Feb 04 2010

A visit to ScienceSim Geography regions – OpenSim with turbo boost

I don’t have much to say about these regions that hasn’t been written already, and my views have been less aesthetic than Shenlei’s.
But in the interest of boosting the bandwidth by which I can share OpenSim, I’ve invested in a much newer Adobe Premiere Elements than I’d been using for the past five or so years. It’s a gas to have it multi-thread while rendering, and I have direct-to-FLV write. Trying to share as much of the motion and fidelity via YouTube as I possibly can, I’ve crafted a video resolution that is a multiple of my Hippo / SL viewer screen. The FRAPS video direct to AVI (sorry, it’s Win XP) is 1600 x 1140 @ 10 fps. Yup, those are video frames. In the interest of surviving an upload, I’ve rendered them highly time-compressed, with output at 1515 x 1080 @ 15 fps. As of tonight there’s no sound, no intertitles, just the rushes.
oops, if I read the YouTube Instructions for best formats, I should have trimmed the width to 1440, which is a multiple of 16.
Also, I have more direct upload options now with Premiere 8 than I had with my (recently demised) copy Premiere 1.0. Go Figure ;^)

While the Windows box grinds out the video print, I’m over here on Ubuntu blogging in a tab of 64-bit Chrome 4.0.249.43 and it is fine & fast.

For these videos, I visited ScienceSim Geography22_44 region and set the view to wide angle, then sat up at about 500 meters and watched the regions rez their terrain. For some folks, it will rank right up there with watching lead-based paint dry. For geography folks I’m hoping that these few minutes of sped-up video will convey, by dogged repetition, the primacy of regions in the provision of virtual environment simulators.

By the way, I’ve got a task: I need to find a better buzz word for the GIS community. I’ve been advised by some serious and well-intentioned (not to mention well-informed) folk that terms like “virtual” and “immersive” are actually boring to GIS’ers. So I’ll need to think about how to convey the concepts of “Mirror World”, “Multiuser Virtual Environment”, “Immersive Connected Experience”, “Third-Person Virtual World”, and related concepts into a catchy moniker. Hopefully, one that is not presently trademarked, either!

I’m trying to remain serious about this, but some of the options are treacherous. Geography in Social Media has a possibly awkward acronym; maybe it can be saved in recognizable form as “GIS for Social Media” or “Geography for Social Media”: GFSM
The term “3D Map with Me” is terse, slightly ambiguous

Here is the video chopped as it was when uploaded with 1515 x 1080 resolution. Problem with that is that by not preserving dimensions at a multiple of 16, and saving my viewer’s aspect ratio rather than the (standard since 16mm film) 4:3 aspect, my upload is clobbered into something perhaps suitable for a smartphone. So please consider this the Smartphone Version of last night’s rushes:

Then, once again with feeling, or at least with a little more rest, there is what I hope to be an HD-friendly moving vision of OpenSim, as it appears on the ScienceSim Geography regions. Yes! After it ripened on the YouTube servers for a few hours, I now see all the higher-res versions available. At 1440 x 1080, this is pretty close to what I see on my screen with a live Hippo viewer.

And after a day’s cogitation: anyone care to comment on the term: “Social Immersive Media GIS” as a moniker? Oops — I used “immersive” 8^(

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Feb 01 2010

Taking a break from OpenSim modeling, in planetarium

Published by Darb under SL In General

The work on Point Reyes Station has more LiDAR data on tap, but this evening I’m taking a solar sauna in the Kepler planetarium. It’s a captivating display for both young and older eyes.

not all planetariums can be enjoyed from the center

A large planetarium has our solar system displayed dynamically


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Jan 29 2010

A bit more detail – Point Reyes Station 1:4 model

Published by Darb under SL In General

Just time to post a couple of shots from Alaska North in ScienceSim.com grid. This build is being created with resources provided by the ScienceSim Land Grant Program, and should remain accessible until June 2010. Downtown area has been refined with 21cm LiDAR grid sculpty prims.
I haven’t figured out how to get the high-res shots with Hippo Viewer, so the 7 Mpel camera in the Linden Lab viewer is still my favorite. Hippo seems to top out at 2 Mpel right now.

LiDAR sculpties of Point Reyes Station in OpenSim

Alaska North in Science Sim, featuring 1:4 Point Reyes Station

Downtown Detail

21cm LiDAR grid (2007) draped with 10cm orthoimagery (2004)


Bucolic yet trendy, Point Reyes Station

View across Lagunitas Creek toward community of Point Reyes Station

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Jan 27 2010

New Land – 1km square in 1 full region of ScienceSim.com

Published by Darb under SL In General

Good stuff has been happening – and GIS data has been finding its way into OpenSim!

Thanks to the persistence of Kim Smith and with help from John Jainschigg, I made my first-ever live audience presentation in the World2Worlds venue on 2009 12 15. Trying to fit everything into a regular work day, I was fortunate to get support to do the presentation from my desk at work rather than from home–and I indulged in a new digital-USB headset for the occasion. Oddly, the headset seemed invisible on the podium ;^)

Speaking at Smarter Technology, 2009 12 15 -- John Jainschigg built a custom podium several steps tall so that people could see my tiny avatar.

Speaking at Smarter Technology, 2009 12 15 -- John Jainschigg built a custom podium several steps tall so that people could see my tiny avatar. Photo courtesy of Chimera Cosmos

After nearly a year away from pushing OpenSim (corresponding with my first year on a new RL job), I was a bit nervous about having up-to-date stuff to offer the audience. So instead of a slide stack, I presented the machinima of models that I had brought from OpenSim into Second Life.

Lazy of me, perhaps, but the video did help create a certain party atmosphere in the airy auditorium at W2W. It also helped echo my emphasis on a certain use of OpenSim that I’ve been striving towards since October 2007.
But as so often during RL conferences, the very best part of the presentation experience is the (sometimes serendipitous) human connections that take place around it, and this presentation was no exception to that rule.

One audience member was Richard Hackathorn, who described Second Life in the context of urban planning for listeners to Arina Hadich’s Urban Design Podcast. His enthusiasm for my subject matter at the Smarter Technology presentation has led to an upcoming podcast at UrbanDesignPodcast.com (details to follow). Although I haven’t been a regular listener to podcasts, when the subject of the talks are focused on an area of interest, I am impressed by how much information can be conveyed in the time it takes to listen. The podcast seems to have more detail per minute than I can get reading a browser on my phone, certainly more than I can browse while driving, (and far more detail than I seem to be able to convey in a minute spent writing a blog ;^)

Another audience member was Shenlei Winkler of Fashion Research Institute, who is surely among this world’s most prim-prolific individuals. I’ve been reading about the various Shengri La regions since 2008, created by Shenlei in collaboration with IBM researchers. Ironically, I was collaborating with different IBM researchers about the same time, in 2008 03. These days, Shenlei appears very active with several types of support for the IEEE/ACM-hosted, OpenSim-derived grid known as ScienceSim.com. Shenlei very kindly took time to contact me after the Smarter Technology presentation, introduce me (with voice chat) to ScienceSim and its resident researchers, and encourage me to participate in the Science Sim Land Grant program. More details are described in paragraphs below.

Through ScienceSim, I’ve had the pleasure of interacting with Mic Bowman of Intel Labs, the group managing ScienceSm servers. The way that these folks have configured the servers is glorious. I’ve been a fan of running OpenSim on 64-bit Ubuntu with Mono since 2008 07, and the Intel crew have taken it to such another level that I find it astounding. In ScienceSim, it appears that the ODE physics engine runs for as little CPU cost as that which I’d experienced before with the near-trivial basicphysics. It is a rare treat for me to speak with configurators of OpenSim, much less those who strengthen and extend the simulator code!

Since I was firing up the forges to create some LiDAR sculpties for my ScienceSim project, I decided to warm up the works by creating some carefully-scaled terrain for ScienceSim’s Yellowstone 16-region model. Using public terrain data from the US Geological Survey, I processed terrain down to a model that was 1:83 in the x and y dimensions, and 1:55 in the z dimension (vertical scales are often exaggerated in both hominid avatars and terrain to make them more attractive). As a by-product of the production process, I also saved an intermediate bit of data that I had scaled to 1/10.38 in x and y and 1/6.9 in z. Knowing that it would present a worthy challenge to OpenSim server jocks, (the 1:83 model fit into 16 regions, but the 1:10 model would require exactly 1024 regions) I passed it to Mic along with the 1:83 terrain.

My jaw was somewhat slackened when, less than a week later I heard from Mic that much had been done with the
1:10 terrain. The Intel crew had actually had the tenacity to wait while all 1024 regions were brought up on a single processor; shortly afterward they prudently fit the regions onto a single blade, dual quad-core (Xeons?) system with 11 GB of memory and my favorite X86_64 Ubuntu/Mono environment. As if that wasn’t enough, they did this while configured with ODE physics! I’d say their effort was Olympian, but heck, it actually took them less than six days!

It’s been tremendous fun this month watching OpenSim make bold moves in the direction needed to support the sort of civic paraverse / Immersive Connected Experiences that could back-end many aspects of local agency operations. I’ve been looking for ways to get here since 2006 11, but with Intel’s demonstration of 1K regions on 1 dual-quad-core Xeon blade, I won’t look like such a fool scoping out costs for a county that would require 20K regions to build out at nominal 1:1 scale. (By contrast, in 2007 I had estimated that Linden Lab hosting of 575 regions would cost the City of Berkeley upwards of $60,000 per month!)

The Yellowstone work by Mic has been beautifully documented by Shenlei here, and here and here and here. I’m even using one of Shenlei’s Yellowstone sunset shots as my (Ubuntu) desktop background ;^)

More to the point of my post’s title, I have taken some outstanding publicly available LiDAR data and am in process of crafting a 1/3.9-scale model of Marin County’s own Point Reyes Station, a rural community that is situated so close to the San Andreas Fault that they were imaged in excellent detail as part of a scientific investigation into the geomorphic expression of strike-slip faulting. Together with publicly available high-resolution orthophotography, I’ve been able to refine the technique that was used on the 40-region model of the UC Berkeley campus and develop 21-cm-gridded surface model with 10-cm natural color orthophotography. For a preview of the model at 105-cm surface gridding, view this video. Enjoy, and watch for updates soon.

The Point Reyes Station may be trod upon in ScienceSim’s Alaska North region. Hope you get a chance to visit!

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Dec 22 2009

Solstice in Spirit

Published by Darb under SL In General

This blog has been shamefully quiet, but Darb’s efforts have been continuing. Just a touch stealthier than before.
On ScienceSim.com, I found a pleasant roost from which to enjoy the solstice sunset.

visiting a rabbit on Shengri La Spirit

visiting a rabbit on Shengri La Spirit

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Aug 15 2009

Second Life: The long and short of the road ahead

Published by Darb under SL In General, SL Server, SLCC 2009

Today, the third day of SLCC 2009, Philip Rosedale and Mark Kingdon provided the telephoto and wide-angle views of the road ahead for Second Life.

Union Square as seen from SLCC 2009

Union Square as seen from SLCC 2009

Philip summarized his message to a backdrop of an abandoned and decrepit  Detrioit home thus (as best I heard it)
“TRY and recognize that we are at the very beginning, and together, you guys and us, will have to weather a tremendous changing as we move from where we are today
to where this thing is, this kinematic and imaginary global kind of new digital world.”

Mark had a fine intro where he disclosed a moment of discovering his passion for in-world activity while building
“…it was at that point that I got a second island, and the land addiction began.”

Sessions today included morning Art track’s “Plastic Reality”, running over the start of an enterprise session that I really wanted to hear all of: “Enterprise and Virtual Worlds: The Value Proposition” moderated by Dusan Writer.  I stuck around for Schott Homan’s Purdue case study, caught a share of Patio Plasma’s “Building Interactive Science Exhibits, Tools and Techniques”

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Aug 14 2009

SLCC 2009 – Day 2

Published by Darb under SL In General, SLCC 2009

Lindens greeting the Woodbury College MC&D party bus

Lindens greeting the Woodbury College MC&D party bus

This morning I learned that Linden Lab has reached 320 employees.   For the keynote, Philip Rosedale introduced a certain avatar named Kurzweil Tomorrow who held forth for an hour on this fine futuristic topic in a notably tenor tone.

Friday's Keynote presentation

Friday's Keynote presentation

Today I saw sessions involving reviews of pay rates for virtual-world workers (hint: not good).  Enterprise SL usage with an emphasis on enhanced usability through rapid and effective training, and is supported by 24 Lindens who activley leverage existing technology.

At lunch and shortly afterword, I learned much more about the Meerkat Viewer.  I saw some of the Machinima presentation and received a wonderful DVD of MaMachinima Festival 2009 thanks to Fab Outlander of Orange, and greatly enjoyed the informative panel about blogging SL moderated by Hamlin Au.

The evening offered a fine party bus thanks to Woodbury University School of Media, Culture, and Design that cycled between the convention and Linden Lab offices, where we left our marks.  On our return, the Odd Ball was just starting and offered fine and fun conversations with trance and a truly cosmic parallel dance club in SL.  The resident SIMGIS intern, Rat Dawg, snagged a copy of the brief novel AFK by Huckleberry Hax

Creative output from the Woodbury College party bus

Creative output from the Woodbury College party bus

In the midst of a sidewalk-coloring party

In the midst of a sidewalk-coloring party

It was a wonderful day and tomorrow looks to be grand as well.  For now, it’s rest!

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Aug 14 2009

Second Life Community Convention 2009 – Day 1

Published by Darb under SL In General, SLCC 2009

I enjoyed a relaxing morning on the way to San Francisco, but was befuddled to find that the registration process was not open today – tomorrow morning bright and early it will be.

In today’s workshops, I enjoyed presentations about SL-enhanced educational programs, including scientist-mediated field visits to observe solar eclipses http://tr.im/wnNN and Museum virtual worlds http://tr.im/wnO7.  I was intrigued by the anecdotal experience of good internet connectivity made available in the Gobi desert during the solar eclipse that allowed field scientists to visit in-world from a very remote tent.

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In a panel discussion moderated by Catherine Linden, the business track covered the topic “Building Community”.  Successful community builders described their experiences in the areas of community for disabled individuals (Virtual Ability), folks looking for a safe and predictable place (Dublin region with pubs and live music), corporate client community (enhanced for Nokia), and user community development (Orange mobile).

Lessons learned in connection with Nokia: communicating that the corporation is not nameless, faceless, but consists of real people with real feelings—helping to give the corporation a face, provide a hangout and community focal point.  Oh, and have parties!  Good events, with a good event manager, can lead to media coverage and grow a buzz that feeds brand recognition.  SL is a tool, and one that requires use to stay hot.

Lessons learned in the Orange experience: Staying true to the mission of not being intrusive, and not marketing at a level that is detrimental to the community ecosystem.  Make it regular with weekly community events, so that people might miss a week and still be able to rely on having a place to go when they can make it.  To the big brands: SL is not a 3D commercial marketing tool.  It’s a good forum for meeting people interested in the company.  The Orange effort was an experiment to involve people who were interested in the product, not for marketing.  Orange can afford a mainstream media marketing campaign—but with SL the goal was more to get to know those who will be the next customers.

Lessons from the Virtual Mobility experience:  Academics research their topics before acting.  For example, the term Virtual Community was coined by Howard Rheingold.  In the book, Rheingold noted that sustainable virutal communities require four essential characteristics: 1) adequate population, with 2) adequate time to spend in the community, 3) a sufficient level of human feeling, and 4) development of a web of personal relationships.  The interpersonal relationships are what make the community real.    Further items of importance to a well-founded virtual community include: 1) coherency of membership, 2) influence of members on each other, 3) integration and fulfillment of needs, and 4) shared emotional connections.

Community building is about communication, and as most attending this session agreed, communication in SL is not the same as in RL.  Virtual Ability chose to grow slowly, and their board of directors keeps them focused on their mission and vision; SL is known for its defocusing effects on residents.

Lessons from the Blarney Stone Group (Dublin region) in SL has over 10,000 members.  They serve as a community gateway, a first place to go to find helpful people.  Recently, it was noted that some residents who passed through a couple of years ago have been returning to check in (and enjoy a pint).

With Orange as well, the goal was to grow community slowly, not fast, and keep the connections on a personal level.  This involved direct in-world presence to provide a one-on-one connection with those arriving at the site.

With Virtual Ability, some sources of drama can be falseness – role players who are not themselves disabled yet are presenting as such.  The risk they create is that in communicating with the community they may project mythologies (rather than speaking truth from experience).  Also there is a small but dangerous group of predators who actually target the disabled community.  One of Virtual Ability’s strengths has been their inclusiveness to both the disabled and those not yet disabled, and not to require disclosure of one’s status with regard to disability.  With that mix of membership, the predator community can not find themselves certain of actually communicating with a disabled member of Virtual Ability, making the group a more resilient target.

Also experience notes from Virtual Ability: be certain to separate one’s personal and professional life in Second Life–especially when it comes to accounting for business expenses.  Also, be certain to maintain a contingency plan for leadership.  Virtual Ability does this by rigorously assigning co-leadership to key projects and distributed leadership in other works.  All projects have at least two leaders.  One never knows when loss or unavailability will strike, so planning ahead is really important to maintain a viable community.

From Dublin: One needs a very clear idea of what that community is about, as in “I want it to be thus.  These are the rules.  This is where I want it to go.”  Get people around you whose judgement you trust, and listen to them!  Before there are too many requests to handle personally–delegate!  Get others involved with growing leadership.

From the Nokia efforts — don’t pick someone from IT to manage your community building efforts.  It’s not about technology, but rather get someone who is a good user of the technology and who can put it to use.

From Orange – be sure to have a clear idea of what you want — make it sustainable with appropriate finances and staff.  Remember also that you in an SL community must live with your own already existing communities as well.  Be sure not to work as an island, but rather connect with these existing communities.  The alternative is rather lonely…

What makes a good event?  From the Nokia experience – use a topic that is slightly controversial (e.g. consider the corporate reaction to furry avatars). In any case, don’t be boring!  From the Dublin experience – create consistent events, rather than trying for killer events.  All and Catherine emphasized: “know your audience”.

In the realm of user questions, it was noted that the SL limit of 25 groups per resident has been a challenge for those very active in community creation.  For a large group with hierarchy such as Dublin, the group limit is easily exhausted for the executive director when dividing up multiple teams at multiple venues.  Others find that with large and unwieldly groups, it would be very desirable to allow Special Interest Groups (SIGs) to effectively subclass the group.  This would solve the problem noted in Dublin.

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The last panel of the afternoon for me was the Linden Documentation Team.  John, Kate, Jeremy, Rand, and (in-world only) Torley were available.

Key point: the SL knowledge base is moving out of Parature and into a public wiki.  The MediaWiki solution (as used by Wikipedia) will be used together with its FlaggedRevs extension to allow revision control.  This means that the knowledge base will be more directly editable by us residents.  Certain policy-related and service pricing-related articles will remain locked for business liability reasons.

In a creative blast, the Documentation Team has released a graphic novel version of introductory concepts called “discovering virtual land”. They were kind enough to print out hardcopies enough for us in the room, which they graciously signed.

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After a short walk to Yerba Buena Gardens along Third Street, it was wonderful to gather across from SFMOMA and enjoy the Linden Lab Luau.  There seemed just the right number of folks to fill the space and still get a chance to visit with much of the crowd, including some people who have been very successful with SL.

Afterwords, just  a block away the evening was wrapped up with the Blarney Stone on Tour, where Sellers Markets was filled with happy folks and a train of live musicians (streamed into SL of course) at the open mic.

Now time for some rest and an early registration tomorrow morning.

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Jul 06 2009

OpenSim Terrain notes, and Darb has Process Credit history!

I’d read about this, but never before experienced the agony first-hand.  Extracting funds from SL, the wait for funds to arrive at PayPal was a bit slow.  In fact, in the time it took funds to go from Linden to PayPal, a bamboo shoot in my back yard could have grown taller than me (that’s my RL not SL height!), and would have been over 2 meters tall.  Anyway, Process Credits are quite lacking in symmetry with how quickly credit charges can flow into the Linden realm.

During this week of waiting my random prims have been cleared out from Amida and nary a trace of Berkurodam BART Station remains besides a video in Gualala.  The video screen was actually entombed by a neighbor, who may not like it but did not send any message.

Anyway–for me this week is all about generating maps and graphics while keeping up with work.  I’ve generated a 50cm terrain grid for parts of my county where perhaps 150,000 people live.  With computational process improvements I should be able to make production stable enough to generate a 25cm grid.  The point is to model terrain slope and aspect within urban parcels.  OpenSim can pack 64 terrain megaprim sculpties over each region to refine terrain more than the built-in 1-meter postings, and display 10cm orthoimagery at full resolution.

Last year, I used first-return LiDAR data of the UC Berkeley campus to generate a 25cm grid for 10cm imagery.  Now, I’m working with bare-earth LiDAR data from FEMA, topographic contours (densified to 1.5m vertex spacing), and most importantly, photogrammetric terrain and water break lines.

Throwing all those data into the mix, the data are built into an ESRI Terrain Dataset, from which I generate TIN and GRID models at various reolution and extent.  The ESRI ArcGIS 3D Analyst Terrain-to-TIN generator breaks down after about 10 mega-faces (so would I…)  And the ArcGIS Terrain-to-GRID generator seems to drift into Windows-unconsciousness after about 1.0 giga-cells.  So for the grid, I break it down and do the pieces, then merge the tiles using ERDAS Imagine, because the ESRI ArcGIS raster mosaic function does not produce output grids much over 10 GB.  As annoying as learning these ArcGIS limits can be, it is very satisfying (and instructive) to see huge swaths of seamless terrain with great detail once it all comes together.  Thanks to the break lines, many driveways and most home building site cuts and fills are resolved.  And it will be a lot of terrain by OpenSim standards–enough to calibrate terrain for over 20,000 contiguous regions–not that I ever expect to build it all at 1:1 scale!

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Jun 25 2009

The new Darb: 32 months old, and tier-free!

Published by Darb under SL In General

Not to ever underestimate the value of a good location, I’m happily Linden$ed-out and set free of tier starting next month.  Somehow the word got out:

Large parcels help to market themselves

Large parcels help to market themselves

After a 32-month run of parcel ownership in Gualala, Vitersonus, Amida, and finally Stanford, I’m keeping a postage stamp in Gualala, a boat ramp in Amida, and a tiny refuge in beautiful Stanford. A few of my favorite prims remain here and there, granted clemency for the moment by Governor Linden.

Looking out on what was once Darb's land

Looking out on what was once Darb's land

Looking back on what remains for Darbedfa

Looking back on what remains for Darb

Still, the heart of the outland remains tagged with a certain connection to the region’s namesake (or the region’s alley’s namesake)

Die Luft der Freiheit Weht

Die Luft der Freiheit weht

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