Walkthrough the process to create photorealistic renders from Revit models using Blender.
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Showing posts with label Revit. Show all posts
Showing posts with label Revit. Show all posts
Creating Photorealistic renders using Revit and Blender
Walkthrough the process to create photorealistic renders from Revit models using Blender.
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How to extract the IFC Files contained on a Tekla TBP Package
Tekla TBP Package extracting is easy using this workflowCatalà - Castellano - Deutsch
I recently received a BIM model for review (It was mainly intended for the Structural consultant to validate what the Metal Structure subcontractor was going to fabricate) and wanted to access the individual IFC files. My idea, because we were having some discussions about the total cost and extra KG of steel that a project change meant, was to import the IFC files into Revit and be able to create a schedule to obtain the total weight of the metal structure. The problem was I could not open the TBP file in revit. Of course someone had figured it out first so I followed these steps and it worked perfectly.
So the trick is to install a program that can open the TBP file and extract its contents. IN this case, using 7-zip, works perfectly. You install the program, then open the TBP file. Inside the 7-zip interface you can browse the folder structure until you find the IFC files and extract them. Worked perfect!.
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Revit: Joining Walls to Extend an Opening
If you want to model as you would build, you might find this helpful.Català - Castellano - Deutsch
If you want to use Revit for the latest stages of design or during pre-constructio, some tools, specially those to create layer based families like Walls, Floors, Ceilings and Roofs might not work for you. This tools were probably designed to speed up modeling but thinking more of an architect's need (drafting plans) than actually Virtually Building your facility in the computer. This problem has been partially solved with the Create Parts Tool. It is a good improvement appeared in Revit 2013, but it does complicate a bit extracting quantities.
A solution to build the model as it would be build on real life is to model walls (or other layer based elements) in parts. That is, that instead of modelling a brick wall with its layers of substrates and finishes in one element, we model them in several stages.
The main problem with this approach is what to do whit openings. A Window or Door will only cut the wall that actually hosts it, right? Well, not exactly. If you have two parallel walls and place a door in one of them, you can extend the opening cut to the 2nd wall by joining geometry of the two walls. See the pic.
Revit: Locking Circles to Reference planes.
How do we lock a circle's center to a reference plane in Revit?.Català - Castellano - Deutsch
Locking linear elements to reference planes is pretty simple, I normally use the align tool and after the element is aligned I check the lock icon to lock the element to the plane. But if what we want to lock to a plane is a circle, it is not so straight forward. The trick to do it, is to unhide the circle center mark.
To do that, you need to select the circle, and go to the properties tab and check the Center Mark Visible checkbox to unhide the center mark. After you've done that you will see a cross at the center of the circle that will allaow you to lock the center to one or two reference planes.
Revit: Converting a Wall Based Family into Face Based Family
Convert a Family that was created as WALL based into a face based family.Català - Castellano - Deutsch
I have to apologise for whoever wrote this somewhere but I didn't store the link to give credit to. Anyways, lets go with the trick. I donwloaded a Radiator Family. I tried to put it in my MEP Model. It didn't let me. I Checked. It was a Wall based Family. I could have created a new one, but it was an ok family. I wanted a faster way around. And so, checking aorund (again sorry to whoever wrote this first, I don't remember from where I took it) i found this trick. First of all. To know if a family is Wall Based or Faced based we can check it in the Family Editor.
- Open the Family
- Got to Modify Tab --> Family Category and Parameters --> Scroll to the bottom of the Family Parameters Area
- Create a new Project A.
- Model a Wall
- Insert the Wall Based Family A
- Save the Project as Project A
- Create a New Project B
- Link as a Revit Link Project A into Project B
- Go to Collaborate Tab --> Copy / Monitor --> Select Link -->Pick Project A-->Copy-->Select Family A on the screen --> Finish
- Select the Copied Family A-->Modify Tab-->Stop Monitoring
Test on Running an IFC Based Clash Detection using Revit
I tried this and it is not a pleasant process. Català - Castellano - Deutsch
So on the series of quick testing clash detection features using IFC files, I decided to give it a try with Revit since it has an Interference Check function. What I learned from the test is that it is not the right software to do this (specially having free alternatives like Tekla BIMSight). Anyways here is the quick video on the process and below a short description of the steps. If you want to skip this one, feel free, summary is, I wouldn't use Revit to do this.
- Open ifc file A
- Save As Revit File A
- Open IFC File B
- Link Revit File A in it
- Run the interference check
Revit Families: Brazilian "Tubulao" Family
A particular type of foundation used in Brazil. Let me share it with all of you.Català - Castellano - Deutsch
I've been working in a huge residential project in Brazil. Great thing of working with projects in other countries is that you get to learn new ways of building. This one I am sharing is a type of isolated foundation called "Tubulao". It is a sort of thick bored pile, that has the peculiartity that a worker goes down the excavated circular pile and enlarges the base to give it more support area. Kind of crazy when you see the pictures, but realitevely easy to model in Revit. See a couple of images of the Tubulao and then let me share the family with you.
Image Source
I modeled the family quite easily with a couple of extrusions and a blend for the Cone Frustum. Then, added some parameters to control the diameter of the base, the diameter of the pile and the height of the Cone Frustum and the total height. See a couple of shots.
The interesting part is that since the execution of these foundations has two stages (digging the pile with a machine first and then cretaing the base by having a worker go down the pit and manually enlarge the base) I needed the volume of the part that the worker would enlarge manually (Tubulao Vb) in the family. So I had to play with the formulas to get the volumes of the different parts of the "Tubulao". This also helped me to check if the Total Volume calculation that revit was giving me was accurate, which I learned is a step you should always follow. Anyways, this is the parameter window of the Tubulao, where you can see the formula of the cone frustum and all the other paramteres used for calculation.
Here you can download the Family Here
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Merry Christmas and Happy New Year. And a Little Present
Everyone is wishing each other Merry Christmas, or Happy Holidays or whatever, here comes mine with a little present in case you wanna have some Revit fun this holidaysCatalà - Castellano - Deutsch
So what is the present? Well I was wondering what could I model to make a Christmas card and thought, let's do it by learning some stuff modeling a cool and not "normal building". And I ended up with the Collserola Tower in Barcelona by Foster and Partners. The model is not finished, some parts are still in "Conceptual Mass Mode" but in case you feel like playing with it, here it is. Happy holidays everyone, enjoy friends, families, big meals and parties. Let's continue the conversation in 2014!
Cheers!
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Revit: Creating a Basic Wall with Stacked Materials Using the Split Region Tool
Basic walls can behave like stacked walls in certain way if you know how to use the Split Region and Merge Tools.Català - Castellano - Deutsch
Some walls we create might have on one side or the other a change in materials due to several reasons (some waterproofing on the lower part, a wainscoat, etc). If this happens in many walls, we mmight want to model the wall with this change of materials, and we all hate Stacked Walls. So no problem, we cana ctually do it with Basic walls and here is a step by step on how to do it in Revit.
For this example I will use a wall I am using in a project nowadays, it is made of brick as a core layer and it is finished on one side with a sort of Stucco-like material, and the other with waterproofing material. The thing is, the wall is used for a raised floor over a parkign garage, and below the level where the earth fill goes, instead of the stucco-like material, we need to have the same waterproofing we have on the other side. Since the height of this situation is fairly the same everywehere, I wanted to have the two layers (waterproofing until 1m of height and Stucco from there on). Let me show you a couple snapshots of the wall and you will see the final result.
How do we achieve this? Let's see it, the help on using the Split Region Tool found on the Revit Help gives us some hints, but not a good enought explanation as I see it. The Split Region process is a bit un-intuitive. There are two ways to achieve the same:
Option 01: Use Split Region + Assign Layers
Option 02: Create the Two Layers + Use Split Region + Merge Regions
I was going to write each step with snapshots, but I think a quick video will be moe helpful, so here it is. Sorry for the low resolution.
Hope this helps.
Creating Flat Roof Slopes in Revit
Step by step on how to create the slopes of a flat roof in RevitCatalà - Castellano - Deutsch
How do we create the slopes of a flat roof in Revit? Ok let's see what a flat roof is made of mostly:
- A layaer of Light-weight / celular concrete to give the slope to the roof.
- Several layers of waterproofing, insulation, finish, etc.
If we now want to create the roof slopes we have to do two things:
- Manually set the heights of the points we want to set higher or lower than the default roof thickness. To do this, we select the roof object and click on Modify Subelements:
After clicking this, we can on a floor plan for instance, select the existing points and manually change their height. we can also do it by dragging the point up or down on a view)
Once we've set the heights we want to create the slope, we can check on a section view how does it look like. If you followed these steps it will look something like this:
As you can, see, the solpes are fine, but the problem is that the underside of the roof is also sloped, which we don't want, since the underside should be flat. Here comes step two:
- The simple step we need to do to fix this is to Edit the roof Type and tell revit we want the Lightweight Concrete Layer to have a variable height. So edit the roof family type and click on this:
These should be the results (or something similar)
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