MWorks with ViewPixx monitors

Yasmine El-Shamayleh's Avatar

Yasmine El-Shamayleh

20 Nov, 2019 03:24 PM

Hi Christopher -

I'm a new faculty member at Columbia University - and a close colleague of Najib Majaj (I did my PhD work with Tony Movshon at NYU).

I'm setting up my lab - and very interested in using MWorks (in combination with Blackrock, Eyelink and a ViewPixx3D monitor).

I know that the Movshon lab already uses MWorks with Blackrock and Eyelink - but I don't know if anyone is using it to display images on a ViewPixx monitor.

Any reason this is not possible? Thought I should ask before buying very expensive monitors!

Many thanks,
Yasmine

  1. Support Staff 1 Posted by Christopher Sta... on 20 Nov, 2019 03:51 PM

    Christopher Stawarz's Avatar

    Hi Yasmine,

    While I have no experience with VPixx monitors myself, some other folks have reported using them with MWorks, so I guess it's possible. As long as you can connect it to a Mac via DVI/HDMI/DisplayPort/etc., there shouldn't be any issue.

    However, MWorks won't have access to any of the VIEWPixx's integrated I/O functions, so any signals you want to capture from the VIEWPixx will need to be conveyed to an I/O device that MWorks does support. It sounds like it may be possible to implement direct communication between MWorks and the VIEWPixx (the data sheet mentions a "low-level ANSI C API", which sounds promising), but I'm not aware of any MWorks users who have done this. If it is possible, I could create an MWorks plugin that provides this integration, but I would need access to the actual VIEWPixx device to do so.

    I hope that helps. If you have any other MWorks-related questions, please don't hesitate to ask!

    Cheers,
    Chris Stawarz

  2. 2 Posted by Yasmine El-Sham... on 20 Nov, 2019 04:05 PM

    Yasmine El-Shamayleh's Avatar

    Thanks for this quick response!

    Looking forward to working with you on all this!

    Cheers,
    Yasmine

  3. Christopher Stawarz closed this discussion on 22 Nov, 2019 04:02 PM.

  4. Christopher Stawarz re-opened this discussion on 10 Mar, 2020 03:48 PM

  5. Support Staff 3 Posted by Christopher Sta... on 10 Mar, 2020 03:48 PM

    Christopher Stawarz's Avatar

    Hi Yasmine,

    Two quick questions regarding the MWorks/ViewPixx integration:

    1. Are you planning on using a RESPONSEPixx box with your VIEWPixx?
    2. Do you need support for analog input and/or output?

    Thanks,
    Chris

  6. 4 Posted by Yasmine El-Sham... on 10 Mar, 2020 05:07 PM

    Yasmine El-Shamayleh's Avatar

    Hi Chris -

    Hope you're well - and here are two quick answers to your questions:

    Are you planning on using a RESPONSEPixx box with your VIEWPixx?

    NO

    Do you need support for analog input and/or output?

    I would like to get the values for pixel refresh out of the monitor (so that it can be used to sync data) - but I believe that's all digital not analog, correct? Any idea what people use analog input/output for?

    Thank you!
    Yasmine

  7. Support Staff 5 Posted by Christopher Sta... on 10 Mar, 2020 05:54 PM

    Christopher Stawarz's Avatar

    Hi Yasmine,

    Thanks for the quick answers!

    I would like to get the values for pixel refresh out of the monitor (so that it can be used to sync data) - but I believe that's all digital not analog, correct?

    Correct. You can output either the VSYNC signal (on digital output pin 23) or the RGB value of the upper left pixel on the screen (presumably using all 24 digital output bits). Either way, it's all digital.

    Any idea what people use analog input/output for?

    They can be useful for general purpose I/O tasks. For example, some folks in the Jazayeri lab use analog levers as an input device (like a pressure/force sensor, I think), and they record that signal as an analog input. Another lab uses analog output to drive a laser.

    Chris

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