Capture the Motion Commotion

By Kate

800px-Puppettheatre

If you’ve put motion capture technology into the category of has-been, you’re wrong! 

Mr FlashyAfter seeing Nicolas prance around DS Campus in this flashy black and orange mocap suit enough times, I got curious and decided it was time for an interview.  Normally Dassault Systèmes doesn’t do has-been, so why motion capture?

I ended up chatting with Nicolas Serikoff (Mr. Flashy) and Benoit Marini about their work with motion capture and experiential 3D.  Here’s what I asked them:

  1. Motion capture technology has been around awhile.  Can we still consider it innovative? 
  2. What innovations are needed more immediately to make motion capture better?
  3. Can you connect motion capture technology directly to 3DVIA Virtools?
  4. What role did motion capture play in the promotion of Minimoys, and how did the public react to it?
  5. How do you think people will be surprised by motion capture in the future?

Enjoy!

Mr. Flashy and Mr. MariniQ1:  Motion capture technology has been around awhile.  Can we still consider it innovative?

A1:  It depends.  There are two goals with motion capture.  One is to record movement for later use, like for a video game.  The other is for live shows.  We’re using it for live shows and there are definitely innovations for this application.  What’s most innovative is that now mocap is real-time, mobile and quick. 

Before the set-up for motion capture was really heavy.  Ten years ago you really needed heavy hardware that constrained the actors.  Today we just need a very light and easy to put on and wear suit.  It’s just like putting on a running suit with 8 AAA batteries in the back and wires attached.  You forget about the sensors in a few minutes.  You can move very freely, jump and sit.  You can still act like you normally do.

The hardware is still evolving.  You can see that new motion capture is coming from cameras. 

Q2:  What innovations are needed more immediately to make motion capture better?

A2:  Bridging the actor’s morphology to the morphology of their digital character can be tricky because they normally don’t have the same morphology.  You need to have the computer translate the movement of the real actor and his or her morphology to the digital character.  This is one of the things we’re working on technically.  This is an innovation.  It’s a problem a lot of people meet.  What we’ve developed today isn’t perfect, but it’s quite good. 

Another thing is the sensors.  Today they stop at the wrist, ankle and neck.  So for hands, fingers, toes and facial expressions, since the suit can’t track these we have to add another layer to add emotion and extra movement. 

Q3:  Can you connect motion capture technology directly to 3DVIA Virtools?

A3:  Yes technically, but for our purpose we didn’t t use the mocap connected directly to 3DVIA.  We opted to first send the data to a software that acts as a bridge and sends the data to Virtools.  Virtools is “listening” and applies the data to the digital characters.  Virtools assimulates the information.  This is quite convenient because we can have one PC connected to the mocap that can talk to 10 other PCs.  We can also have two or several mocap characters that are talking to one Virtools.  So Virtools is good for lots of different configurations. 

Q4:  What role did motion capture play in the promotion of Minimoys, and how did the public react to it?

A4:  Our goal was to create for the first time a real-time event at the end of the film’s promotion in a regular movie theater.  We can now transform any digital theater very quickly into a 3D stereoscopic virtual reality center with a lot of interactivity between the audience and immersive virtual worlds. We wanted to create interaction between the animated film characters from Luc Besson’s movie and the kids sitting in the theater.  Some of the kids were on stage asking questions to Maltazard who was answering live. The actor’s voice was analyzed live and interpreted by 3DVIA Virtools in order to have a perfect lipsynch. We were also adding emotions on Maltazard’s face live.  It worked very well, and believe me, kids  wouldn’t have wanted to ask the characters questions if it wasn’t believable for them. 

Q5:  How do you think people will be surprised by motion capture in the future?

A5:  Live, interactive shows will become more and more surprising.  Motion capture will be part of this, but you can also think about it as the public, getting more of their involvement.  The strong conviction is that regular neighborhood movie cinemas will be equipped with digital projectors in order to display 3-D movies.  We are working on the next generation interactive software and we will add to the stereoscopic  3-D effect live interaction for new kind of concepts….


You may enjoy this behind-the-scenes video of the Minimoys real-time show mentioned in the interview.  You’ll see the actors behind the Minimoys characters plus mocap in action.  Note English subtitles.

YouTube Preview Image

So, are you convinced that mocap falls in the innovative category?  Why, or why not?

Best,
Kate

Defining PLM

By Kate

Happy Friday everyone!  As such, it’s time to bring back the Friday poll.  Today’s poll is about the definition of PLM (product lifecycle management).

Many thanks to answer and see how others define PLM.

Bon weekend!

Kate

Turbomachinery Makes the World Go ‘Round

By Tim

Ancient Water Wheel, Modern Turbine

Ok, ‘turbomachines’ don’t actually make the world ‘go round, but they have been the catalyst of human advancements for thousands of years—from the early Roman water wheels of the first century B.C. to the modern power turbines, and aircraft engines of today.

I am amazed by the massive size and complexity of steam, gas, and hydro turbines found in power plants all over the world.  Here’s an interesting link to simple explanations about different types of turbines and how they work.

Like all manufacturers, Turbomachinery companies are facing increasing environmental and economic pressures causing them to seek greater efficiency, both in their product development processes and in the performance of their products. Power plants and the steam turbines that drive them must be able to ramp up and ramp down to meet changing energy demands on a regular basis.

Engineers at Alstom

Engineers at Alstom

During peak power demand cycles, steam turbines need to be able to start-up rapidly, handle load and temperature changes predictably, and withstand the stress of dynamic operating conditions reliably.

To meet these market demands, Alstom Power in Switzerland is using Abaqus FEA from SIMULIA to cut design cycle time, reduce development costs, and improve the reliability of their turbomachines. Check out their case study “Fast-Starts Help Squeeze Watts”.

Turbomachinery designers and engineers also have to take into account a range of design variables of complex, multidisciplinary systems—from the turbine, the compressor, the combustor, the casing, the rotors and bearings—all must work in tandem in extreme conditions of temperature, pressure, and high forces on the rotating components.

Robust Design Process

Robust Design Process

How is it possible to account for all of the design variables and optimize these complex machines? Check out this view point article “Assessing Variability to Achieve Robust Design” by Alexander Karl, from Rolls-Royce (on page 4 of INSIGHTS magazine).

If you want to learn more about how Abaqus and Isight are being used to analyze and optimize Turbomachinery performance, do a quick Google search; “Turobmachinery + analysis + Abaqus” or, “Turbomachinery + optimization + Isight”. You’ll quickly find an incredible wealth of information.

Plus, you’ll discover—like I have—that Turbomachinery does make our world go ’round.

Without turbomachinery, we would be in the dark and grounded. Instead, we enjoy electricity convinently at the flip of a switch and global air travel comfortably at 30,000 feet.

Bon Voyage,

Tim



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