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Computational Design workshops 2013 at Dark

Arne Folkestad Bjelland

Arne Folkestad Bjelland

One of the things I really wanted to do when I started my current position as Digital Design Manager at Dark was to try to generate some interest around computational design. I’m absolutely no computational nor design expert, but I have some interest when it comes to conceptual modeling tools, math and visual programming, and as with many things in life; when you like something you stick with it.

We put together 6 workshops, most of them with different attendees. This meant we spent some time on introductions to the concepts and tools available each time we met. Still, I was very impressed by the work that we managed to produce during the 3 hours these workshops lasted.

I normally divide the workshops in three parts; during the first hour I show something I believe will be new to the present attendees, the second hour everyone model something from their imagination – totally without creative constraints or guidelines, but before we start I announce that during the last hour every participant must present their work to the others. That has a tendency to up the prestige slightly. I guess I never actually mentioned that their work would also be published online…

We’ve mostly used Autodesk Vasari during these sessions. Unfortunately we haven’t been able to spend much time on visual programming and Dynamo yet, but this is something I hope we can dive into at the start of 2014. I’m sure Zach Kron will recognize some of the patterns in our exercises, as we’ve used his YouTube on several occasions. I bow in honor.

While these interactive training sessions are mainly for Dark employees we have at times invited certain individuals from other companies and educational institutions. If you’d like to be invited to these workshops, please let me know and perhaps we can make it happen. They will also most likely be published in the Events section on Relinquish.

Here is a sober selection of the creative work we produced during some of these very inspirational workshops:

Arne Folkestad Bjelland

Arne Folkestad Bjelland

Arne Folkestad Bjelland

Arne Folkestad Bjelland

René Damborg Jensen

René Damborg Jensen

René Damborg Jensen

René Damborg Jensen

René Damborg Jensen

René Damborg Jensen

Charlotte Hansson

Charlotte Hansson

Charlotte Hansson

Charlotte Hansson

Marin Kulas

Marin Kulas

Charlotte Hansson

Charlotte Hansson

Charlotte Hansson

Charlotte Hansson

Simona Ferrari

Simona Ferrari

Arne Folkestad Bjelland

Arne Folkestad Bjelland

Arne Folkestad Bjelland

Arne Folkestad Bjelland

Ida Stople

Ida Stople

Vilde Aspen

Vilde Aspen

Vilde Aspen

Vilde Aspen

Vilde Aspen

Vilde Aspen

Andreas Haukeland

Andreas Haukeland

Erik Ege

Erik Ege

Maya Målsnes

Maya Målsnes

Kjell Kristian Karlsen

Kjell Kristian Karlsen

Håvard Vasshaug

Håvard Vasshaug

Håvard Vasshaug

Håvard Vasshaug

Håvard Vasshaug

Håvard Vasshaug

Animated Tilted Surface Patterns in Revit

I’m afraid I’m starting to bore my readers with this repeated going on and on about Image-O-Matic and animated Mass families. For that I’m sorry, but I have yet another example of it’s potential use.

Some time back I saw a link on Twitter followed by some exchange of ideas between some people I follow. The link was to artist Ned Kahn’s webpage and work, and the discussion basically evaluated different possibilities for this kind of thing to be modeled and visualized in Revit. As I remember, one of the proposals during the discussion that followed was: *Surprise* Image-O-Matic!

Take a look: nedkahn.com/portfolio/wind-veil

Of course I immediately had to scrape the idea of making identical stuff in Revit, with multiple waves and large surfaces, and confine it to mere inspiration.

I produced two models, one vertical facade and one horizontal ceiling above a pool “sort of thing”. The first video was a prototype and the second is the finished product of the vertical surface.

Details from the Adaptive Component family:

Tilted pattern horizontal AC

This is basically a simple disc, hosted on a Reference Line that tilts according to an angle that in turn increases when the Adaptive Placement Point number 2 gets closer. This is done with a simple tan-function.

2013-06-10 20-24-19

The second Reference Point gets hosted on a Reference Line, and the position of the point on that line is associated with a Number Parameter that is used for animation.

2013-06-11 08-31-43

Here is the Mass family and parameters:
Tilted pattern horizontal rotation2013-06-10 20-22-31

The point that controls the displacement in the Mass family is hosted to the end of a Reference Line, that is in turn rotated around the Mass center.

2013-06-11 08-40-17

The last animation of the vertical facade took about a day to make, with approximately 200 HD images being generated and assembled. And yet it is too short, as the Reference Point moves far too fast because of the long hosting Reference Line. Also I’m not totally loving the robotic presence the symmetrical layout and movement makes.

Tilted pattern horizontal pool 1

The “surface above pool” model is nice, although also very robotic. Here, the Reference Point moves on a circular path around the pattern’s center. I’ve also put in a variable that uses a sine function to control the amount of angular displacement.

I could probably make this easier by just tilting the disc towards the second Reference Point, and do more work on the Reference Line defining the path (give it a height for instance), but that would ruin my math and hence my day.

Ironically I like the first (prototype) animation best. That’s probably because the Reference Point moves slow, and on a fairly organic path. Too bad I didn’t make it HD or save a backup. And what do we learn from this? Never neglect your first work.

Tilted pattern horizontal pool 2

Download the Mass family used above the pool: Tilted pattern horizontal rotation

Computational Design in Revit: Work Inspired by Sang Hoon Kim

Sang Hoon Kim 6

Some time ago I stumbled upon the work of designer Sang Hoon Kim while surfing the Internet. Bam! Revit model.

Sang Hoon Kim 3

Well, “Bam! Revit model” is slightly exaggerating. It took me about a month of tweaking before I was satisfied enough to write a post. I’m still not 100 % happy, but sometimes you just need to get shit out the door.

Sang Hoon Kim 8Sang Hoon Kim 8 hidden

My version of Mr. Kim’s design is obviously different from the original concept, but the inspiration is still apparent.

Sang Hoon Kim 1 hidden

This turned out to be an exercise in computational design studies in Revit. I originally wanted the entire model to iterate from one parameter (Universal Ratio), but that turned out to counteract the aesthetics. I tried to connect everything to the ratio parameter, but whether I used the golden ratio, 8:5, 4:3, 16:9 or Phi the model just would not look good. Or, as good as I expected.

Now, the total width and height are independent of the ratio, as are the angle parameters that control the radial placement of the vertical paths. The Universal Ratio is resigned to “just” control the horizontal relationships between the circles and the wood panel cross sections.

Sang Hoon Kim plan family2013-04-15 13-14-09

It is impossible to automatically align path nodes vertically and horizontally. The only way of doing this is using Reference Planes and Path Intersects, and that limits your ability to change the number of divisions. Room for improvement, Autodesk!

Sang Hoon Kim perspective family

The formulas used to control the geometry is inverted exponential. That is very easily shown with Image-O-Matic:

For more videos, please visit my YouTube channel.

For more images see Gallery.

Download Mass family: Sang Hoon Kim 🙂

Sang Hoon Kim 2

Some illustrations of my previous work

Barcode structure below

In a previous life, as a reseller consultant, I had the opportunity and extreme pleasure of assisting Multiconsult with making the most out of one of their first and biggest BIM projects. Multiconsult is a Norwegian engineering company with a big Oslo-office, and they sure as hell did not fear project size when the engaged BIM for the first time.

Barcode structure above

Barcode structure above with section box around two elevator shafts

This particular project was basically three huge buildings right next to the new Opera in Oslo downtown. The buildings now near completion and form a central part of the so-called Barcode strip, or OperaKvarteret in Bjørvika. They are designed by the three architectural companies MVRDV, Dark Architects and a-lab, and just recently won the City-award for 2013.

Bjørvika now

I also did some work for the architects on this project, but that was very little compared to the structural modeling. Check out this video to get a picture of what the architects had to deal with:

One interesting aspect of the structural job was that this was the first time any of us tried to export a real (as in not four walls and a slab) analytical model to Robot for structural analysis. This was way back in 2008 and 2009 when the analytical tools in Revit Structure was crap and we had to do A LOT of manual labor in both programs. Finally we did manage to get some not totally ridiculous results, and the illustrations made by the eminent Jozef Waligora at TDA are quite nice.

Barcode floor moment analysis in RobotBarcode foundation slab gravity deflectionBarcode foundation slab water pressure deflection

This is one of the coolest projects I’ve ever worked on, and I have both hopes and pretty decent indications that I will do similar stuff in the near future.

A tribute overdue and a boost to the gallery

Image

I have this friend who I’ve known since before I became an engineer and that I currently work with at Rambøll. His name is Anders, and since it’s mostly because of him that I started learning Revit in the first place I believe a modest mention is in place.

This guy is the only structural engineer I know who 3D detail all reinforcement in a project, use it for scheduling and 2D documentation, and export it to Max for some high end rendering. Of course he also just had to do a capture of his own bald head and reinforce that as well. (Some would say he should have done that a long time ago.)

Image

Image

As you can see in this site’s Gallery I have a thing for shaded Revit views exported as images (as contrary to rendered material). Anders has also done some cool stuff with shaded views, and this bridge is a good example.

Image

Last up from my buddy is a short video he made using Particle Flow in Max on a structure project modeled in Revit 2013.

Image

Welcome!

Reinforced concrete power stationWelcome to my new place on Internet dear Revit people of planet earth (and other places)! I’ve maintained a Norwegian Revit blog on revitnorge.blogspot.com for some years now, but it always troubled me that no one else than Scandinavians could take part.

I start off by sharing some material I wrote when preparing my class at Autodesk University 2012 on reinforcement detailing in Revit. Check out the Gallery for images and the Content section for my self-proclaimed epic 86 page class handout!