Models change rapidly at various stages of the project, and it can be useful to review model status between different revisions of the models. What changed? Why?
There are a number of Model Compare tools out there, Navisworks has one built-in and there are addins for Revit. But what if you just want a quick visual check?
Here is one method using Revizto…
Using Two Instances of Revizto and the Issue Tracker to Compare Models
Open two instances of Revizto and put them side by side on your screen (large monitor will help)
On one of the instances, go to Project -> Revisions and open a previous version of your model
You can now navigate between two different versions in these two instances
The issue tracker data is always up to date, so you can use the Issue Tracker to co-locate yourself in each file and check the differences. Just click on the same issue in the Issue Tracker, and then click on 3D to visually compare the models. Obviously, you can also enter data and snapshots into the Issue Tracker as per usual, perhaps to comment on why a particular model changed between versions.
Essentially, this idea was to launch two instances of Revizto and use the Camera Share tool to navigate the same model between them. It was a bit more involved, and it requires you to have access to two different login accounts for Revizto, and two different login accounts for the current machine, and Revizto is installed ‘For Everybody’.
(needless to say that you should be careful to protect the password above)
Open Revizto normally and login
Run this CMD file, and in the new instance of Revizto you can login to a different Revizto account
Open the same Revizto project in each
You can now use the Camera Share tool to ‘drive’ both instances simultaneously. Pretty cool!
In one of the instances, open a previous Revision of the model
*This is where the idea fell down, as Camera Share no longer offered to share camera between two different versions of the model :)* Evidently, it won’t let you navigate non-similar models at the same time.
I re-tooled the steps above from my previous post about logging into multiple Autodesk logins at the same time:
Aerial imagery and 3D models are extremely powerful visual tools. Often, these are used primarily in early design and master planning. Some software tools connect directly to aerial imagery and 3D data providers. Unfortunately, Google has not really opened up the connection to their base 3D data. But we can capture imagery from it, and then rebuild in another photo-to-mesh tool, like Recap Photo. Keep in mind that you will be creating a 3D mesh, from an isometric 3D world view, which was created only from aerial images. Basically, your output will vary, and will probably not be high quality. But for the intended use in early design and master planning, the below workflow may be useful…
Note: Please investigate the license and copyright of this data for such use.
Open your desired 3D isometric aerial imagery in desired application (such as Google Earth, Google Maps or similar)
*Note: User to be aware of relevant copyright restrictions
Open ScreenToGif (downloads here). This is used to create snapshot images of the screen very quickly.
Setup the scene, so that you have the ScreenToGif window appropriately overlaid onto your actual imagery
Start recording, and slowly orbit at least 360 degrees as shown
In ScreenToGif, open the image folder
Convert the images from PNG to JPG (I used Irfanview Batch Convert)
Load into Recap Photo, make new Object project, spend 12 cloud credits and start the mesh creation
After meshing, in Recap use the measurement scale tool to scale the model based on the distance between two known points
Export the 3D Model from Recap. Various formats are available. In this case, I exported directly to FBX with Y-Up and imported straight to Revizto. You could also import FBX to AutoCAD and then to Revit, or you could bring it into Meshmixer first to delete some parts of the model via OBJ.
In Revizto, the direct FBX import looks like this:
Sheet overlay in Revizto. Simply with a PDF and some freely available aerial imagery, we now have a 3D collaboration workspace ready to go:
In the latest Revizto update (version 4.6.3, build 41736) you are able to change the UI scale in the General settings. This is very useful for 4K screen resolutions:
You can also set the Default Launch Screen as shown above.
The ability to update existing viewpoints is also present. You navigate to a Viewpoint, then as you move away from it a update icon will appear next to the viewpoint name. Just click that icon to update the Viewpoint. The video below shows this in action:
Recently, I was involved in the development of a construction animation with my colleague here at Virtual Built. The end result was very good, but I observed quite a few challenges he faced along the way. For example, to get the data in we had to manipulate and modify quite a few things. We had a city model in FBX, but it was difficult to work with. My colleague had to add a lot of content to the animation to make it realistic, and then he also had to do some significant post-processing work to end up with a convincing end result. To achieve this, we used about 4 or 5 different software packages. At the time, I was thinking “surely we could produce something more easily and quickly in Lumion!“.
Right now I am pleased to be able to have a look at Lumion 8 in detail in this review, and I will be thinking about how Lumion could have optimised or assisted in the animation production. As you know, I have written about Lumion before, so let’s focus on a few major headings:
What Key Features in Lumion 8 can be used to really enhance and present your design? How could we quickly apply these new features to some existing workflows?
More links for Lumion 8 information
How to apply the OpenStreetMap patch?
Video Tutorials and Webinars
Graphics Card Hardware recommendations
Release video and first renders in Lumion 8
Key Features of Lumion 8
Let’s go through some of the key new features one-by-one. Firstly, I used OpenStreetMap to bring in some city context, then opened a model in Revit 2018 and used the LiveSync addin to bring the model into Lumion 8. This took about 40 seconds on my machine, as the video below shows:
Then I cleaned up the OSM City Model a bit (inside of Lumion) and positioned my model. I hid the Topography in Revit, and it immediately and automatically was hidden in Lumion (nice).
Now it was time to try out some of the new features of Lumion 8!
What it means: “No more hunting around for the right effects. Gone are the days of meticulously balancing sliders. Once you dress up your 3D model with Lumion materials and objects, just click the Styles Button and select an interior or exterior style. In an instant your design becomes a beautiful render with a carefully balanced effects combination.”
How I used it: In my case, I used the model I had running in LiveSync. Styles is part of the Photo capability of Lumion, so to use it:
click the Photo button
click the Style button
choose a style
be amazed at how quick and easy it was to get something that looks great 🙂
Here is an example of the “Color Sketch” style. It amazed me how this transformed a somewhat bland image into something that had a kind of organic and architectural feel.
Here is one of the ‘hero’ shots showing the Styles feature:
Sky Light daylight simulator What it is: Ready to render? If you haven’t added the Sky Light effect, then…well…no. Maybe not. Because it’s an impressive technology developed especially for Lumion 8 to heighten your image’s sense of environment, realism and depth. Sky Light is an advanced, daylight simulator for softening and dispersing the scene’s environmental lighting. Used in combination with Soft Shadows and Fine Detail Shadows, it strengthens the real-life interplay of these elements. Watch as the foliage and trees become photorealistic, and discover as people, buildings and landscapes suddenly look like they belong where they are.
How I used it: I tried out turning Sky Light on and off with different Photo Styles. It is one of the FX options, as shown below:
Here is another example of the daylight simulator:
Soft and fine shadows What it is: Designing realistic shadows, whether from scratch or in a rendering program, may be one of the most difficult things you can do. Until now. In Lumion 8, you can inject realism into your render by turning on the Soft Shadows and the Fine Detail Shadows as part of the Shadow effect. Instantly, the shadows become softer, the penumbras grow. Hundreds of fine detail shadows are enriched and a realistic sense of depth permeates the image. You’ll feel yourself smile as you view your unbuilt design looking uncannily like the real thing.
How I used it:
I tried it out on my sample model. You find these options under the Shadow FX of the Photo toolkit. In the image below, the Soft Shadows are shown as the sun hits the floor, while the Fine Detail Shadows are showing the foot path outside the building with more clarity. So in a scene that was more developed, these options can really make the overall visual more clear and appealing.
Here is another example of soft and fine shadows:
Hand-drawn outline effect (Pro only) What it is: Lumion 8 makes it easy to clearly communicate the form of your design with the “hand-drawn” outline effect. Apply it together with photorealistic, sketch or artistic effects to draw a focus to your building’s general shape and form. It’s the bones of your design, rendered beautifully and easily.
How I used it: You can add the Outlines effect from the FX button. Once you have added the effect, you can fine-tune with the 3 sliders. I found that increasing the Outline Density really helped to punch out even very thin elements in the scene.
Here is another example of the Outlines effect:
Soften hard edges (Pro only) What it is: In real life, the edges of any surfaces generally appear slightly rounded or worn. They are never perfectly sharp. With the new edges slider in Lumion 8, your model will take on a more natural and weathered look, one better representing the real qualities of physical homes and buildings. Impart age and realism by smoothening the edges of adjacent faces. Soften the corners of brick, concrete, wood and other materials. A simple slider movement, a more realistic building. Easy. Effective.
You can check out an tutorial of how to apply this Material modifier here:
Here is a comparison image of the Soften Hard Edges feature:
“Look at fixed point” for the handheld camera effect
What it is: Create an impressive first-person video and never lose sight of the most important parts of your design. As an addition to the handheld camera effect, the new “Look at fixed point” option in Lumion 8 lets you lock the camera onto a single target point.
Check out this video of the ‘Look at fixed point’ feature:
We have just looked at a few of the key features in Lumion 8, but I think you will agree that yet again, Lumion brings new productivity features that are also artistic and professional. I recommend you give Lumion 8 a try, and keep in mind that some of the more impressive features are available in the Pro version only.
Below I will include some links and more information about Lumion and Lumion 8. You can get it here.
With Lumion’s OpenStreetMap (OSM), it became possible to instantly surround a project with context. OSM was also a beta feature still in development and it used a third-party service to import accurate map and building height data.
The third-party service has announced they are closing down, and on February 1st, Lumion will no longer be able to download the map and building height data.
In light of this news, Lumion developed a little tool called the “OSM Patch” to ensure continued map functionality.
Click here to download ‘OSM Patch’ for ‘Lumion 7.5 Pro’. Click here to download ‘OSM Patch’ for ‘Lumion 8 Pro’.
Extract into your relevant \Program Files\Lumion 8.0\ directory and ‘Replace’ files.
You should be good to go with OSM
Video Tutorials and Webinars
Expand your rendering capabilities with more video tutorials:
Revizto doesn’t strictly offer an API (yet) for connecting to its data. But you can use the command line to export an Excel file of all of the current issue tracker data. And you could schedule this export as a Windows Task. If you are in the habit of creating custom dashboards and connecting a whole lot of data together (as I am), then this could prove to be a pretty powerful way to access and share issue tracker data with the wider team. Further, it provides an opportunity for accessing model markup information even in a non-cloud-connected state
Here’s how to export from Revizto using the command line tool, called ReviztoConsole :
Get the Revizto Project ID by hovering over the project name in the Viewer:
The command line syntax is like this (notice the project ID):
Revizto works by maintaining a local copy of cloud models, that are synced periodically with the cloud. The Issue Tracker will always try and automatically remain in-sync if an internet connection is available. This allows you to do things like download all current models and sheets to an iPad, head out on site (where you may have no internet) and do some work, come back to the office and then sync the changes.
However, from time to time you may want to clear the cache of a particular project. Typically, this is so you can confirm you are running an identical version to the current cloud model. To do that, you have to clear your local cache of that particular model. Here is how you do it:
1. Sync the model if you have any recent local changes (this is to upload all of your local work)
2. Close Revizto.
3. Open Revizto. While in the project gallery, click on “Edit” button in the top right corner. Then click on that project and choose “Clear cache” option.
4. Open Revizto project. Your project will re-sync with the latest cloud version.
What if you want to completely remove all local project data at once? Or possibly, you are running out of disk space in the normal ‘working folder’ location (yourUser\Documents\Revizto4). In that case, you want to move the working folder. Then Revizto will download the latest cloud data for every project. As above, ensure you have synced all your local models first… Then take these steps:
Click General tab
Select ‘Change’ next to ‘Working folder’ and choose a new, empty folder. It should have sufficient disk space to download all the project data:
You probably should close and re-open Revizto, and then go ahead and open your project. Again, it will sync all data from the cloud for you.
There is a nice little addin in the works from Emanuel Favreau … he is working on a Revit to Unity exporter that includes all materials and textures. You can open a sample model in WebGL here (probably should use Chrome).
There is obviously a lot of development in the industry at the moment to create the best experience in moving BIM models into gaming environments for various reasons, and there are a lot of solutions that are doing this in various ways. Typically, these offer real time rendering and visualization, and the side benefit of allowing models to be viewed in VR. Which method do you recommend?