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Connecting to Art-Net and sACN Streams

Discussion in 'Technical Support' started by Dany, Mar 2, 2017.

  1. Dany

    Dany Administrator
    Staff Member

    Jan 16, 2014
    Likes Received:
    (Please note that everything below applies exactly the same when connecting to an Art-Net stream via WYGALIZER, and when connecting to EDMX streams.)

    Before connecting to an Art-Net or sACN stream as per the instructions found in Appendices C and D of the WYSIWYG Reference Guide, it is important to understand that WYSIWYG does not connect to the stream itself, but, rather, to the respective driver which “listens” for (and to) that stream. (These drivers are installed together with WYSIWG.) Assuming that the instructions are followed correctly, the connection to these drivers will never fail. However, if the stream is not reaching the computer running WYSIWYG for whatever reason, the drivers have no Art-Net/sACN data to pass along to WYSIWYG and, therefore, fixtures (and other objects) in the file will not be able to react to the console’s output: beams will not turn on, automated fixtures’ heads will not move, etc.

    Also before connecting to the Art-Net/sACN stream, it is important to note that WYSIWYG is only able to make use of the network connection that was initiated first, when the computer booted up. In cases where the computer features multiple network connections (i.e. either one (or more) Ethernet and one WiFi interface, or multiple Ethernet interfaces) the order in which they are initiated is random; therefore, if the one that's initiated first happens not to be the one that connects the computer to the Art-Net or sACN stream, WYSIWYG will not be able to see the stream. As a result, when needing to connect to such a stream, all network interfaces except for the one through which the computer is receiving the Art-Net/sACN stream must be disabled.

    To check if the Art-Net or sACN stream is reaching the computer, you must use the Luminet Monitor or DMX Workshop utilities for Art-Net, or the sACNView utility for sACN; consult the documentation supplied with these utilities for information on how to use them. If these utilities do not show any incoming DMX values, consider the following:
    1. That a network connectivity issue (either at the hardware level -- bad cables, bad network cards, etc.-- or at the software level -- misconfigured IP addresses, wrong subnet, etc.) is preventing a proper connection between your computer and the console (or between the computer running WYSIWYG and the computer running the “PC version” of the console). Please consult Windows Help and/or the documentation that came with your console, or contact Microsoft and/or the console’s manufacturer for help with troubleshooting the connection. (CAST Software cannot provide such assistance, because neither Windows nor the console are CAST products.) It is important to note that the two devices must be in the same subnet in order for the stream to be visualized.

    2. That the console is not actually outputting the Art-Net or sACN stream. Please consult the documentation provided with your console, or contact the console’s manufacturer for assistance with this. (CAST Software cannot provide such assistance, since the console is not a CAST product.)
    Once you’ve confirmed that the stream reaches the computer (i.e. once DMX data appears within these utilities), exit the utility in order to prevent it from locking the stream to itself and therefore preventing the stream from being picked up by the Art-Net or sACN driver used by WYSIWYG. The driver will now grab the stream and pass the incoming data on to WYSIWYG, which visualizes it by turning beams on, moving fixture heads or mirrors around, changing colours, gobos, and so on, as per the console's output.

    Please note that WYSIWYG will visualize any incoming DMX data (as per the established DMX Universe bindings in WYSIWYG’s Device Manager) even if it is incorrect. A clear indication of incorrect data is fixtures not reacting to the console’s output as expected—beams not turning on, heads not moving as they’re supposed to, wrong colour or gobo, etc. Should this happen, please consider the following:
    1. That the patch in WYSIWYG does not match the patch on the console. Please double-check the patch on both, and correct any mismatches.

    2. That the fixtures’ operation mode/options which you chose in WYSIWYG (or simply never touched and were therefore left at their defaults) do not match the fixtures’ library profile which you patched on your console. In WYSIWYG, these operation modes/options are selected via fixtures’ Properties window > Fixture tab > Options subtab, and they must match the profile selected/patched on the console. (Such options are not available on consoles; instead, the same fixture may have several library profiles to choose from, with modes/options specified in the profiles’ names. If you do not find the profile you require, you should be able to request it from the console’s manufacturer.)

    3. That the console is outputting an incorrect Art-Net/sACN stream—which is the likely issue if the patch and fixture operation modes/options match. In this case, as above, please consult the documentation that came with your console, or contact the console manufacturer’s support department for assistance.
    * The Reference Guide is installed together with WYSIWYG (by default--unless you chose not to install it) and accessible from the Windows Start menu > CAST Software folder.



    P.S. Please note that WYSIWYG's AutoFocus or AutoPatch protocols/features cannot be used when connected to an Art-Net/sACN stream. These features are only available when connected to a console via its proprietary connectivity driver to which these features have been added, and it is up to console manufacturers to decide whether or not to implement them.

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