VJ Spain Guest Tutorial 2: El plugin Step Sequencer + Ableton Live

nce again in the lead up to his VJ Spain workshop later this month we are joined by guest poster Marcos Prack with another Spanish language tutorial: "Segundo tutorial de VDMX, esta vez os cuento una forma de utilizar el plugin Step Sequencer, que es usarlo para disparar los clips del Media Bin a través de diferentes presets. Todo esto utilizando Ableton Live que a través de notas MIDI activa Presets, FX y dispara los clips."

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VJ Spain Guest Tutorial: El plugin Control Surface

his special Spanish language guest tutorial on using the 'Control Surface' plugin comes from Marcos Prack of VJ Spain who joins us with a preview of his upcoming 4 day workshop on using VDMX and Quartz Composer in Madrid this April.

More information about the course can be found on the VJ Spain website: http://vjspain.com/blog/2013/03/20/workshop-quartz-composer-vdmx-integracion-y-flujo-de-trabajo/

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Setting up Media Bin Sync with TouchOSC

One of the first and most popular apps on iOS for remotely controlling the visuals running on your Mac is TouchOSC from Hexler which allows for customizing which controls are accessible from your iPhone, iPad, or iPod Touch, and configure their layout. In this tutorial we look at the 'Sync UI' option in the Media Bin for updating the display of buttons and button grids in TouchOSC as movies are triggered in VDMX.

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The Quartz Composer Interaction object and VDMX Preview Windows

One of the newer features added to Quartz Composer is a new 'Interaction' object which allows for mouse clicks in the QC Viewer, as well as Preview Window plugins within VDMX, to be detected when billboard and sprites are clicked, making it possible to control patches in a variety of ways not possible with standard ​input splitters.

For this tutorial we'll first create a basic Quartz Composer composition that makes use of the 'Interaction' object ​and then import it into VDMX where it can be manipulated directly from a Preview Window plugin.

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Receiving MIDI SMPTE Time Code (MTC) in VDMX

​MIDI Time Code (MTC) is a specification for sending SMPTE values from a master playback application such as QLab or Apple Logic to keep the play time of other real-time music and visuals software in sync over MIDI.​ While MTC has a few drawbacks it can be very useful when setting up live performances where VDMX is being used alongside audio software that can send it.

In this tutorial we'll look at how to receive MTC ​in VDMX in two ways: First, the classic example of syncing the time position of a QuickTime movie to the incoming timecode. In the second case instead of a traditional movie, a simple Quartz Composer patch will receive the MTC and render a real-time animated read out of the values in standard SMPTE format.

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Making and Installing GLSL Composition Modes for VDMX

​To get the best performance out of using the Hap codec within VDMX we also recently added another new feature making it possible to use GLSL shaders to perform composition between layers. While the standard 'OpenGL- Add' and 'OpenGL- Over' modes are the absolute fastest when it comes to rendering, when more complex composition modes such as 'Difference' or 'Multiply' are needed shaders are the best alternative when playing back movie files, particularly when you're not using CoreImage or Quartz Composer based FX on the layer.​

In this two part tutorial we'll look first at the basics of adding new 3rd party shaders to the assets folder, and then move on to the intermediate level step of creating new custom blend modes.​

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VDMX into Millumin via Syphon

In honor of being the first third party developer to support the new Hap codec family natively, today ​we're joined by by Phillipe Chaurand who writes Millumin, an awesome piece of real-time visual software with a focus on theater, dance, and mapping installations.

Along with Hap, Millumin also shares support for Syphon, which allows for ​making layers in VDMX directly available as inputs to Millumin. In this quick video tutorial Phillipe explains how to set up this connection between the two applications.

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Exporting Motion projects as Hap Alpha movies to use with VDMX

​While VDMX itself is an application for creating real-time visuals, eventually most VJs and other visual artists have some use for  other types of video software such as non-linear editors (iMovie, FCP, Premiere) or motion graphics generators (Motion, After Effects) to create pre-made footage to use during performance.​

In this tutorial we look at exporting movies from Apple Motion to use in VDMX and including the alpha channel by using the 'Hap Alpha' codec. The same basic idea can be used with other motion graphics software such as Adobe After Effects.​

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Converting movies to the Hap video codec

Hap is a new video codec for Mac OS X that performs image decompression on a computer's video card, substantially reducing the CPU usage necessary to play back a movie- this is useful in situations where CPU power is a limiting factor, such as when working with high resolution movies.

In this tutorial we'll look at when it is appropriate to use Hap encoded files and how to convert movie files using the free Vidvox batch exporter utility, or your other favorite QuickTime enabled applications.

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Valentines Day Starter Project

Getting ready for your Valentines Day gig?

Here's a quick starter project for VDMX that includes a simple particle generator Quartz Composer composition that rains down hearts over a live camera input or movie loops to add an extra bit of special something-something to the visuals.

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Chroma Key Basics

Chroma Keying is an image effects technique for compositing multiple video streams on top of each by applying a hue based masked to the foreground images. Commonly a blue or green screen is used in production for these purposes.

Within VDMX, using the 'Chroma Mask' FX on a layer will create a color-based mask that is applied within the FX-chain. Pixels in the input that are within the tolerance range are set to become transparent through the usage of alpha channels.

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