Showing posts with label Siggraph. Show all posts
Showing posts with label Siggraph. Show all posts

Tuesday, August 11, 2009

Merging the virtual and the real: A new virtual reality system

Posted by Bettina Tizzy

Apologies to all my readers, as I have not been blogging at all as of late. If you follow me on Twitter, then you already know most of my sagas, but the stars and planets were aligned against me (and my real and extended family), and I've been putting out fires for days on end. Things seem to be normalizing now, hopefully, so let's get on with the show!

Via post-doc mathematician and virtual artist Seifert Surface (aka Henry Segerman), we learned of Technology Review's writeup on new technologies featured at the ACM's Special Interest Group on Graphics and Interactive Techniques at SIGGRAPH 2009 in New Orleans this week.

Of particular interest is a new virtual reality system called Virtualization presented by INRIA (The French National Institute for Research in Computer Science and Control) and Grenoble Universities that allows users to interact with virtual objects in a very "real" way, by tracking their movements using several cameras simultaneously.


Technology Review explains: "The user wears a head-mounted display (HMD) and moves through a virtual space while several cameras track his movement. The video here shows a guy kicking over virtual vases and pushing around a virtual representation of himself. A cluster of PCs is needed to perform the necessary image capture and 3D modeling."

Monday, December 15, 2008

The many elaborate gowns of the Maiden Queen...

Posted by Alpha Auer

Naergilien Wunderlich is a re-creator of historic costumes, based upon gowns from historically famous portraits, in Second Life®. She bases her work on a thorough examination of the original material, and not only just from the paintings themselves but also in extensive research conducted in costume departments of noteworthy museums on styles and specific epoch related characteristics of the garments, telling us about herself that "... at the tender age of six I started to sew, two years later I got a sewing machine as a birthday gift. When I was about twelve, I made many of my clothes myself. In 1987, at the age of sixteen, I started sewing and collecting 1950's clothing. Ten years later I became interested in Edwardian and Victorian clothing, and ever since then, my studies of historical garments went practically further backwards.

By now I am specialized in (English) Elizabethan women's garments, and also Victorian clothing, of which I'm more interested in the crinoline- rather than the bustle area... But, as already mentioned, I'm still studying, and as any serious student, I will probably never be finished studying and learning. I am currently in the process of writing a book on English Elizabethan costuming, my favorite period of fashion. The book will - hopefully - be a guide for studying, dating and re-creating Elizabethan fashions for beginners as well as for advanced seamstresses. The book will contain information about how to correctly date Elizabethan fashion in paintings, movies and on extant garments; how that fashion developed from Tudor to Baroque and, of course, tutorials, tips, tricks & hints on how to create an at least half-way period Elizabethan garment today"
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A true wonder by Naergilien Wunderlich is a very close replica of the red dress from the Maiden Queen Elizabeth's famous Pelican Portrait, c1575, attributed to Nicholas Hilliard, where a number of devices are used to communicate messages about Elizabeth, including pearls in association with her purity, the Tudor rose for unity and the pelican pendant pinned on her chest for love. The pelican brought with it a whole host of associations that Elizabeth adopted for herself and it became one of her favorite symbols since pelicans were believed to pluck their own breasts to feed their starving young, often dying in the process.


In Second Life the Pelican Gown comes in a variety of colors, the red version being of course, the one which is historically accurate. However, I loved the charcoal version so much that I wanted to feature it alongside the red one. The background of the photo is a Vanitas by Franciscus Gysbrechts and the full image can be viewed here

During my lengthy conversation in-world with Ms. Wunderlich she told me that there was considerable debate in the community of costume historians as to whether this gown ever really existed, since from a structural point of view it seems that it would have been impossible to sew this garment in the way depicted in the painting. Ms. Wunderlich has put an end to this side of the debate by reproducing the garment stitch by stitch in Real Life. However, as to whether this makes it a garment possible in Real Life still remains up for debate since the gown weighs a hefty total of 44 pounds and it takes a full hour to put all the pieces on. Ms Wunderlich also tells us that "putting on makeup is not included in that time, though half an hour for getting adjusted to the stays is". Indeed it would seem that there is considerable query within the research community related to the field as to whether the bulk of the costumes worn for official portraits were nothing but wearable props, which the subjects would have merely posed in, but that these garments would not be worn as such, due to their weight and elaborateness which would have seriously hindered locomotion. However, Ms. Wunderlich says that she has worn the garment on occasion and although it would be impossible to drive a car in it due to the voluminous skirt; it is otherwise comfortable - particularly since the garment seems to generate its own climate, keeping the wearer warm in the winter and cool in the summer due to the natural fabrics and the ventilation caused by its various parts.

We are in a day when wearable computing designers such as Thecla Shiphorst and Yacov Sharir are busily designing garments in Real Life that are intelligent, that move based upon input, display visual and textual data sent to them via bluetooth technology, that can indeed whisper subliminally: Thecla Shiphorst's Exhale project shown at Emerging Technologies at Siggraph in 2005 would be one fine example in which the gorgeous skirts were not only softly breathing in and out whilst emitting a subtle light, based upon biological input generated by the heartbeat of the wearer. Furthermore they would also change behavior whenever more than one person wearing one of them gathered in proximity, at which point they would start exhibiting group behavior patterns. True that at this juncture most of these sophisticated computational garments are created with specialized aims to be used in specialized fields such as for instance dance & technology practices and performance arts; but I imagine that we will be seeing them on our own humble Real Life backs soon enough...

So what is possible and impossible in Real Life when it comes to wearables seems to me to be a very thin line indeed - and so again, I would say that ultimately it all boils down to imagination, to intent: If a garment that I put on in Second Life transports me back to the Elizabethan era, makes me the Maiden Queen for a few minutes - that to me is NPIRL. It is obvious that I would be unable to accomplish this here in the material world with any great ease - I do not have the time or indeed the manpower, in the shape of a host of ladies in waiting, to put on and take off a garment that is so complicated (not to mention heavy) that it has a whole scientific community flummoxed as to whether it could have existed as a "garment" in the first place. And the wonderful Ms. Wunderlich gives us the utter joy of being able to indulge in the fantasy, to relive the era in Second Life.



A close-as-possible an SL reproduction of the above shown gown in the Rainbow Portrait of Queen Elizabeth I., painted in 1603, has been donated by the designer to a fundraising soirée for the SL Shakespeare Company (SLSC).



Says Ms. Wunderlich: "Only three copies of it will exist in SL: One, obviously, belongs to me. Another one will go to the wardrobe of the SLSC, to be used in their plays. The third is actually the ONLY one that will be available to the public; it will be auctioned off at the fundraising soiree. It can be worn in several ways; with/without the loose gown, with / without the jewels; and I don’t think I’m exaggerating if I say that this is the most complicated gown I made so far in SL. Others have donated / made items for the auction as well; just to name a few: Alastair Whybrow; Aberdon Enigma and SimplyAmy Iwish".

The auction will be open for one week, ending on Sunday, December the 21st. Bids can be made by dropping a sum in a notecard to either Naergilien Wunderlich or Ina Centaur in world. Ms. Wunderlich will be keeping the current figures updated on her blog here. You can view the dress at Ms. Wunderlich's store to where you can teleport directly from here.
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Although the two Elizabethan gowns above are the main subject of this post, I simply cannot resist showing you just a few more of Nargilien Wunderlich's historically referenced dresses:


The Ophelia Gown has been created after John William Waterhouse's 1910 Pre-Raphaelite painting by the same name . It was then adjusted to match the Elizabethan age. And it is historically correct outside of the shaping restrictions in Second Life, for the period of around 1575 to 1580. The background image is a musical still life by Evaristo Baschenis, c. 1645.


Here I have taken a poetic liberty and placed gowns from two different eras side by side: The Drunken Duchess (on the right) is Roccoco, having been modeled after one of the gowns of "Georgiana" from the movie "The Duchess". It is historically correct outside of the shaping restrictions in Second Life, for the period of around 1780; whereas the Elizabethan Servant's Outfit (on the left), was modeled after several paintings of Tudor/Elizabethan Servants, and again, outside of the shaping restrictions in Second Life this too is historically accurate for the period of around 1500 to 1600. I have placed these against a a painting entitled Still-Life of Flowers, Shells, and Insects by Balthasar van der Alst, c. 1635.
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More on Naergilien Wunderlich's virtual historical costumes practice can be found at her own blog here, whereas her Real Life work in this area is covered here. And finally you can teleport to her store in world directly from here. Larger sizes of the images shown here can be viewed on my Flickr stream here.

Sunday, December 7, 2008

Hard to believe but... I seem to have made it into the Hall of Fame of Data Visualization!

Posted by Alpha Auer

Blowing one's own horn is really not such a terribly cool thing to do but this occasion does seem to justify the act:

I wear many different hats, which sometimes converge and at other times do not. While, here in Second Life® I am incorrigible Alpha, heavily into tails, ears and all manner of nonsensical playful activity, in a parallel universe I am actually a design researcher in the field of data visualization; collaborating with a computer scientist and an architect in work that has even brought us an IBM award last year; not to mention that I also supervise some long suffering PhD students who exert good brain power on little conundrums such as how best to visualize heterogeneous data sets of one million plus nodes. (One of the cute little critters even had the audacity to leave a comment at the very location of my current glory, totally taking the piss... grrrr ;-)

So, how do the hats converge? Well, if there were such a thing as paw boots in Real Life, I would most definitely be the first in line to get a pair, and moreover I have been known to trample on many a tender academic toe with my lovely Doc Maartens during somber occasions such as faculty board meetings and the like (alas)...

The web portal Visual Complexity is the one indisputable Mecca of data visualization, the place where everyone connected to the data visualization field dreams of having their output posted at. And mine seems to have gotten in! I did not apply, they must have found me, which makes the whole thing even better!







The Bridge Project is not part of my collaborative research in data vis but a solo venture, undertaken as part of PhD work at the Planetary Collegium (as I said, I like to wear many hats ;-). Indeed, I am not really sure that the Bridge Project can even be termed as proper data visualization since it only contains some hundred nodes, which is a laughably small number in terms of a data vis study worth its salt. Instead the Bridge is a free fall artistic project which I created with VRML. I presented it both as creative work and as a theoretical study at numerous conferences, including the Siggraph Sketches Program in 2005 and the EuroGraphics Computational Aesthetics Conference of the same year. Both very nice, both very prestigious - but this Visual Complexity add-in is most certainly the cherry on the icing and I want to share with all the world.

You can download and view the project from here. Oh and, it is absolutely NPIRL of course: You have to fly in VRML to be able to look at it... ;-).