Using LUT FX in VDMX

One of the common types of image filters that are found in the workflow for photo and video editing are LUTs, also know as "Look Up Table" based FX. LUT FX are used to change the color palette of an image to create a different stylized look or feel, or in some cases to mimic the look of different print film types.

In this video tutorial we'll be looking at how to use each of the three different ways to use LUT FX in VDMX and how to add your own ".cube" LUT files.

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Using VDMX as a Syphon Mixer

One of the best things about being a VJ on the Mac these days is Syphon which makes it possible for all of the different tools that are available to work together in countless ways. Within VDMX it is possible to have as many Syphon inputs and outputs as your computer can handle, which allows for it to be used as a source, mixer, FX processor or final output for other software you may want to work with.

In this video tutorial we'll look at a simple use case for connecting several Syphon enabled applications to and from VDMX by creating a two channel mixer that fades between two Syphon sources and publishes back out for other applications to use.

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

​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.

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Creating Video Feedback Loops on a Mac with VDMX

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.

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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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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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