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Viewing 15 posts - 31 through 45 (of 53 total)
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  • in reply to: USB Button Solution #103689

    liudr
    Participant

    Here is my rain and dry button box I built with Arduino:

    https://youtu.be/dn63OG_Z_Fs

    The buttons are flashing periodically to invite people to press them. These buttons are essentially keys ‘1’ and ‘2’ so I can use them in calibration programs as well. Later I will add two more buttons on the underside to start the program and shut down the machine.

    • This reply was modified 1 year ago by  liudr.
    • This reply was modified 1 year ago by  liudr.
    in reply to: USB Button Solution #103648

    liudr
    Participant

    I decided to build my own box with buttons and arduino. I’m hiding a button under the box for shutdown. Hopefully there will be enough space in the box to have a cycle button. Great idea! Will post my story once I get mine working.

    in reply to: VRUI menus are too small, cant read them #103523

    liudr
    Participant

    metamedian,

    I have the same issue with my GTX 750 Ti card and I use the Nvidia driver. So your method is to switch video driver to see the larger menu? After you go back to Nvidia drivers, then are the menus back to normal? How do you install noveau drivers? I am a bit of a novice on Linux. This issue is very annoying and it’s testing my fine motor skills when selecting tiny blurry menu items!

    in reply to: Glitch / freeze on Startup #103432

    liudr
    Participant

    Daniel,

    Could you please post the hardware in your setup?

    in reply to: Problem with my computer #103430

    liudr
    Participant

    Javier,

    I didn’t try this but I thought that the only part of the program that needs a good graphic card is the water simulation. If you are OK with that, you can certainly give it a try. You said the calibration didn’t go well. What happened? I had some issues with calibration and I think it was the Kinect was a bit too far away from the sand box.

    John

    in reply to: AR Sandbox Markers #103429

    liudr
    Participant

    I am wondering about the same thing. I suspect that the answer is not trivial.

    in reply to: Install offline #103428

    liudr
    Participant

    Marian,

    What are the reasons that compelled you to not install online? As far as I know, the source files of the ARSandbox are all online. If you want to install offline, you must obtain the files using another computer that is online.

    in reply to: Glitch / freeze on Startup #103427

    liudr
    Participant

    I have experienced this also. My setup is a Dell Inspiron 3668 with i3-7100 4GB and GTX 750 TI 2GB. I didn’t do an actual startup script but instead used the GUI feature of startup programs. It is a terrible GUI feature. There is no order which program runs first and next. I wrote a simple script to run that does a 30-second delay before running ARSandbox and added it to the GUI startup programs and it works. I don’t really like the solution. I’m more used to Debian where I run startup script after say auto login. I will look for ways to run ARSandbox after everything loads.

    in reply to: Two screens questions #103286

    liudr
    Participant

    David,

    I am with you. I produce and maintain open-source projects as well, software and hardware. Once in a while I get $5 to $20 donations from people I don’t know! It’s not really what I have to get but that’s what’s reminding me that people value my contribution. A post on my blog saying that my stuff is useful would be nice too. A small monetary donation per unit sold, helping noobs getting started with their own build, spreading the word, contributing to the source code… Anything helps I suppose. That’s why I’m here. I built two prototypes and my son loves playing with the sandbox! I’m also writing a proposal to make more units for water resources education in my state.

    Lingthay,

    It’s a wonderful tool! I can’t speak for Dr. Kreylos but I thought that more units means more science education and more people care about science and environment. I’d say it’s good for you!

    John

    in reply to: Projector Question #103281

    liudr
    Participant

    David G.,

    I’d love to see how you placed the mirror in the path of the projected image. Let us now when you have docs published.

    John


    liudr
    Participant

    So are you saying that the flickering is probably due to the Kinect plugged in to a USB 2.0 port on your old computer? I read somewhere (maybe not the most updated info) that Kinect’s driver only works on USB 2.0 port or something. Can you confirm that you connected your Kinect to your new computer’s USB 3.0 port with “SS” symbol next to the port and blue plastic inside the socket? I’ve been looking for gaming laptops that still feature at least one UBS 2.0 port. Maybe I shouldn’t have.

    John

    • This reply was modified 1 year, 4 months ago by  liudr.
    in reply to: Projector Question #103270

    liudr
    Participant

    I found reference here. Dr. Kreylos recommends the Kinect 40″ above the bottom of the sandbox.

    http://idav.ucdavis.edu/~okreylos/ResDev/SARndbox/Instructions.html

    Read the description below the figure.

    in reply to: Problems with CalibrateProjector #103269

    liudr
    Participant

    Hi,

    I think you are in the wrong folder. Here is the folder structure:

    Notice that both CalibrateProjector and SARndbox are in ~/src/Kinect-3.2/SARndbox-2.3/bin

    You should do cd ~/src/Kinect-3.2/SARndbox-2.3/bin and then run the two commands. Hope it helps.

    John

    in reply to: Projector Question #103263

    liudr
    Participant

    David,

    My system is about the same situation as yours, with a regular projector. It’s pretty tall! One thing I learned is that the Kinect should be mounted closer than the regular projector, around 1.2m (45″) from the bottom of the box. With Kinect mounted so far away as our regular projector, we were unable to calibrate the projector with targets.


    liudr
    Participant

    Thanks. I’m using GTX 750 Ti now. At times the system (i3-7100 dual core 3.9GHz max) still reports running out of time. It’s working fine despite of the messages. For my next system, I’ll give i7 a try with a better video card.

Viewing 15 posts - 31 through 45 (of 53 total)