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The Leap Motion Controller Now Supports Linux

ubuntuvibes.com

11–20 of 41 posts

Re: The Leap Motion Controller Now Supports Linux

#11

Does anyone have any real-world experience using the Leap? It looks cool as hell but I'm hearing rumors that it doesn't work well in the presence of halogen / incandescent bulbs or direct sunlight. If I have to carefully control the lighting to be able to use it, that's a dealbreaker for me.

It gets testy around walls.

My experience is that in a moderately-lit situation (or a low-lit one) the thing works pretty great.

Re: The Leap Motion Controller Now Supports Linux

#12

Does anyone have any real-world experience using the Leap? It looks cool as hell but I'm hearing rumors that it doesn't work well in the presence of halogen / incandescent bulbs or direct sunlight. If I have to carefully control the lighting to be able to use it, that's a dealbreaker for me.

Yes, I have a dev kit and have played around with a it a bunch. I'm very impressed with the low latency and high framerate (~110 fps via usb 2, rumored to go higher for usb 3.0). Latency is unquantified but barely perceptible even when moving quite quickly.

The potential performance issue is with dropouts and interference. It's pretty easy to have detected fingers drop in and out, mostly due to fingers occluding each other. With a level of dynamics modeling/filtering built on top of the leap SDK, it may be possible to minimize the impact of dropouts.

overall, it does seem like a reasonable way to interact with a computer, especially for drawing or manipulating objects, etc.

I unfortunately can't post a video because we're building the leap into a trial clinical device at the moment and its out of my hands.

Re: The Leap Motion Controller Now Supports Linux

#13
post #3

Earlier quoted context omitted.

Also, specifically Ubuntu - it depends on a higher version of libc6 than is available in everything up to and including unstable in Debian repositories, it's only available in experimental.

Also known as Steam syndrome. Does this trend worry anyone else? Limiting usage to one distro can't be a good thing.

Currently using Steam on Linux Mint. Works as well as it ever has.

Re: The Leap Motion Controller Now Supports Linux

#14
post #5

D: huh, kinda looks cool but I think I'd get tired of holding my hands up all day :P D: s'what keyboards, palm rests and elbow rests are for S: yeah, i hear you S: i played around with it for about 20 minutes and my arm was aching So yeah. this is me being skeptical

Mount the device at the end of an armrest.

Standing desks would be a nice alternative too. Avoid the chair and have the thing facing upwards instead of forward. You'd have to work out how to keep your body out of the picture (no pun... sorry, I can't lie). Then you're really avoiding compression of any sort of nerves, except maybe in your feet.

Re: The Leap Motion Controller Now Supports Linux

#15
post #5

D: huh, kinda looks cool but I think I'd get tired of holding my hands up all day :P D: s'what keyboards, palm rests and elbow rests are for S: yeah, i hear you S: i played around with it for about 20 minutes and my arm was aching So yeah. this is me being skeptical

These are things I've come up against in writing apps for it.

If I can lean my elbow on something it's OK. If I have to keep my hands up for very long, not so much fun.

I've been trying to restrict the broader movements to less-common actions (mode changes, for example) and then use simpler, arm-on-table doable actions for other things.

Re: The Leap Motion Controller Now Supports Linux

#16

Earlier quoted context omitted.

Also known as Steam syndrome. Does this trend worry anyone else? Limiting usage to one distro can't be a good thing.

Currently using Steam on Linux Mint. Works as well as it ever has.

Mint being more or less a fork of Ubuntu, saying it works on Mint does not say much about the support for other distros.

Re: The Leap Motion Controller Now Supports Linux

#17
post #11

Does anyone have any real-world experience using the Leap? It looks cool as hell but I'm hearing rumors that it doesn't work well in the presence of halogen / incandescent bulbs or direct sunlight. If I have to carefully control the lighting to be able to use it, that's a dealbreaker for me.

It gets testy around walls. My experience is that in a moderately-lit situation (or a low-lit one) the thing works pretty great.

A few times I've had to move stuff out of the way because it would trigger a false hand presence.

Lighting hasn't been an issue for me; I get assorted warning messages ("Bright light!" "Low light!") but it doesn't seem to make a noticeable difference in what I've been doing.

I tried shining a laser pointer on but it didn't do anything. That was disappointing. :)

Re: The Leap Motion Controller Now Supports Linux

#18

Does anyone have any real-world experience using the Leap? It looks cool as hell but I'm hearing rumors that it doesn't work well in the presence of halogen / incandescent bulbs or direct sunlight. If I have to carefully control the lighting to be able to use it, that's a dealbreaker for me.

Yes, I have a dev kit and have played around with a it a bunch. I'm very impressed with the low latency and high framerate (~110 fps via usb 2, rumored to go higher for usb 3.0). Latency is unquantified but barely perceptible even when moving quite quickly. The potential performance issue is with dropouts and interference. It's pretty easy to have detected fingers drop in and out, mostly due to fingers occluding each…

Clinical devices are an awesome idea for this... nice one! Having worked on systems in hospitals before, I couldn't believe the number of times users had to handrub etc. each time they went from handling our scanners back to the actual product they were working with.

Congratulations on an awesome way to remove that step.

Re: The Leap Motion Controller Now Supports Linux

#19

Does anyone have any real-world experience using the Leap? It looks cool as hell but I'm hearing rumors that it doesn't work well in the presence of halogen / incandescent bulbs or direct sunlight. If I have to carefully control the lighting to be able to use it, that's a dealbreaker for me.

These devices work surprisingly well. I have been fairly happy with its performance.

Re: The Leap Motion Controller Now Supports Linux

#20

Earlier quoted context omitted.

Also known as Steam syndrome. Does this trend worry anyone else? Limiting usage to one distro can't be a good thing.

Hasn't stopped other distros from supporting Steam, with Valve's blessings no less. I use Steam on my Arch Linux machines with zero issues.

I also a happy user of Steam on Fedora. I can run full-screen games just fine (been playing Faster than Light recently).
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