Millumin 5.14.j Mac

Millumin is software for building audiovisual and interactive shows, from live performances and video mappings to theatre productions. It gives stage designers and video artists a timeline-based workspace to sequence media, trigger cues, and synchronize lights, sound, and projections from a single Mac.

The app connects with a growing list of devices and companion software over protocols like OSC, MIDI, DMX, and Syphon, so it fits into existing production setups without forcing a full overhaul. Contextual help opens inside the application, and a set of online tutorials is included for new users.

The version supplied in this package is 5.14.j, with English as the interface language. A more recent V5 build — dated April 29, 2025 — is listed on the developer's site, according to Anomes.

When the external screen stays black despite a running timeline

New users often hit a black output window the first time they press play. The timeline runs, but nothing shows on the external display. Nine times out of ten, the stage output is simply not assigned. Open Workspace > Output Setup, pick the correct display from the dropdown, and check that Fullscreen is enabled. If the screen still stays dark, confirm the display arrangement in macOS System Settings — Millumin sends to the screen coordinates macOS reports, and a mirrored setup can confuse it.

Another early headache is dropped frames during playback, especially with high-bitrate ProRes files. The fix is rarely about CPU power. Switch the affected media layer's decode setting from CPU to GPU in the media inspector, and make sure your footage lives on an SSD, not a spinning external drive over a slow USB hub.

MIDI and OSC control sometimes stop responding mid-session. The cue list still reacts to mouse clicks, but external faders and buttons go dead. In most cases, another application has grabbed the MIDI port or OSC address. Quit any DAW, lighting software, or TouchOSC instance, then reopen Millumin's Preferences > Interaction panel and reselect the device. For OSC, double-check that no two devices on the network share the same IP.

When a video layer refuses to loop despite the loop toggle being on, inspect the in and out points. Millumin respects trimmed ranges, and a clip trimmed to its last frame will appear frozen. Reset the in/out markers in the media inspector or drag them wider.

Skip the blank canvas by running the ten-minute cue tutorial

Before building a full show, run through the Help > Tutorials section inside the app. The first tutorial walks through a simple three-cue sequence — video, still, and black — and takes under ten minutes. Doing this once surfaces most interface quirks before any pressure is on.

Set up a clean folder structure early. Keep media on a dedicated drive with nothing else on it, and use a flat folder per project. Millumin references files by path, not by embedding them, so moving a folder later breaks every cue that pointed inside it. If you must reorganise, use the Media > Relink command before opening the project.

Map a hardware kill switch on day one. Assign a MIDI note or keyboard shortcut to a blackout cue that sits at the top of the cue list, and make it a Priority cue so it overrides everything. When an effect hangs or a projector overheats, one button kills all outputs instantly. Rehearse it until it is muscle memory.

Check the canvas resolution before importing any custom content. Millumin defaults to the resolution of the primary display, but many projection setups run at non-standard sizes. Set the canvas in Workspace > Canvas Size to match the final output, then import graphics. Resizing later stretches or crops everything already placed.

How Millumin fits with other apps and macOS features

Millumin talks to Ableton Live, QLab, Resolume, and most lighting consoles over MIDI and OSC, and it feeds video to MadMapper or Resolume via Syphon without extra drivers. A common touring setup uses Live to fire Millumin column cues over MIDI clock, keeping audio and video locked to the same beat grid. Set the MIDI input to IAC Driver in Millumin's preferences and route Live's MIDI out to the same virtual port.

On the macOS side, Mission Control and Hot Corners are best turned off on show machines. A stray gesture during a cue switch can pull the desktop over the fullscreen output, and the audience sees your dock. Disable both in System Settings and uncheck Displays have separate Spaces if you are using multiple outputs — Millumin handles its own fullscreen windows and does not need the extra abstraction layer.

The app works alongside Automator and Shortcuts for housekeeping. A Shortcut can quit every app except Millumin, set the system volume, and launch the project file, all from a single icon in the dock. Some stage managers trigger it via a Stream Deck button that sends a keyboard shortcut to macOS.

For content creation, After Effects and Blender are the most common pairings. Render animation loops from After Effects as ProRes 4444 with alpha, drop them into a Millumin layer set to Straight Alpha interpretation, and they composite over live camera feeds without pre-multiplied edge artifacts. Blender exports for videomapping work best as image sequences — Millumin loads numbered stills as a single clip and plays them back with far lower GPU overhead than a compressed movie file.

The software runs on Intel Macs and requires macOS 11 Big Sur or later.

• macOS 11 Big Sur or later
• Intel processor