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GDTF discussion on LD at Large Podcast


Petr Vanek - Robe

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Thanks @mgeasey@clearallvisualsllc.comand others for the GDTF conversation on LD at Large Podcast. Good conversation, questions and answers. Here is the episode:

https://plsn.com/podcasts/gdtf-or-gtfo-podcast/

Below are some of my notes and comments, mostly from the Robe side, feel free to ask for more clarification.

- Matt kicks the discussion off by explaining that GDTF is not only a DMX profile but a container with data which a console, planning tool or a visualizer can use for their internal use cases.

- Discussions about Media Servers, "standard vs custom" mapping/profile, the bottom line is: besides "standard profiles", Media Server can generate GDTF on the fly, even for a "non standard mapping", the GDTF advantage is that now it can be implemented by the software only once in a open, standard format → GDTF, rather then having to implement each manufacturer's library type/style. Plus, there are media server specific features in GDTF 1.1.

- Discussions about attributes and naming:

    - will attributes grow out of proportion while still allowing custom ones? The development group tries to be flexible and at the same time good gatekeepers of attributes. For a simple explanation, Attributes, for the most time, describe real-world behavior, which is then implemented by visualizers. This can help a lot when choosing/searching for a correct attribute.

    - can channels be named by the user? Yes, GDTF provides possibility of naming channels/channel functions via the Pretty (this is used in a global context on MA3). The first ChannelFunction of a channel would also be considered when looking for a channel name, so it's Name and OriginalAttribute values should be used, by convention.

    - where do we request new attributes? Requests for attributes can be submitted via forum.

    - where do we request new attributes/features? Either via forum or developers can join our technical meeting. People do actually join, on occasions or regularly. We do see representatives of ETC, Chamsys and others in the bi-weekly Zoom call.

- Is detail about shortcut of movement of an element defined - Yes, this is supported via dedicated attributes.

- Can random strobe be 100% emulated? At this point not to the extend to 100% replicate exact behavior (algorithm) which often is not available, but randomness is supported.

- Are weight, power draw of a device supported by GDTF? Yes, these parameters are part of the soon to be published 1.1 version.

- What about clamps weight? Clamp/adapter/accessories can be an extra GDTF file. Also, GDTFs could be linked to each other. The planning software then can use there values to calculate total weight.

- Is iris open/close at 0/1 or 1/0? We define the real world behavior in GDTF. User then can modify the behavior of the console in the console.

- Who "signs off" a GDTF file? Ideally, a fixture manufacturer is the one who makes the file. Having responsibility for one file (GDTF) is, while still quite complex, possible.

Cheers

Petr

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