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previously on vvvv: vvvvhat happened in May 2018
que patcha? we did it. as announced here last time, we've finally finished our cleanup of the VL.Corelib. further we've released improved File IO nodes and a little new feature to frame your patches. we've also reworked how groups and categories work which we'll introduce in a blogpost soon. these then were the biggest chunks that we had planned for the coming release. so we're now soon reaching everyones favorite: release-candidate time!
|again some amazing new stuff:||and some fine updates to existing contributions:|
Who a a a a, sebl, you
When Tue, Jul 10th 2018 - 19:30 until Tue, Jul 10th 2018 - 23:00
Where Spektrum Berlin, Bürknerstraße 12, 12047 Berlin, Germany
Our first meetup was a blast. See the protocol if you missed it.
Lets keep it up.
Here is the second one.
This time we will have lasal (seehttp://aristidesgarcia-blog.tumblr.com/) exposing some insights of his latest project. Hopefully this gets us inspired, so that we can have spontaneous discussions/talks/showcases following.
So, feel free to bring your project/notebook/questions or whatever you want to share with the community.
There will be a bar serving us drinks.
There will also be other people around as well.
Thanks go to Lieke and Alfredo who are running the fantastic spacehttps://spektrumberlin.de.
Thank you Lieke & Alfredo.
RSVP & more info here.
Find out about what happened in the Protocol.
Some things take a while longer...
Planned since vvvv pre-beta1 we're happy to finally bring you:
Patches tend to do different things all at once and when looking at them it is often not clear at first sight which part of a patch does what. We have comments to add a few words at certain spots but those fail when we'd like to point at a group of nodes that do a certain thing. So the idea is to have a visual element we can place in a patch to frame a group of nodes and mark them with a color and label. This will help us to better structure and document large patches.
Frames are always in the very back of everything. They don't contain any other elements and they cannot be contained in other regions. They are mere visual elements and don't interfere with the functionality of a patch in any way.
To show/hide all frames in a patch at once, press CTRL+ALT+F.
To frame a bunch of selected nodes, press ALT+F.
Besides being structural elements, frames also allow you to take screenshots easily and repeatably. We're using this e.g. to automate generating screenshots for our documentation...
Here is how:
To create a quick screenshot of an area without even creating a frame, simply press S while making a selection. This will copy the screenshot to the clipboard (so you can simply paste it into the chat or a forum reply) and also place a .png next to the current .vl document.
Apart from single screenshots you can also record an animated gif of the area of a frame, here is how:
Note that the resulting .gifs are quite large. This is a known problem that shall be fixed at some point.
One more: In case you want to make a recording that includes panning or zooming in the patch you can create a frame in screenspace:
Here is to inform you about an update to general File input/output in VL available for testing in latest alphas today. Introduced 1.5years ago we've now completely reworked this from the ground up with the things we've learned so far.
We noticed that even though obviously you'll often want file io to be non-blocking, there are cases where blocking makes sense. So we now give you the following:
These are the most simple to use, very close to the comparable vvvv versions, only without error reporting, which we explain below.
In the case we want to have our file io non-blocking we learned that most likely we don't only want to load the file but often also do some kind of "transformation" to the data before it is used further in the patch. Most likely this transformation should also be non-blocking and we only want to be informed when that part is done as well. Introducing:
Instead of returning the actual data of a file, those readers return an Observable<Data> which allows you to do some further processing to the data before you get access to it in the patch using a HoldLatest node. For more information on working with observables see the chapter Reactive.
The writers in turn also take an Observable<Data> and write whenever new data is pushed through the observable. Like this you can e.g. write data received from an input via an observable directly to a file without ever touching the mainloop:
While in vvvv we had different names for file accessing nodes, like: Reader (Raw), FileTexture (EX9.Texture), XFile (EX9.Geometry Load), MP3Parser (File), ... we decided on a new naming scheme for VL:
Like this, typing "reader" or "writer" in the nodebrowser, you'll be guaranteed to find all available readers and writers.
Reading or writing files can go wrong for different reasons and the system needs a way to inform you about this. Previously, error handling of reader/writer nodes was inconsistent. Some ignored errors, others reported "Success" or returned an "Error Message". Having realized error-handling has to be supported on a higher-level than individually on every node, we have now removed all error handling from those nodes.
Now what? Right, so the first thing you need to know: If an error occurs at runtime it will be catched by vl and the node will go pink, informing you of the problem. Often this is enough.
In case you want to react to an error in your patch we again have to differentiate between the blocking and non-blocking case:
The solution for the blocking case involves using the experimental Try [Control] region and looks like this:
In a non-blocking scenario you can use the HoldLatestError [Reactive] node like this:
Who david, joreg, sebl, a a a a
When Tue, Jun 12th 2018 - 19:30 until Tue, Jun 12th 2018 - 23:00
Where Spektrum Berlin, Bürknerstraße 12, 12047 Berlin, Germany
Berliners and non berliners.
We thought it's time for a first VVVV Meetup in Berlin, which will hopefully turn into a series of patcher kucha style evenings.
The meetup is for vvvv and VL interested open minds in Berlin. It is a place to meet and exchange ideas and experiences. It is open to anyone who wants to join, no matter if you are a vvvv expert or beginner, a famous or breadless artist, a designhead or technologist, a piano player or techno musician.
Thankfully we will be hosted by Lieke and Alfredo who are running the fantastic spacehttps://spektrumberlin.de. It's a nice exhibition, performance and community building space. There will be a bar serving us drinks and some people around. Thank you Lieke & Alfredo.
Looking forward to meet you!
Ann-Katrin & David
We are happy to announce our first talks:
Find out about what happened in the Protocol
Growing a consistent library of nodes and presenting it in a clear way in the NodeBrowser is one of the great challenges we are facing. For the upcoming release we made this our focus: Clean up the core library vl offers and add new features to the NodeBrowser for easier browsing. So here is what you get:
The NodeBrowser got a couple of new toggle buttons that let you filter for different aspects. Aspects include "Advanced", "Experimental", "Obsolete"...
Button layout: Time goes from left to right (Obsolete -> Experimental), high level to low level from up to down (Basic -> Advanced).
By default you see all normal nodes, ie. those without any aspect. This is what we consider the 80% most important nodes for the casual user. Browsing the categories with this setting should give you a good, not too overwhelming overview of what functionality is available. For example it excludes all nodes using types we consider advanced, like Float64, Integer64,... mutable collections (like Array, ..) and often nodes that we hope you'd not have to use every day.
If you're looking for a node and it doesn't show up you can enable the "Advanced" aspect. This will include many more nodes. Obviously the distinction between normal and advanced is very subjective and will vary widely for different users and use-cases. So we are aware that there is room for debate and nodes may be moved between normal and advanced in future versions. The good thing about this is that such a move between aspects never breaks any patches!
You can toggle this filter button with the TAB key.
Includes nodes that we haven't yet fully committed to. Use those at your own risk. We don't guarantee that they'll still work the same in future versions
Includes nodes that we only still ship to not break existing patches. Don't use them in new patches. Most likely there is a better version of the node available already.
Nodes can have the "Internal" aspect set, meaning they are only visible within their .vl document but don't get exposed. So if another document references the first one, it will only see nodes that are not Internal. Using the toggle you can hide those internal nodes from the NodeBrowser to have a view on the node set that other documents would see.
The default setting for the filter buttons for Advanced, Experimental and External on startup of VL can be adjusted in the settings.xml file. If you are working a lot with .dlls from c# projects and you need to restart often, you probably want to enable the 'External' button by default.
For information about assigning nodes to aspects, see this gray book section and feel free to open a thread in the forums for specific questions.
When referencing an external .dll it often leads to a very large number of extra nodes in the NodeBrowser. Using the "External" toggle you can decide whether to see those in the NodeBrowser or not. Also the NodeBrowser is faster when it doesn't have to deal with those.
You can toggle this filter button with the SHIFT+TAB keyboard shortcut.
Aka process nodes got merged with their stateless siblings with the same name. If there is a process node and a stateless node with the same name you get a "..." icon in the NodeBrowser and after clicking on it you have to choose which one you want.
This category got the most rework so it's worth to mention its specific changes here.
VL encourages the use of immutable collections because they work very well together with the data flow paradigm. But when working with .NET libraries you often have to deal with mutable collections, so we now provide all commonly used collections of the .NET framework!
In general we try to do as little renaming as possible when importing data types. But for the collections we took the liberty to do the following renamings from the original ones:
All interfaces for collections moved into the Interfaces sub-category and we introduced a Common category that contains data types and nodes that are used together with collections like KeyValuePair or CustomEqualityComparer.
The nodes to create rectangles are much more flexible now. You can specify the size of the rectangle and an anchor position. Depending on the enum input Anchor, the position gets interpreted as any one of the significant points in a rectangle, like TopLeft, Center, BottomRight, ... Also the split node got this enum to specify which point of the rectangle the output position should be.
Additionally there is a node to create a rectangle spanned by two points and one to create a rectangle by the coordinate values of it's edges.
We also added Inflate and Scale nodes. Inflate can offset the rectangle edges in each direction by specific amount and Scale multiplies the size of the Rectangle in each direction. Both nodes come with version Centered and Uniform which assign the same value to the horizontal and vertical direction or the same value for all directions.
Some nodes (like the +,..) that you place in a patch are not tied to a specific type (like Float32) unless you make a connection to them. This is a very useful feature in vl and works 99% of times. Sometimes though you are smarter than the compiler and you want to specify to use a concrete implementation. In this case, after placing the node you now simply have to double click it to get all available options and chose one of those.
In general we're planning to stick as close as possible to the naming in the .NET world. This will make VL more inviting for external developers to join and also makes documentation more easy to find. Therefore we decided to rename "Disposable" back to "IDisposable" and "Destroy" back to "Dispose".
As always, head over to the alpha builds and report your findings.
Enjoy the new order and happy patching!
previously on vvvv: vvvvhat happened in April 2018
what a month. again so many new things... while we've still not managed to finalize our rework of the vl corlib, as mentioned here last month, you can already follow our developments using alpha builds if you're curious. we're now mostly done and are working on documentation and a blogpost to give you an easy overview of whats new.
meanwhile we've released an update to our HTMLTexture nodes which are now working for both DX9 and DX11!
signup for LINK is now closed. looks like all spots are taken, but if you were too late and are still interested, don't hesitate to still contact us. if anyone cannot take their spot we may still be able to...fill you in.
berliners save the date: June 12th will be our first vvvv/vl meetup. as of this writing already 11 participants have signed up! looking forward to getting to know you..
and finally: we've started collecting Universities and other Educational Institutions that are using vvvv/vl. we got 9 so far. please add yours there, if it is still missing!
exciting stuff as always, check these:
and a teaser:
since we can, the addonpack is now shipping with 4 new nodes:
What happened here is that the original EX9 based HTMLTextures have been replaced by the more generic HTMLView (Image) nodes which can easily be used for both EX9 and DX11 via the respective UploadTexture nodes introduced recently. So the EX9 and DX11 variants of the HTMLTexture nodes are now mere modules wrapping HTMLView -> UploadTexture.
The 'CEF' in the version for the DX11 modules is to have them distinguished from the also available contribution HTMLTexture (DX11) by gumilastik, with the same name, which is internally using a different backend than CEF. So horray, more choices for you!
Just in case you wonder: Obviously the DX11 variants still require the DX11 Pack to work!
And while at it we also updated the underlying backend to reflect Chromium 66.0.3359.117
With the Image nodes you can also pipe websites into the recently introduced VL.OpenCV. This maybe quite special interest but i'm sure one fine day someone will need to do exactly that:
Available in latest alphas now. Please test and report your findings!
When Wed, Aug 29th 2018 until Fri, Sep 7th 2018
Where Pernerinsel in Hallein, Salzburg, Austria, Germany
Since 2003, every year, an abandoned industrial salt refinery on an island in Hallein, Austria, opens up, for ten days, to host around 300 Smiths and their ideas. We physically gather in order to get inspired, network, create, present and share. Schmiede provides a basic cooperative prototyping environment and an infrastructure full of impulses and passionate people.
For all details and application see:http://schmiede.ca/apply
Application closes: May 31st
(but i heard from an inside source that it will actually be open till June 5)
Typically a good chance to meet some fellow patchers. Highly recommended!
Who id144, maarja
When Fri, Jun 1st 2018 - 17:00 until Fri, Jun 1st 2018 - 21:00
Where Platform Theatre, Handyside St, N1C 4AA , United Kingdom
I am pleased to invite you to the opening of our new VR project Camouflage at Platform Theatre in London, on Friday 1 June.
Me and Andrej teamed up with former Rambert choreographers Renaud Wiser and Patricia Okenwa to create a world of mixed reality, illusion and power games in a unique celebration of dance, music and virtual reality.
The evening features Camouflage - our new mixed reality game which playfully explores the ways digital technologies enrich and/or suppress our senses. After an interactive VR experience, where the audience can be at the centre of the action, there will be also two new creations of live dance delicately crafted by Renaud and Patricia and performed by an extraordinary cast of international dance artists.
Hope to see you there
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