Syncing the playback of multiple movies in VDMX over a network using OSC

June 25, 2013

One of the data-sources available within VDMX for controlling playback, FX, and composition parameters, is the current playhead position of each movie playing on a layer. Like an LFO or audio analysis value, you can assign this to any slider, button, or other UI item by using the UI Inspector or from the right-click contextual menu.

In this tutorial the movie “normalized time” parameter (time as a percentage, ranged 0.0 to 1.0) will specifically be used to synchronize the playback of multiple movie files – this can be a useful technique for working with batches of clips that have the same duration, and high-end projects that involve powering more displays or projectors than can be connected a single Mac.

Making custom face tracking video FX and data-sources for VDMX with Quartz Composer

June 13, 2013

For this quick technique tutorial we've made two basic Quartz Composer compositions using the “Detection” object that can be loaded into VDMX to perform basic face capture and replacement FX that can be connected in a variety of ways. You can also use these example patches as starting points for your own patches that perform more complex behaviors like tracking multiple faces within a single frame or publishing additional control information.

Creating Gesture Based Controls for VDMX using the Gestrument Kinect MIDI controller app

June 11, 2013

Last week featured on CreateDigitalMusic we noticed the beta release of Gestrument Kinect, a simple Mac app that can be used to convert the camera depth data from a Kinect to MIDI for controlling music and VJ live visuals. Since it sends of standard MIDI, it only took a few seconds to connect it to VDMX for a quick demonstration on how it's data can be converted into gestures used to trigger movie clips and adjust video FX parameters.

DJ Mixer EQ Style Masking FX for VDMX (with bonus X-Session Pro template)

May 30, 2013

In this technique tutorial we'll focus on two different ways the idea of a DJ style low, mid, high EQ control can be interpreted in the world of video as FX in VDMX as a means to mask out or adjust the gain level on separate discrete parts of a video stream for the purposes of blending video layers together.

The first example exchanges the low, mid and high levels for the individual RGB channels of the image for raising or lowering the intensity of each independently. The second qcFX uses a similar concept to a 3-band equalizer, breaking down the image into three different sections based on the luma (brightness) level of each pixel instead of its frequency ranges.

Remixing Seamless 360 Degree Panoramic Movies Shot with the Kōgeto Dot in VDMX

May 24, 2013

As part of our series on different techniques for VJs and visual artists to create their own content for performances and installations, today we are featuring the “Dot” camera attachment from Kogeto which lets you easily shoot panoramic video from an iPhone that can be loaded into a VDMX for real-time cropping and panning for adjusting the point of view as the movie plays back or is remixed during a live performance.

In this video tutorial we'll look at some tips for working with movie clips shot using the Dot in VDMX, including setting up seamless 360 rotational loops, syncing the POV angle to the movie time, and how to fade between two different panorama clips.

Guest Tutorial with Roger Sodré: Connecting VDMX and Blendy VJ by Syphon

May 22, 2013

Today we are joined by Roger Sodré, creator of Blendy VJ which is an advanced tool for working with multiple projectors in situations where there is an overlap that needs to be smoothly blended to appear as a single continuous output. In this guest tutorial Roger demonstrates how to set up VDMX to send video over Syphon to Blendy where it is split into two separate signals that then have a soft edge blend applied over the section that will overlap when projected.

Bar graph visualizations with Quartz Composer and VDMX

May 18, 2013

Among the many uses of Quartz Composer, and perhaps one that is often overlooked, is the ability to make visualizations of data and other information. Since the compositions are rendered in realtime, when creating them for this purpose it can be helpful to make the patches reusable with published input values for use in other environments, or replicating within QC itself.

In this two part video tutorial we'll first create a composition in Quartz Composer that renders a simple bar graph data visualization with inputs for changing its labels and values that can be used in other applications. Once the patch is completed it can be loaded into VDMX and set up to respond to a variety of different inputs as a visualizer of tempo or audio levels as part of a VJ set, an on screen display of MIDI / DMX channels, or any other arbitrary data that you can get into your computer by OSC.

Three Different Ways to use Audio Analysis (or other data-source) to Trigger a Movie in VDMX

May 16, 2013

In this quick tutorial we'll be looking at how to use the Audio Analysis plugin instead of the typical keyboard MIDI, OSC, or DMX shortcuts for triggering video clips in a media bin. This can be a particularly useful technique for using VDMX to run interactive installations that respond to sound and other inputs, or for automating and beat syncing parts of a VJ setup.

Intro to Making Audio / Video Loops for DJs and VJs

May 9, 2013

For this A/V performance technique lesson we'll be taking a look at some of the introductory tools that are used by musicians and DJs to make music, followed by creating video loops from scratch. To top it off the two separate tracks will be combined into a single A/V movie file for use in VDMX or other VJ software for live remixing.

Making a customized version of 'Grid Pro' in VDMX

May 6, 2013

Building on the previous template and tutorial on recreating the classic VIDVOX Grid using VDMX, in this video walkthrough we'll show how to turn the basic triggering and scrubbing app to it's big brother Grid Pro, which added a number of powerful features like transitions for fading between clips, image FX processing, audio analysis, a text generator layer and direct to disk movie recording.

The 8 Layer APC40 VJ Mixer Template for VDMX

May 1, 2013

The Akai APC40 is one of the most known MIDI controllers designed to be used alongside Ableton Live for DJing and music production. It also happens to be a pretty good controller for working with video and in this tutorial we'll look at some tips for setting up an 8 layer setup with controls matched to the layout of the controller itself.

With this example template you can load in your own movie files and start mixing immediately, or further map the remaining knobs and buttons to your own selection of real-time video FX and other movie playback parameters.

Multi-display video mixing with VDMX on a Retina MacBook Pro

April 20, 2013

Along with being able to work with more layers at higher resolutions, faster computers and more powerful graphics cards make it possible to output to multiple projectors or monitors from a single machine. In particular, the new 15" Retina Macbook Pro features a combination of a fast SSD hard drive along with two Thunderbolt and one HDMI port making it possible for a VJ to power 2 or 3 different HD displays from a single Mac laptop.

In this video tutorial we'll walk through the basic steps of preparing VDMX projects with a double-wide and triple-wide design to output with separate source layers for each display.

Passing DMX Universes into Quartz Composer from VDMX

April 18, 2013

Along with being able to directly control any UI item in VDMX, such as sliders and buttons, with the value from a DMX channel, when using Quartz Composer compositions it is possible to pass in an entire DMX universe (512 channels) of data all at once as a list of DMX values (ranged 0-255). Once inside the patch, the control information can be parsed programmatically to control real-time visuals or virtual lighting elements inside the patch, or to pass back value into VDMX by published outputs as control data.

Making Custom Quartz Composer Text Players for VDMX

April 16, 2013

Text layers are similar to other video generators in VDMX, with a few additional UI items for working with strings of words and letters. Behind the scenes, special Quartz Composer compositions are used to render the text as video and it's easy to create your own.

Creating Video Feedback Loops on a Mac with VDMX

April 14, 2013

One of the most powerful techniques used to create real-time visuals and computer graphics going back to the early days of video is the use of feedback loops - the method of taking the current output and using it as a source frame in part of the next rendered frame. This incredibly useful process is particularly useful for Mac VJs and other graphic artists looking to find a unique look or style for their visuals, and is easily simulated within VDMX by using layer groups.

Two Channel Video Mixer template for Livid OhmRGB Slim

April 11, 2013

The OhmRGB is a hardware MIDI controller from Livid Instruments for DJs and VJs with a nice mix of faders, knobs and buttons for triggering clips or FX. It's an especially useful controller to use with VDMX because it has a versatile layout which can be adapted for a variety of different setups ranging from simple DJ style two channel video mixers to advanced multiple layer compositions.

VJ Spain Guest Tutorial Part 3 - Usando Quartz Composer en VDMX

April 10, 2013

Today we are once again joined by guest poster Marcos Prack with part three of his series of Spanish video tutorials for a lesson on using Quartz Composer iterators and using compositions inside of VDMX: "En este tutorial os muestro como crear una composición en Quartz Composer y publicar parámetros que controlaremos luego en VDMX."

Auto loading media from a Dropbox folder to VDMX.

April 8, 2013

In this video tutorial we'll look at using the popular file sharing service 'Dropbox' to transfer images from an iPhone to a Mac, and then have those images automatically loaded into VDMX where they can be triggered and remixed. This same basic idea can be used with any folder on disk, whether the media files are manually moved, copied over a network, or downloaded over the Internet.

The Quartz Composer Interaction object and VDMX Preview Windows

March 12, 2013

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.

Making and Installing GLSL Composition Modes for VDMX

March 6, 2013

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.