2011-04-16 02:12:03 +02:00
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2008-05-08 Lumiera Developers Meeting
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======================================
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:Author: cehteh
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:Date: 2008-05-15
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__Participants__
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* cehteh
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* joelholdsworth
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* ichthyo
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* raffa
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* Wes``Lappy
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* gmerlin
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Boilerplate
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-----------
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Organization of this meeting
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* cehteh writes the protocol
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Webpage-Infrastructure, Maintenance
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-----------------------------------
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2025-09-08 04:04:39 +02:00
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_Cehteh_ put this on topic because it's really urgent to bring up some
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2011-04-16 02:12:03 +02:00
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infrastructure to manage the information we produce.
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The Lumiera pages on pipapo.org were always meant as intermediary
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solution. Pipapo.org gets much spam on the MoinMoin wiki and _Cehteh_
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expresses that he wants to move pipapo.org to a new infrastructure
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based on Asciidoc and Git he created
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(see [purple]#`http://git.pipapo.org/uWiki.html` <broken-URL>#).
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This system is barely usable
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and needs lots of work to be completed. It would be nice to use it for
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Lumiera too, if the others agree. Maintaining and extending
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(scripting) needs someone who knows shell scripting and doesn't need
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to be done by the core devs freeing their resources to work on
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Lumiera. _Cehteh_ expresses that none of the people who proposed to
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help before showed up yet. WesLappy tells he might help (addendum not
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this week, because he is busy).
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2025-09-08 04:04:39 +02:00
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Next there was a suggestion by _Cehteh_ to convert the TiddlyWikis to
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Asciidoc. Ichthyo expresses that he likes the TiddlyWikis, Joel
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mentions that they feel a little odd. Generally we all agree that
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they have some problems in sense of workflow and merging.
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2025-09-08 04:04:39 +02:00
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_Ichthyo_ makes the suggestion to keep the TiddlyWikis as scrapbook and
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build up ``official'' documentation based on their content in
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whatever-we-use-then (Asciidoc) documentation system. All agree on
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2011-04-16 02:12:03 +02:00
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this approach.
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2025-09-08 04:04:39 +02:00
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Back to the new wiki, _Cehteh_ suggests to make stricter access rules to
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prevent spam: ``There will be a group of `Validated' people which
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following rules: only `Validated' people can edit general content and
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`Validated' people can add new people to `Validated' themselves''. That
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means that we can have a lightweight self-administrating
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authentication where new people have to be introduced by someone who
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is already there.
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_Ichthyo_ suggests to send a reply to Serge G., who send an introduction
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to the cinelerra mailing list expressing that he would like to help.
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_Raffa_ will take care of content/design as much her time/knowledge permits.
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Conclusion
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~~~~~~~~~~
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* We really need someone to help with the webpage scripting.
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* Documentation needs to be well organized and moved over.
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* Content of the pipapo.org MoinMoin wiki should be moved over.
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* The new website should be well organized with a nice looking front page
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* All other documentation should be below that
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2025-09-08 04:04:39 +02:00
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Whats pending in the DesignProcess / RfC
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----------------------------------------
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MistakestoAvoid
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~~~~~~~~~~~~~~~
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link:{rfc}_dropped/MistakestoAvoid.html[RfC: Mistakes to avoid in the Lumiera Design]
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2025-09-08 04:04:39 +02:00
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_rick_777_ wrote a "MistakestoAvoid" page which explains some possible
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gotchas. We basically agree with most points there while we already
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decided to address some things differently than he suggested. One
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notable difference is that we do not intent to provide a windows
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version of Lumiera, which was explained in several places. _Cehteh_
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added some comments to the page explaining some things.
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nothing more to discuss in \'Ideas', we go over to \'Drafts'
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ArchitectureOverview
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~~~~~~~~~~~~~~~~~~~~
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link:{rfc}/ArchitectureOverview.html[RfC: Architecture Overview]
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2025-09-08 04:04:39 +02:00
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_Cehteh_ suggests to put that drawing under version control, as .fig.
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Ichthyo explains that it is already a `.SVG` and that he does not favour `.fig`.
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Conclusion:: We agree to keep it as `.SVG`, add it to the repository and
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improve/complete it.
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GitSubmoduleTransistion
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~~~~~~~~~~~~~~~~~~~~~~~
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link:{rfc}/GitSubmoduleTransistion.html[RfC: Git Submodules]
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2025-09-08 04:04:39 +02:00
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Another suggestion made by _Cehteh_ is to make managing of subprojects
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within the sourcetree easier. _Joel_ and _Ichthyo_ object that it is not
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really needed now and needs more understanding of Git. _Ichthyo_
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suggests that the documentation might be separated into its own Git,
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he further explains that the things are not settled yet and we don't
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know if we will some rearrangements and movements of files between
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modules.
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Conclusion:: We transform the documentation to a submodule and see how
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it works. Other things will be decided much later.
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GlobalInitialization
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~~~~~~~~~~~~~~~~~~~~
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link:{rfc}/GlobalInitialization.html[RfC: Global Init]
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2025-09-08 04:04:39 +02:00
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This topic is discussed and agreed on the RfC page already.
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Conclusion:: finalize it
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MasterRepositorySetup
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~~~~~~~~~~~~~~~~~~~~~
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link:{rfc}/MasterRepositorySetup.html[RfC: Shared Master Repository]
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Setting up an master repository was decided on the last meeting.
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_Cehteh_ now set one up which also does some automatic, but intended
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fragile merging from subsystem maintainer branches.
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1. it updates automatically for the maintainers repo for conflict
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free fast-forwards
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2. it can always be overridden with explicit pushes
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The others agree on the setup.
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Ichthyo stresses that maintainers shall watch that their `master'
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branch should compile cleanly and pass the testsuite always, test
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which are not operational should be tagged as PLANNED. We all
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agree, while cehteh's master is currently in a broken state (note:
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fixed now).
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Then a short discussion about building and synchronizing the docs
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follows. Problem is that docs build in maintainer branches are
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different for each branch, rsyncing them up to the server will always
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change a lot of things. We agree that the ``official'' docs shall be
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build from the LUMIERA/master repository, preferably on the "devel"
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VServer which has to be set up.
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Conclusions: Make this final, setup build environment in the devel
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server and build docs there.
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NoBugFlags
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~~~~~~~~~~
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link:{rfc}/NoBugFlags.html[RfC: NoBug flags]
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Defining a debugging control hierarchy. This is work in progress and
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_Cehteh_ explains that he works it out and deploys it, this depends on
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the link:{rfc}/GlobalInitialization.html[GlobalInitialization] decided earlier.
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Conclusion:: accepted, finish and finalize it.
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Further Technical Discussion
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----------------------------
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_Ichthyo_ asks how the GUI will be pulled up. Since he didn't attend IRC
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discussions recently he has no information yet whats going on. We
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explain him that we already made some discussions. Integrate the GUI
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into the build system probably linked as library, nothing finally
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decided yet. Communication will go over the plugin/interface facility
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(Plain C API). This things should be worked out and documented in
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link:/x/DesignProcess.html[RfCs].
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2025-09-08 04:04:39 +02:00
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_Cehteh_ made a small tool `./admin/headercheck` which will gradually
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extended to proof that headers are sufficiently selfstanding.
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Progress
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--------
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_Cehteh_ finished low level file handling and working on mmapping and
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frameprovider next. When thats finished, the finalization of the
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Plugin loader and interface definition things is the most urgent thing.
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_Ichthyo_ works on the builder internals and next on some sort of
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``connection manager''.
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_Joel_ goes on with GUI programming and integrating it into the source
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tree next.
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2025-09-08 04:04:39 +02:00
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_Gmerlin_ and _cehteh_ discuss about how to handle the index files which
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avdecoder uses internally. _cehteh_ would like to manage them in the
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Lumiera backend to, because filehandles are a precious resource.
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_Gmerlin_ explains that this index files are just loaded and kept in
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memory. So this poses no problem for filehandle exhaustion. We will
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discuss this further via email.
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2025-09-08 04:04:39 +02:00
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_Cehteh_ suggests that we should think about some kind of
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preferences/registry sometime next to store default configs.
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2025-09-08 04:04:39 +02:00
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A a discussion followed about how messages are passed between GUI and
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core. Generally we will use the interfaces defined by the plugin
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system. _Gmerlin_ says that he uses message queues in `gmerlin', _Joel_
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requests that a lot of things should be done synchronous and he wants
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to avoid message queues. _Cehteh_ suggests to use use the scheduler for
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GUI things too. For the parts where the GUI interacts with the high
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level proc model _ichthyo_ and _joel_ agree on working something
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(synchronous) out. _Ichthyo_ stresses that the edit core is not
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threadsafe by design and relies on the backends scheduler.
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The underlying builder might sometimes to expensive for synchronous
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calls (_ichthyo_ plans a rule system there) this needs to be worked out.
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_Ichthyo_ explains that the builder needs to detect cycles and check if
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the high level model is translateable into the low level model (in
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case plugins git removed and so on). Parts in the render graph which
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are not ``doable'' should be flagged as erroneous but not dropped since
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one doesn't want to loose project information when loading a project
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on a machine with different installed plugins. In any case it should be
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possible that the GUI gets immediate synchronous feedback for such
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things.
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Next Meeting
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------------
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Next meeting is on 5th June 21:00 UTC
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