OSC and MIDI

Showmesh receives external control and sends control to other systems. OSC listens on UDP port 8000 by default. MIDI input and output are built into the Windows engine and open all detected ports.

OSC input

Address	Effect
/go	Fire the armed cue
/panic	Global PANIC
/stop	Stop all cues
/pause	Pause all cues
/resume	Resume paused cues
/cue/12/go	Fire cue number/ID 12
/cue/12/stop	Stop cue 12
/cue/12/pause	Pause cue 12
/cue/12/resume	Resume cue 12
/cue/12/load	Load cue 12

Numeric resource parameters use addresses such as:

/resource/res-video/opacity  0.5
/resource/res-video/volume   0.8
/resource/res-video/pan     -0.25

MIDI Learn for GO and PANIC

Open Control I/O → MIDI. A green health dot and device list confirm input; the monitor shows incoming events.

1. In the Transport card, click Learn beside GO or PANIC.
2. Press the desired controller button.
3. Test it with the exact controller and USB/MIDI route used in the show.

The learned mapping is global: it does not target a particular cue. MIDI Show Control GO, STOP, RESUME, and LOAD are also understood.

Reactive action triggers

OSC and MIDI CC action triggers listen while their owning cue is playing.

• A Set action can follow an OSC numeric argument.
• MIDI Set maps CC 0…127 to the parameter range.
• MIDI Transition fires at value 64 or higher.
• Reactive actions can re-fire during the same cue run.

OSC cue

An OSC cue sends a message or value fade to a saved OSC connection. Configure host, port, address, arguments, duration, start/end values, curve, and pre-wait in the cue inspector.

MIDI cue

A MIDI cue sends to a chosen output device:

• note on/off, with an optional hold time;
• control change;
• program change;
• MIDI Show Control command and cue number.

OSC and MIDI cues are ordinary list cues and can fire from GO, Auto-continue/follow, timecode, or another trigger.