ckd


Making animation easier with QUMARION

I tweeted about this the other, but after it came up in the Q&A session at yesterdays blended reality pitch I realized I had not put any more here about this interesting device.
The QUMARION is rather like the posable wooden mannequins that artist use to practice drawing figures
Mannequin for drawing
It is instead fully instrumented with sensors to work with a digital description of a human skeleton.

So as you pose the figure that translates to poses in the 3d modelling package.
A purist 3d designer may regard that as undermining their skills with manipulating and understanding the interface on a 2d screen. However this came up as an answer to a question about blended reality as I was talking about how sometime the technology can get in teh way, other times it disappears and lets us use what to know to enhance an experience.
The QMARION is rather like using the real guitar in Rocksmith, it may be an appropriate tool for understanding and communicating with an application.
I know that when I use 3d packages there is a barrier in having to deal with a mental translation of a 2d representation. Being able to just pose a physical device and explain what is needed physically would work for me.
A long while ago I was trying to make some tennis animations for a well known Second Life project. I found myself standing and looking in a mirror, performing the action then sitting down making that action work on a very simple digital rig, but then I had to tune it so that it looked better for the screen. I had no motion capture which would obviously have helped in the first place, but it is the extra artistic interpretation and subtle tweaks that it would have helped a great deal to have had a hands on device to help.
Now this device is only input as far as I know so there is an obvious extension in using it as an output device too. If I mocap a move, but then the device can play that back in physical steps and frames then I could tweak and enhance it. Obviously in games there are some moves that just don’t exist, you cant get certain flips and jumps happening. You can however start with a basis of what you can do.
Again of course this relates to studying the forms in Choi Kwang Do. A physical, but digitally recorded recreation may help someone even more to understand. Also a mannequin can be made to hold a position that may be a transfer on one move to another that a person bound by the law of physics cannot. It becomes a physical pause button.
Another extension to the idea is that this restricts you to one rig. A component model that lets you build any size or shape of joints to create the armature for any creation would be incredible. Combine that with the ability to 3d print the components in the first place, but them together, have that create the rigged model and then animate away. There are some fantastic opportunities for people to create interesting things as this approach evolves.

Blended Reality Learning

Tonight at Southampton Solent University, room HC021 on the ground floor of the Herbert Collins Building, SO14 0RD at 6:30 I will be given a BCS Animation and Games Development presentation that is a further extension/summary to some of the things i have recently written about in how the physical interaction with virtual environments make for a perfect blend to learn new things and take on information.
I just posted the pitch, minus the videos (which I replaced with stills) on slideshare.

Blended Reality Learning from Ian Hughes

The main content is really about how this blended reality is starting to emerge. With things like Skylanders as toys, but also devices interacting with games environments. At the same time the evolution of playing guitar from plastic pick to Rocksmith and finally the journey that I have described in Flush and here about how I got into the martial art Choi Kwang Do inadvertently via using the kinect to try and get fit and how I see the inklings of a future that improves learning and communication for all of us. As usual a lot of chatting with pictures, but the gist is in the slides.

Virtual Athletes – A journey with some tech

It was really cool today to see the brilliant next edition of Flush Magazine hitting the virtual shelves (with my 3rd article). This time on some of the virtual sports technology and a little bit of historical evolution from my personal experience. There are lots of other things to read in the mag, also available on the ipad, but my contribution is pages 92 to 97.

There are lots of ways to check this out including a great PDF download
So thats virtual sports, merged with real activity and my newly found and exciting Choi Kwang Do martial art and the Coaches Center in this issue. The previous issues have been 3d printing and virtual worlds 🙂
Huge thanks go out to @tweetthefashion for publishing these articles and the monumental effort it is for them to get the whole edition done, making them look so good and with everyones great stories and features 🙂

The power of the mind, flow – Martial Arts

With my increasing, though long term interest in technology related to sport I was very interested to see this article by the Wellcome Trust about brain scans revealing the clues to black belt punching power.
There is of course a lot to be discovered about how we work as humans. Self belief we already know is very powerful and can drive people to achieve things other may consider impossible. That self belief in Martial arts could be down to fine tuning and practice of techniques. This article points to a change in brain structure as certain skills are perfected. To my non neuroscience trained eye that makes a lot of sense.
However the excellent video (inserted below) goes further to make the links between mind and body. It describes the self development aspects of martial arts. “A martial art is not a sport, if practiced properly its a way of life”

As is said in the video you can know thousands of techniques, be big and strong and be defeated in an instant by your mind.
My Choi Kwang Do journey is still in its very early stages but I have already felt surprise at what can be achieved, both watching the predlets and also myself.
Something that is very important is experiencing flow, being in the moment and operating without having to do any conscious mental processing. For some people that is one of the hardest parts of the journey, to let go. I am by no means an expert in flow, but I have experienced it a lot, coding, presenting and particularly in gaming. Tackling a tricky section of a game where you get more and more wound up, the more tense you are the harder it is to perform. Sometimes brute force aggression gets you through as that bring adrenalin but inevitably a more calm, flow based approach will bring more success. It is something I am trying to teach the predlets through gaming as the results and the pay off are very obvious.
Being able to induce flow is the best mental state for interesting ideas and inventions to surface. Many people get flashes of inspiration when they are doing something other than trying to get a flash of inspiration.
It may be that out there in the workplace and in schools and colleges that the solution to helping people both stay fit and healthy and have a keen brain that comes up with good ideas and is not afraid to go with them may be enhanced by many of the martial arts. In particular those that are arts not sports like Choi Kwang Do (other martial arts are available).

A bit of SL fun then onto real CKD Virtual World Coaching

It has been a while since I just went for a wander in Second Life. I have very little building space on my islands now as they are pretty much totally rented out so I just have 1 corner or Hursley. So I thought as I was in there I would pop off and have a look around. It always helps to have a subject or a reason or something to search for, but I started off just looking at some art.
Kinesis sculpture
Though it then dawned on me I had not explored martial arts in Second Life for a very long while and I thought I would take a look with my new Choi Kwang Do enabled brain. (enabled by SouthCoast CKD 🙂 )
There are a fair few martial arts related places, groups etc. None specific to CKD though. I did check out an arena for more kung fu and weapon related battles at Colibri.
exploring SL martial arts
Then I thought it was time the CKD logo made its way into SL and so my little plot now has the start of a virtual Dojang.
trying some ckd in SL
I popped along to Abraminations, just like in the old days back on ’06 (is it really that long ago!) and checked out the fighting systems and animations. The closest was a kickboxing one.
abranimation
Then I shot this little video to see how off the animations are from CKD. The guard hand and stance and a lot of the moves are not as flowing as CKD but it shows an interesting potential to people not yet versed in virtual world tech and sports.

Now I am wondering about taking the kinect tracking and seeing if I can mocap that to my patterns for CKD and get the BVH file up into SL. Just so I could use a lot of acronyms 🙂 I know the skeleton format is going to be different but it is something to work on.
This is initially just a bit of fun, but…. as we know with projects like The Coaches Center we are getting closer to being able to enable hold gathering and meetings and share more insights.
Here I am sat in my personal coaches office, with Choi Terms on the board and a synchronized version of the kinect ckd test playing, the same view anyone would get if I invited them in.
Snapz Pro XScreenSnapz021
(You can also load videos and graphics etc onto various other boards in the room to share with people)
So there I am with a virtual presence, a shared space and all the tools available voice, text, imagery, avatar placement reaching out to the web to pull in other content. All in Unity3d 🙂 check is out and register in the beta at The Coaches Center

Cool isn’t it? Imagine being able to attend a class from anywhere for those time when you just can’t get to the Dojang, or for blackbelts and masters all over the world to connect and share their insights.

More Choi Kwang Do kinect tests

Having tried using a relatively complex set up for the previous text of kinect on the Mac specifically for enhancing or viewing Choi Kwang Do moves I came across a much richer way to visual it. This uses the Tryplex created set of macros in the Quartz Composer on the Mac.
Oddly I had not come across the incredibly powerful and useful Quartz composer sat here on my machine!
It allows structured linking of macros and rendering to create motion graphics and sound.

The Tryplex toolkit has a lot of examples of how to process skeleton information and render it. It comes in two flavours. One is the more complicated to set up OpenNI/Nite/OSCSkeleton as the input for the data. i.e. the setup I had previously for the simple viewer. Or it uses a quicker to run app requiring no setup called Synapse. Despite having the other pieces set up I just used the synapse app for this one.
You simply copy a few macro files into the quartz libraries, run synapse to start the kinect and then run the Quartz simple skeleton.
This requires a cactus stance for calibration, unlike my previous uncalibrated example. Then away it goes.
I am by now means a reference pattern for the Choi moves, but I did try a yellow belt pattern and also a yellow senior speed drill, plus a few others. I also threw in some mistakes like punching from the front foot not the rear to see how easy it is to spot them.(I also tried a music replace with youtube, tongue in cheek 🙂 )

I have to say I was impressed! There are a whole load of other coded demos that show acceleration on a particular body part, or a very cool one involving shaping and moving a cube as a gesture object.
Now I have to figure out how to write Quartz macros, just another tech language 🙂
It also looks like a great way to combine the inputs from something like the BPMPro with the Kinect that I mentioned yesterday
Roll on tonight and another session at South Coast CKD to keep learning and on the journey

Run Makie Run

Firstly this is not related to anything official to do with any major sports event, so no brand police actions thank you very much.
The other day I blogged about using some homebrew kit to make martial arts related monitoring. It is an ongoing side project, but as part of that I mentioned using the Blobo for some of it as it has a motion sensor. Well in the course of thinking that through I wondered if I might be able to do something a little quirky to bring my Makie alive.
With the hollow head in the Makie designed for an arduino lily pad I thought I would see what happened if I put the Blobo in as the brain. I mean a 3 axis bluetooth transmitting fully functioning device seems like a good idea and saves a lot of soldering 🙂
IMG_3960
The Blobo nearly fitted in the head. Without the eyes in it is the right size as is.
However much of the Blobo is designed to give it a decent size and feel, so with the guts ripped out it looks a much better fit.
IMG_3962
So here he is going for a “run” with the Blobo sprinting app.

I have the SDK kindly provided by Martin Gossling at Quarternion so I can write some more Makie specific Unity3d applications. So if you pick up the Makie or move him at all he will be able to respond.
Trying this project out led Martin to get in touch re the Choi Kwang Do requirements and in a wonderful bout of serendipity they have repackaged and upgraded some of the same principles of the Blobo into BPMPro which looks like a great thing for CKD practitioners to give a go so watch this space as this looks very exciting 🙂 I think that combined with Kinect to some brilliant insights and ways to fine tune technique (not just power an speed) will evolve.
So this has merged the threads of 3d printing with Makie, homebrew use of technology for things other than it was intended (Maker Culture), the modern martial art of Choi Kwang Do and some Unity3d. Funny little ideas need to be explored as they are often lynch pin to a wider goal. “Feeding edge: Taking a bite out of technology so you don’t have to” 🙂

Technology and Martial Arts

After a great Hampshire Choi Kwang Do festival I have been pondering ways to use some of the readily available technology to help support the teaching of CKD.
CKD is a modern martial art and one that is not set in stone but evolves. Whilst I have only been learning (with predlet 2.0) for the past 6 months I have been impressed with the art’s flexibility.
At the festival we saw some technology to help measure and observe. All professional kit but I wondered what could be done in a maker style at home.
The first thing was to work out if I could build something to measure contact force or pressure. I was looking through my box of bits for the Arduino but then googled and found things like this. The pieces of foam that chips are delivered pushed into have an interesting property that when pressed their electrical resistance changes. They become pressure sensors. I got a small square of foam, put tin foil on either side of it, jammed multimeter probes into it and sure enough when you push on the foam the resistance drops. So next is to make a bit more robust connection, attach it to the arduino and see what happens with the foam gets punched rather than pressed.
The other thing I wanted to check was if the Kinect open source modules would respond quickly enough. I did a quick test using SensorKinect/OpenNI/NITE and it seemed to work. There is a way to go to be able to make sure that we can track the subtle elements of the movements but it will certainly help with some of the angles and stance positions.

I also have a cunning plan with the Blobo if I can get the dev kit to try it out but as it is a 3 way accelerometer with bluetooth connectivity to be able to count hits.

Old meets new – Learning Korean with Flashcards

You may have noticed I have been tweeting a little about my new found activity of the martial art Choi Kwang Do. I also wrote a bit on my personal blog here and here about the ongoing journey that both I and predlet 2.0 have started on with SouthCoast CKD
One of the interesting and enjoyable things about CKD is that whilst the moves and exercises are combat related it is not a competitive sport but about self improvement and dedication. It is as much about the mind and awareness as it is about the ability to punch and kick. As the founder Grandmaster Choi is Korean all the moves and instructions are in that language. I have never been great at learning languages for conversation, but I can apply myself to learn individual words and phrases. It is particularly good that these words and phrases then map to physical space so they work well with my visual and physical memory more than my verbal linguistic parts of my brain. It is this visual memory and use of space that fits with my interest and work in Virtual Worlds. It was also why I started training before CKD using my Xbox Kinect and the #UFC trainer. Shadow punching and kicking with an avatar but sensed and counted by the Kinect sensor got me onto this path.
This years #ufc #kinect (not including #ckd sessions)
Every couple of months in CKD we get to attend a grading to level up on the belt we are wearing (we have one this weekend). Once levelled up then the techniques you learn increase. Each of these techniques have a Korean phrase with them and in attending the classes you start to pick up what they are. As part of the grading you get tested on your Korean phrases too. It is not essential to learn them all but I have found it very helpful and an interesting exercise to try and learn something completely new not tech related for a change.
However I was sitting looking at the lists of words, I have about 100 (even though my belt is a subset of those) and thinking whats the best way to get these in my head. That evening I was watching a recorded BBC Click and along came Quizlet in the web roundup from @katerussell (thank you Kate!).
This simple little web site lets you make word pairs that it then forms into good old fashioned flash cards. These you can then read to yes yourself on, in this case choosing either korean to english or vice versa. It also create all sorts of other tests with the words, pairs games, multiple choose etc. It has been very useful for me so far and as it arrived in front of me serdipitously just as I was wondering what to do it made sense to follow it up.
Here is my attempt at the Choi Kwang Do terms sheet, or a cut down version. Its a start 🙂