posted by Brian Lagunas

posted by shaggygi

posted by ivan_

Why not WPF? It could have been WPF. We choose SL in part because it has low deployment requirements (no .NET on the box, for example) and because we wanted to see if we could be effective within the more constrained SL 4 APIs. We also had our eye on the phone.

Is it available to members? Not yet ... if ever. Members have a SL app which they log into and can use for self-help services like managing their own class schedules. The kiosk is for casual interaction and deliberately constrains its time window to the current week. We hope the kiosk will encourage face-to-face member interaction ... a different experience than SL at home.

That said, we like keeping options open ... another point in favor of an SL implementation over a WPF implementation.

Not knocking WPF. I'd use WPF if something about the app demanded a desktop. But since all of our requirements could be met with SL 4, we thought it prudent to fit within its constraints.

Shaggygi - We expect to re-purpose this example to a more general "conference session" example and open the code up for all to see. It's use of MVVM, Caliburn, and DevForce may inspire others.

Ivan - I haven't a clue. Not even sure where to go for the answer. Try http://stackoverflow.com/.

posted by Ward Bell

I just wonder, how does the MULTI-touch work here, cause u were using just one finger all the time? Is it supported somehow at all?

And how often do you have to touch something three times to make it work like at 6:24?

posted by iamsed

How did you like Caliburn?

posted by ivan_

Sometimes I was at an odd angle (at 6:24 I was standing above and to the right) which led me to miss the target area (I kept missing "All").  Sometimes it just seems sticky ... especially if you haven't touched the screen in awhile; darned if I know.  It doesn't seem to be specific to SL 4. I've had the same experience on every touch device I've ever tried. 

One lesson is that you need sizeable target areas. If you have a touch screen at home (e.g., PDC laptop) you know what I mean when you try it with regular apps (e.g., the browser); fingers need big targets.

We didn't want gratuitious multi-touch and we didn't want to explain multi-touch gestures to casual passers-by. So we have to piggy back on the average Joe's expectations. Right now there aren't a lot of multi-touch expectations. Pinching is becoming widely recognized ... and we'll bring that to the party when we have something we want to zoom (the videos for example). Meanwhile, we're keeping it simple and seeing what folks actually do when confronted with the kiosk.

Caliburn has been great. Removes a lot of noise simply by wiring things up by convention; convention that I'd follow anyway just to keep my sanity.

More later on GPU acceleration; I didn't work on that part myself.

posted by Ward Bell

Valters

Photologs

posted by Fotostudija