. It's working. And now we click here on the sand icon. Here on the right side you will find a sand icon. And you will say, OK, Display the Shadows. And the daily path and the annual path also.

Do we have now this visualization? So we go here to the sun icon. There is a sun icon. And then you click on Daily Path, Annual Path, and Display Shadows.

So up to now, what do we have? We brought a file in DXF format that is coming from Revit. But if you use your imagination, you can bring DXF from SketchUp, from ARCHICAD, from Bentley, from any software that you like to use, from 3D Studio Max. Doesn't matter. Most of the software are exporting in DXF formats. So you can bring it into this environment, and then load the weather file. And then we will see what happens with the situation of the illumination and the solar paths by clicking this icon of the sun. This is one possibility.

The other is with the Shift key on the keyboard. With Shift you can change same hour, different days of the years. The first one is just different hours, different change in time in one day. And if you press Shift, you will see the same hour but in different days. And you also can run here with this bar here above. You can change the time, the date, and the month.

Is it working? Fine.

So what we can conclude from this experience is it's possible to bring geometry from different software to this environment. I just want to ask you for your experience in practice. Is happening something with these shadows? Do we need to know a little bit more detail about these shadows?

Now we are taking a look. It's fine. We see our project. We can rotate the project. We can change it. We can see the impact of the shadows in our building. But in some countries there are a lot of regulation about the shadows.

AUDIENCE: In China specifically you have to submit shadow studies with buildings.

DANNY LOBOS: Of course. Of course. In many countries you need to count the surface of the shadows for having the building permission. So you need to count how many square meters is covering these shadows in your site, or in the neighborhood sites. So this is one thing that is still missing in most of the software.

I have heard about some initiatives in Japan, for example, for making plugins to know how many square meters is this shadow using? And, for example, this is a good example. In some countries your building can not put shadow on the public space. It is forbidden.

Yes. Because the people has the right to light. So you cannot put shadows from your building. So this analysis is useful to know what kind of shadow is produced in my building over the context. So a more advanced tool will help me to count the surfaces of this shadow. And then I can make the decision in the early stage, and not have problems later with the building permit.

So did it work? OK. Next. And if you are interested on these shadow topics, here if you change to Editor, then you can activate these shadows on the floor plan, and then also having a vision of what is happening with the shadow on the floor each day and each hour of the day, if you want to go more deep on this topic. But we are finished with this example.

So this is about simple shadows. Now, is it working? It's fine. More boring theory topics.

So normally when we are doing simulations, we need to know which kind of simulation do we want to run in the simulation software. And based on this, we can choose the format of export.

So in this slide I am showing eight kind of simulations. And if you know what you want to simulate, you need to choose the format. And I chose some samples where you can get these formats.

Then when you choose the format, you will see that some features of the BIM model are being exported, and some others not. For example, we got, some minutes ago, an experience with DXF. And we saw geometry was fine. Some layers were fine. The names of the layer colors, all these were working. But there are a lot of things that were not exported. And now we will experience what happens if we use another kind of file. And then we are bringing more information to our building simulation environment.

So we will use this type of file. And we will see that many, many valuable information is coming from the BIM file to the BPS environment. In the case of the gbXML, you have the Revit file. You export to any BPS software. And then you will see some details. It's not perfect. You will see some missing things. But what we are proposing is that fixing this small mistake is really better than to create the model from scratch.

And that is what normally people from building simulation do. They create this model on Design Builder [INAUDIBLE], ISV. They model the whole building, based on photos and DWGB files.

In this case, we are proposing that through this export format we can have most of the building in our good format, and then make some simulations.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: Sorry?

AUDIENCE: Why [INAUDIBLE]?

DANNY LOBOS: Oh, this is a long story. Because each company has some internal specification on their software. And the internal specification of Bentley, ARCHICAD, Revit, normally doesn't fit 100% with the specification of their gbXML format. This is an institution. They are updating the format every year. But sometimes some things on your proprietary software are not the same name on the gbXML.

But this is just a few details. So I just wanted to say that don't worry if you find some things that are missing. They are just a few things.

And for the gbXML format, normally you can get it from the rooms comments that are working in each BIM software. I think most of you know about Revit. And Revit has the function rooms. And normally you use rooms for having surfaces, and counting all the surfaces of the building. And then you can make a scalable of that, and see how many square meters does our building have?

This is the normal use that we are applying for rooms. But in this case, we will use the rooms for having a volume. And this volume will be transformed into a gbXML format. And then we will use it to make some calculations on the BPS software.

So if you see here, all software has these functions. And what this means, if you have a floor plan with rooms, normally names and surfaces, you will export it, and you will get some simple zones and some complex zones. Depends on which calculation do you want to run.

But if you see, here there is a complete 3D model for making simulation. And this is the point. You don't need to create this model again in the BPS software. Normally the people who are working here, people who are working in this kind of software, they create the complete building.

So now we are using existing information from the BIM model to the BPS. So let's make the experience. So we have rooms. And then action.

We go to Export gbXML from BIM. And the steps are very simple. We will open a house that is in all of the computers. And then we will export it to a gbXML file. We will save it on the desktop. And we will explore what is a gbXML file.

So the house is on the [? hand ?] [? out ?] section. But we also can find it in every BIM installation. So if you want to use it in your computer, it's here in Open Sample Files. Open Sample Files. And you will find this [? rack ?] basic sample project. So [INAUDIBLE] already installing any version of the Revit.

So I will repeat the path is File, Open, Sample Files. And then [? Rack ?] Basic Sample Project. Anyway, you can find it on the handouts of this session. And it's called also Revit House.

So we have this small house. Maybe probably you have seen it before. And this house has two stories. It's a very simple house. In the level one you will find some public spaces, like kitchen, dining, living room. And then in the second level, you will see some more private rooms, like bedrooms for a small family. It is fine? We are exploring the two stories.

And then go to a section. And you will see, maybe for first time for all of you, that these rooms that normally we use for the surface, and if you go to a section, a building section, you will see that these rooms has also a volume.

And this is a very interesting aspect from this comment. They create automatically a volume inside the room. And normally, these volumes are adopting the whole shape. Doesn't matter which kind of geometry do you have. They are adapted to this geometry.

So let's export it. My [INAUDIBLE] instructions says, go to 3D View, and then export gbXML with Export Complexity Simple, and save on the desktop as gbXML.

So 3D view. We click on the 3D view. And then File, Export, gbXML. And we click that we use the room and space volume.

I will repeat. We go to File, Export, gbXML, and then Use Room Space Volume. OK? And now you see what is coming from the [INAUDIBLE] model to this simplified format on the gbXML.

And here we choose Export Complexity Simple. Is it working? I will repeat it. We are on the 3D view. And then go to File, Export, gbXML, Use Room Spaces. Then we checked what is being exported. And then we choose Simple.

And then next and we save this on the desktop of the computer. And that's it. Now, we go to this step that says, explore the fire.

So my question now is open. Does anybody before open a gbXML file? OK. Good. So for most of you, it will be a new experience.

And there is a small task for today. Here, step number four says, can you find a door in this gbXML file? So we go to the desktop. And there is this house in the XML file. You see it. It's already on your desktop also.

And you open it with, I don't know. Explorer. And this is what you will see.

It's a very strange format for the house that you already use in Revit. This was the house. And now you have this mass of text and lines.

So I will repeat. We go from Revit to Export. gbXML. Choose Room Spaces. And then Explore Complexity Simple. OK. And then from the desktop, you open it with the right button using Chrome or Explorer.

And now there is a task for you. You will see that in Revit we have some doors. For example, here we have this normal Revit door. There's a double [? flush ?] on the level two. You can find these single [? flush ?] normal Revit doors.

So the exercise is now to find one of these doors in the XML file. You have a couple of minutes to do that. We are trying to find a door here.

Let's take a couple of minutes to do that. Is it possible? Is there any fast method to do that? [INAUDIBLE] not [INAUDIBLE] idea. That's the idea.

There is a faster way to do that, and a slow way, by scrolling the complete file.

Say File. So you can scroll the whole file. It's very, very long. But you can say Control-F and then look for door. OK?

And the idea is that we compare this information about this door in the gbXML file with what we understand as a door in the Revit file is here. And I think this sliding could be this door or another one. OK?

So now you see the BIM file is totally transformed into points, coordinates, surfaces, names under these XML [INAUDIBLE]. Now, we will put it into Ecotect.

And now we have to do a small, small previous step that is explained already here. It says you need to [? modificate ?] the qualification. This UTF 8, we need to get it. So we are doing.

OK. We we are doing now this step, step number three to change the qualification of this XML.

So how do we do that? It's very simple. You go to the XML file. We are working with the same XML file. And we open it with [? block. ?] Not Text [? Editor. ?] [INAUDIBLE]

AUDIENCE: So just right click on that file, and say Open With Notepad.

DANNY LOBOS: Thank you. Thank you. The Notepad. I do it again. Right click. And then Notepad. And then we save as again.

Save as again. Same name. Same name. But this qualification, you change it to UTF 8. And save. OK? And that's it. Now we are able to export this into a BPS environment.

Is it working? I can do it again. So with the right button, open it with the notepad. And then you save as same name. Just change the qualification to UTF 8.

And now in Ecotect you say, File, Import. But not 3D CAD geometry, as the previous experience. Now we say Import Data Model. We go to desktop. We change the type of file to XML. And then we have our XML file. And you should have something like this.

If it's not working, this one, it's because we didn't change the extension. Remember, you opened it with Notepad. Save again. And you changed the UTF 8 code.

And I will repeat how to get it. The importation is import data model. Then go to the desktop. Change the extension to XML. And then [? rack ?] Advanced.

So what we see here is more information, as was promised. We have all the rooms that we have in our BIM model. We have most of the materials from the BIM software.

There are just a few things that are not recognized. If you see, for example, the gbXML file didn't recognize well the concrete column. It didn't recognize something like this single switch. We all know what is a single switch in Revit. It's a door. But the XML file didn't know that.

So we said here, what is everything? So for this door we just click on the single [? flush, ?] and we say, OK, if you don't know what this is, I will tell you. This is a door. And that's it.

But the important thing is that we have our structure of the project. And finally, we say Open As New. Here we click on Open As New.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: For the current it should be wall. Sorry.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: Yes. Because in the simulation software there is no column object. So I import it again. Open. And then I click any material. Say, OK, this is a door. And then Open As New. I don't save the changes to the previous model.

So now you see, we brought these two story houses. And we have all the rooms, the same rooms that we were working on the Revit file. Now they are already done here. We can check here in this zone management, there is a list of the first level, the second level. You can also, say, change the color of this one.

You can also switch off some of them. You can say here they are not going to the calculation. You can make it as different modifications for this file.

So visualize. You can also see. And you will see some details, as I told you before. There are some details that you can fix here on the software later. But the important thing is that we save a lot of time, because we are bringing a geometry that was done from the architectural office. We can update it every day. And we can run our analysis.

So did it work? All of you have this XML file inside of Ecotect? So we follow.

So on the Ecotect. OK. We go to Import File. It's already done. And we load the climate zone, Las Vegas.

You know already how to do that. We go to this icon. And then Load Weather File. And we look for Las Vegas.

And then we go to run a very single simulation for the hourly temperature [INAUDIBLE] profiles. This means we want to know the temperature of each room, each day of the years. We will make this simulation. Sorry. And we'll run this again.

OK. So we go to Visualize. Sorry. To Analyze. Analyze. Just in Visualize you can get the visualization of the geometry. And then in Analysis tab-- we are changing here to Analysis tab on the left side. You will find it here.

Analysis tab. You will run this hourly temperature profile. We change from 3D Editor. Visualize. Analysis tab. We are running this one. And then we choose only temperature [INAUDIBLE] profile, and then calculate.

Now, it asks for the [INAUDIBLE]. You just press OK. And it will take some minutes to make a simple calculation of all the temperatures of each time of the year, of each hour of the day. It will take three or four minutes.

So in between we will prepare the next file. I think we are all right on the time. So we were doing this step.

It will take some minutes. We are running this one. We say [INAUDIBLE] temperature profile. Analyze this. We say OK. And we will wait some minutes.

And in between, while we are waiting, we will advance a little bit of the next exercise that is wind simulation. And the question is open. Why do we need to know about the wind? So it is here.

My answer-- you can have a different one-- my answer is that we can improve our designs with this kind of simulation. And just as an introduction, I will give a small overview.

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DANNY LOBOS: What we see here is the possibility to simulate the effect of the winds on our design. Then we can make decisions. We can change a little bit our design. We can move. We can rotate it.

So the analysis is on the [INAUDIBLE]. We just wait and continue with this part of the exercise.

BIM to wind tunnel. So we use the same file, the same Revit building. And we open the file. You know it.

We will export to FBX format and save it on the desktop. Then we will run the Flow Design software that is already installed on your machine. And we will choose the file. And we will set some parameters.

Just in between, take a look to the Ecotect analysis. It's [? getting ?] running. [INAUDIBLE] on the [? half. ?] Did anybody finish? Not yet?

But this is more than 10% of the analysis. My case is more or less [? half. ?]

So let's come back to Revit, and go to the building. OK. And this one. And we'll export it to DXF format. We are following this instruction. We are doing this exportation process.

So go to Export File. Choose the FBX format. And then save it on desktop. Export FBX.

Did anybody use this format before? FBX? It's a very interesting format for renders, animations. And then we save it with this 2015 version on the desktop. OK.

So I will repeat. We are working with the context on the building. And then File, Export, gbXML. Sorry. Sorry. Sorry. We are using FBX. FBX. And then we choose the desktop, and save.

So anybody finish the Ecotect analysis on the computers? I will wait just one minute to be finished. Because it's already done.

So what is the speed of the [INAUDIBLE] machines here? Is it also working? The Ecotect analysis? This is already done?

AUDIENCE: [INAUDIBLE].

DANNY LOBOS: OK. And here, it's already faster.

OK. So we will see now what is happening with the situation of each room.

OK. So what we see here is a very complex, but easy to understand chart. The chart says, from midnight to midnight, this is the time of the day. And then we see temperatures from minus 10 to 40 degrees outside temperatures here. And selected sun if we choose one later.

And then we will make a small scroll to see different days of the year. And we will see what happens with the temperatures of each room. So I hope you have finished this one. Your Ecotect machines are already finished.

So if you move this bar, you will see that it is changing each temperature of the room on each time of the day. So we see, for example, in December, starting with cold, we can find temperatures from three degrees, up to 10 during the night. But then, about 8 o'clock in the morning here, about 8 o'clock, temperatures in each rooms are getting warm.

And then like at 6:00 PM, they start to go down again. This is in December. And then, if you go to on this location we said Las Vegas. We are having these kind of temperatures the whole day in each room.

So we can sell it now if we go to the Revit small house. We can see what do you think would be the worst room situation here?

There are some rooms that are exposed to temperatures. They have like three fronts. And they are receiving a lot of lights, a lot of heat. So probably this will be the worst room in the house. OK?

And the name of this room is-- level two-- is master bedroom. So the owner of the house will have a very difficult situation the whole year. But we want to demonstrate this. We know about that. But we want to demonstrate with some numbers.

So we choose this room. It's the master bedroom. And it's now on green color. In my computer. In your computer it could be another one.

And we can talk to the clients that some things are happening in his room. OK? So now the client will have more information to make decisions about changing the materials, about making some protections, adding shading devices. So now we can talk with the client, and with the customers with more reliable information to have some decisions.

Did it work on your computer? Did it finish? It was here on the highlight zone. We chose the master bedroom. And we checked the situation during the whole year. OK?

Yes?

AUDIENCE: You [INAUDIBLE]

DANNY LOBOS: Sorry. Sorry.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: Geometry. Because on this room we this [? curtain ?] wall. And the question was, why this [? curtain ?] wall was translated to the border of the house? OK. I understand this is the question.

So the first thing is that we find here there is an element that is single related. That's fine. We have our [? glace ?] here on the surface. But in our exportation process, we choose here by gbXML simple exportation.

If we choose shading surfaces here, the second option, then you will have all this [? slab ?] also created, because this [? slab ?] is creating shading surfaces. That depends on the export method.

And if you run this process again, and you choose surfaces, you will have this [? slab ?] projection also being exported. This is more or less the answer to that.

AUDIENCE: But it does make a difference. Because the [INAUDIBLE].

DANNY LOBOS: Yes.

AUDIENCE: [INAUDIBLE] you change [INAUDIBLE] goes up to [INAUDIBLE].

DANNY LOBOS: Yes. Because we choose the simplify method.

AUDIENCE: [INAUDIBLE] master bedroom [INAUDIBLE] being as bad as it is [INAUDIBLE].

DANNY LOBOS: Of course. Because we have a projection of the roofs. And this projection will create some shadows. OK.

So to finish this exercise, we'll be sure that we are asking for the master bedroom, and take a look to what happened during the year. And as I said before, the advantage of this is that we can talk to the customers with some numbers on the desktop, and then make some decisions about material design and any other aspect.

So we're already done with this one. And let's continue with the FBX export process. I think we were working up to here. We export the file to the desktop. And then we switch the software.

Normally, if you use it in your computer, you [INAUDIBLE] need an Autodesk ID. And this ID must be the same that you're using in Revit. This is the only restriction that you must follow. The same ID should be used for Revit.

In this case, for this classroom, It's already signed into an ID that is provided. So we go to Import. Click on Import. And then in the desktop we choose FBX. And we find it here.

I will repeat. I go to File, Import. And on the desktop we will find this FBX extension. Open.

And you will have something like this. It's like the file is hiding. OK? He don't want to be seen.

So we need to manipulate some parameters. So I appreciate if you follow these instructions. They are already written on the handout.

I will also resize a little bit. So the first is to change the orientation parameters to 90 degrees for the two axis. OK. So first parameter is go to orientation here. Click on orientation, and choose 90 degrees for these two axis, and 90 degrees for the second axis.

I will repeat. We are changing then step number one, orientation 90 for both axis. Here, click on orientation. 19 and 19, and say OK. Is it working? OK.

So the second step in the wind tunnel, set box size fit to the context. Because normally, that first time the box size is very big. So you have to reduce the size to the context. And for doing that, you can use the same tools that in Revit you can explore a little bit the model, and make some zoom, because we need to change the values of this box.

And then click on Wind Tunnel. And you can resize it to fit our context.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: Where is?

AUDIENCE: The box. The box.

DANNY LOBOS: It's here in Wind Tunnel. If you click Wind Tunnel, you will have this wind.

And then with the [INAUDIBLE] navigator, you can zoom a little bit. And then try to resize it as more closer to the file.

The first time it's difficult to get the right orientation, because this 3D view is very unusual. So you need to look at it from different sides to have the right size of the box.

So more or less. So once you are ready, you say, OK.

Is it working? We do the orientation 19 for each axis. And then resizing the box.

AUDIENCE: [INAUDIBLE]

DANNY LOBOS: Sorry?

AUDIENCE: [INAUDIBLE] compared to what you're saying.

DANNY LOBOS: We were moving fast. We have just 10 minutes to finish. And then second step is to change parameters of the simulation, change to meters, and to top view.

Here we change on simulation. We change meters. And then on side we change to top view. These are small changes.

We are in step number three. Simulation. Change to meters. And sides change to top. Here you click on Simulation, and choose meters. And then on side you choose Top.

And if you like, you can, of course, move the plane. And then you decide which [INAUDIBLE] I will run this. Wind tunnel. And then you can change the velocity here. Velocity or pressure.

At the beginning we're just working with velocity. And some people ask me, why there's just a few particles? It's just because here on the setting views, you can decide how many particles, which will be the speed of them. You can accelerate it a little bit. Which will be the size of them? And which will be the length in case of their rays of all lines?

I will repeat this. We go to Settings here. Settings. And you change the count of particles, the speed, size.

And the length, in this case, is not working, because we are working with particles. But if you are working, for example, with lines or tubes, then the length variable will be working here for [? lengths. ?] OK?

Is it working?

AUDIENCE: [INAUDIBLE]

AUDIENCE: I think if you can just kind of-- they don't have the settings. [INAUDIBLE].

DANNY LOBOS: Ah, OK. That could be because they are working with plane. Maybe you have activated the plane. You changed to flow lines. And when you change to flow lines, you have now settings to configurate.

Is it working now? You change from plane to flow lines. And then settings box is open. Is it working now?

Here. From plane. We're working with velocity. Plane to flow lines. And now settings are open.