Archive for December, 2011


M.I.T. for Free!!

December 30, 2011

Ready to augment your education with some M.I.T. steroids?  For FREE!!!.

Check out MITx

Viewed by Forbes as a Game Changer:

Traditional higher education institutes will have to compete with this growing trend and if employers find that self motivated, self educators are better employees and start seeking these types of individuals out,  then the employment options for the traditional University grads will narrow even further. 

Much thanks to Eric Case, my old business partner, for tweeting this on Linkedin.

Sorry about going off topic, but it’s clear the world beyond Revit, is changing dramatically.



View Range and Walls

December 10, 2011

After a bit of frustration today on a project, I asked the kind folks at for a bit of help. The short of it is that walls that are unconnected at 6′ or less will get a projection line regardless of the View Range setting. Once you constrain the top of the wall to a level then it abides to the View Range settings. Not sure why this is, but its just the way it is.

From Revit Architecture 2011 User Assistance:

Walls shorter than 6 feet (approximately 1.83 meters) are not cut, even if they intersect the cut plane.
The 6 feet are measured from the top of the bounding box to the bottom of the primary view range. For example, if you create a wall with a sloped top face, when the top of the wall is 6 feet away from the bottom of the primary view range, the wall is cut at the cut plane. When the top of the wall is less than 6 feet, the entire wall shows as projection even where it intersects the cut plane. This behavior always occurs when the Top Constraint property for the wall is specified as Unconnected.

Here’s a graphic of my quick comparisons:





RPC Content (People, Vehicles & Plants) – Trouble Shooting

December 10, 2011

Archvision ( provides a variety of content for populating your renderings with people, vehicles and plants. A typical installation on a single machine usually doesn’t present a problem but if you are working in a large office with your Revit files on a main server you are going to have to address some pathing issues.

The problem arises when you are working on a project and you load the RPC content from the server. Archvision uses a series of files to direct Revit on how to render the content placed within the Revit project. These files are (or should be) located within a folder called “ArchVision Content Manager” under the local path of C:Program Files/ArchVision folder. These commands direct the Content Manager to look for the RPC image files at the following local path:

C:\Program Files\Common Files\Autodesk Shared\Materials2011\assetlibrary_base.fbm\RPCs

So if your image files are stored on the server and the Content Manager is looking on the local machine for the image files, which are not there, the RPC’s will not render. The big clue that there is a disconnect is your RPC’s will look like cubes rather than the wire mesh of vehicles or paper cutout profiles of people or plants.

The cube below is a Mini-Cooper (or should I say a Mini-Cuber) before the image file path is re-established.

The easy fix is to copy the desired image files from the server onto the local machine to the asset library address referenced above.

For some reason Revit Arch 2011 doesn’t immediately see these image files so you may (will) need to close and restart Revit to see the new image files. It may be that Revit populates the ArchVision image content to Revit at startup rather than going directly to the file source each time you are re-pathing the image. Whatever the reason this is the only way I’ve been able to see the new image content.

Also the RPC’s may not automatically update with the proper image files when you restart the project. So if you have to re-path the image files because they won’t render or they still look like cubes just select the failing RPC note the name of the RPC in the Properties dialog. Select ‘Edit Type’ then ‘Rendered Appearance’ button. An ArchVision dialog window should open showing you all the local image content available for your RPC’s. Select the image of the same name as your RPC to re-path. You should see the outline of the cube change to match the image when you back out of the edit dialog.

I’ve been told by ArchVision that the Content Manager can be located on the server to circumvent this issue. Just one more thing on my list of a 1000 that I need to do. Hmm this is probably 957.

Happy Rendering

4-26-2012 Updates:

Resolving Network License Issues in Revit 2012

Revit 2013 RPC Content Disappears with Realistic Mode Setting: 
I’ve had this issue with my 2008 Toshiba laptop and it appears to be a Video card compatibility problem.  If you enter the Options button under the Purple ‘R’ (upper left corner of Revit interface) and proceed to the “Graphics” area you’ll notice (if your graphics card is suspect) an “Unknown Video Card” caution.  If you uncheck the “hardware acceleration” under “graphics mode” then close and reopen your project you’ll notice that your RPC content will no longer disappear under the “realistic” view mode but at the same time it will not render.  So it appears the video card may be at odds with the realtime RPC render aspect of the “realistic” view inherent in this Revit enhancement. At least with my NVIDIA Quadro NVS 150M video card.

You can check for recommended and certified hardware compatibility at:


Revit 2012 vs. ArchiCAD15

December 5, 2011

The battle continues and Lachmi Khemlani at AECbytes continues to provide an in depth analysis of each application.  Whichever BIM application turns your crank these reviews will give you a detailed look at the latest improvements as well as point out the weaknesses and failings of each.  You’ll delight over your application of choice new improvements, brush off its failings and cheer for the features that dominate the competing application.  You may even get a little jealous over the capabilities of your BIM rival.

Both these reviews are very interesting reads and the summaries at the end compelling.

Revit Architecture 2012 :

ArchiCAD-15 :

Better than the UFC!