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DOC: minutes of FrOSCon meeting

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Topic: proposals for Lumiera Workflow
Present:
- Wouter Verweijlen
- Benny Lyons
- Hermann Voßeler

Note: This commit creates a new subsection
      for the discussion related to Wouter's »Lumiera Workflow Proposals«....
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Meeting at FrOSCon 2025
=======================
Date: 2025-08-17
Author: Benny Lyons and Hermann Voßeler
:toc:
Present::
- Wouter Verwijlen
- Benny Lyons
- Hermann Voßeler
Endgoal::
To produce a design document.
This Meeting is based on the document link:TODO[»Lumiera Workflow Proposals«] by Wouter Verwijlen.
Wouter traveled to FrOSCon to meet the core team in person. This meeting discussed some central points
of the planned workflow support in the Lumiera GUI. We discussed problems, agreed on various points
and decided to produce a design document. Here we attempt to reconstruct and document the original meeting.
Points discussed
----------------
We agreed upon the importance of a _Magnetic Timeline,_ as introduced by Final Cut X. However, our
Placement concept [TODO Link] which predates FCX's release [TODO source] shares similar goals but
its scope is more far-reaching. We consider _Magnetic Timeline_ to be an important advancement to
legacy track oriented GUI schemes; but it is more mouse confined and does not support several Control
Systems footnote:[Mouse, keyboard, pen, hardware controls] on an equal footing, which is our vision.
Modes, Tools and Views
~~~~~~~~~~~~~~~~~~~~~~
Modes are generally frowned upon in the User Interface Design discipline. On the other hand, they enjoy
popularity in video editing applications. Tools and Views were introduced to improve the usability
of Modes. We agreed to adopt tools as the more preferable system, but only if we manage to develop
a suitable handling mechanism that can be used naturally throughout all Control Systems.
Taking inspiration from Blender, Hermann proposed a fundamental shift by extending the scope of tool usage
to the entire UI. To do this, we agreed to introduce a top-level tool to navigate throughout the UI.
Wouter expressed some concerns on how effect parameters and mixer stripes could be accessd. This
remains a problem to be resolved. We agreed that this default navigation tool should map down
naturally to conventional usage of the mouse.
We discussed that a consequence of that decision might be to introduce a spcial tool dedicated
to dragging and moving clips, but we were concerned that such a mode might hamper fluid working
with the UI. It seems preferrable to introduce the moving of clips as a sub-mode into the
navigation tool, with the option to lock moving of clips.
Wouter introduced a context sensitive tool palette which is rendered as an overlay in the timeline UI.
The ability of Tools to support sub-modes is a simple extension of this proposal.
With this functionality, it would be then be possible to switch between trim-, roll-, slide- and shuffle-edit
after activating the edit tool. Similarily, the _gear switch_ as proposed in a previous online discussion
would be integrated as a sub-mode if a user decided to manipulate any setting value.
Internatinalisation
~~~~~~~~~~~~~~~~~~~
The language of the UI is English. This does not mean that we exclude any language
(all contributions are welcome). Certain words and terminology should never be translated, e.g.,
Track, Clip, Placement, ... . We allso do not support translations that require a re-ordering
of UI elements such as languages written right-to-left. This is due to priorities that we define.
Unlimited Placement Constraints
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Agreement on all points [TODO]
Routing
^^^^^^^
Hermann explained how the routing in Render Engine is based on Placements.
All data streams are grouped according to the medium (video, audio,...) by default.
Mixing-groups can be automatically established if resources are tagged.
Layering order
~~~~~~~~~~~~~~
Grouping Devices
~~~~~~~~~~~~~~~~
Target audience
~~~~~~~~~~~~~~~
Conclusions
-----------

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Lumiera Workflow Proposals
==========================
Date: 2025
//MENU: Workflow Proposals Verwijlen
- TODO include full text of from Wouter
- link:FrosconMeeting.html[Discussion at FrOSCon 2025]

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Design Documents: Workflow
==========================
//MENU: prepend child LumieraWorkflowOutline
//MENU: put child InterfaceConcept_Varga after LumieraWorkflowOutline
In our discussions, the term *Workflow* denotes specific considerations about _the way_
a given task can be achieved, within the application, in the most suitable and stringent fashion.
This effort is closely related to GUI and interface design, but likewise quite integral,

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<node CREATED="1755555133354" ID="ID_830170698" MODIFIED="1755555167568" TEXT="hatte ich vor &gt; 10 Jahren bei der LAC Utrecht kennengelernt"/>
<node CREATED="1755555168135" ID="ID_106572724" MODIFIED="1755555192830" TEXT="war Fr&#xfc;hjahr 2025 wieder in einem Entwicklertreffen auf IRC aufgetaucht"/>
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<node CREATED="1755555238933" ID="ID_776839044" MODIFIED="1755555245419" TEXT="baut das schrittweise aus"/>
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<node CREATED="1755556805699" ID="ID_1983034292" MODIFIED="1755556820358" TEXT="ich greife eine Idee aus Wouter&apos;s letzter Version auf">
<node CREATED="1755556828897" ID="ID_1292446432" MODIFIED="1755556852232" TEXT="er schl&#xe4;gt vor: Art des Trim kann nach Wahl des Trim-Tool noch ge&#xe4;ndert werden"/>
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<node CREATED="1755556920393" ID="ID_1329266614" MODIFIED="1755556947710" TEXT="ich suche seit langer Zeit nach einem radikal-einheitlichen GUI-Konzept">
<node CREATED="1755556949740" ID="ID_271446237" MODIFIED="1755556967520" TEXT="ich m&#xf6;chte &#xbb;Gestures&#xab; in mehreren &#xbb;Control-Systems&#xab; implementieren"/>
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<node CREATED="1755557522468" ID="ID_362435549" MODIFIED="1755557524357" TEXT="offen">
<node CREATED="1755557526532" ID="ID_1178754034" MODIFIED="1755557541412" TEXT="l&#xe4;&#xdf;t sich das konsistent durchziehen?"/>
<node CREATED="1755557541925" ID="ID_1173750228" MODIFIED="1755557562298" TEXT="funktioniert es auch mit Effect-Settings und Mixern?"/>
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<node CREATED="1755558414107" ID="ID_804074577" MODIFIED="1755558418411" TEXT="need Diagnostics?"/>
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<node CREATED="1755559313671" ID="ID_811242477" MODIFIED="1755559332439" TEXT="Wouter hat verstanden, da&#xdf; ich ungern mehrere Konzepte einf&#xfc;hre"/>
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<node CREATED="1755559385369" ID="ID_310970531" MODIFIED="1755559409569" TEXT="er f&#xfc;rchtet, da&#xdf; durch Einfalten/&#xd6;ffenen/Schlie&#xdf;en die Struktur un&#xfc;bersichtlich wird"/>
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<node CREATED="1755559549728" ID="ID_231845718" MODIFIED="1755559561547" TEXT="brauche eine Zwischenstufe die vertikal Platz spart"/>
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ich sehe das als <i>G&#252;nstige Gelegenheit</i>
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derzeit (2025) konzentriere ich die Arbeit auf die Integration der Kern-Applikation
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