OmniCal is Disguise’s automated LED calibration system. When it works, it saves hours. When you don’t understand what it’s doing, it creates problems that are very hard to debug under show pressure. This guide covers the practical side — what to prepare, what to watch for, and what it won’t solve.
What OmniCal actually does
OmniCal uses a camera to capture the light output of your LED panels and generates a per-pixel correction map. It compensates for variations in brightness and colour across individual panels, cables, and tiles. The result is a visually uniform surface where the hardware alone would show seams and hotspots.
Preparation
The camera position is everything. Mount it on a stable stand at the geometric centre of the LED surface, perpendicular to the wall. Any angle introduces error that the algorithm cannot fully compensate for. Use the camera framing tool in Disguise before you start the capture sequence.
Ambient light kills calibration. Black out the room if you can. At minimum, kill all practical lighting pointed at the wall. Even indirect light from windows at the wrong time of day will skew your results.
What it won’t fix
OmniCal cannot compensate for dead pixels, failing drivers, or panels running on incompatible firmware versions. Physical faults are physical faults. Run a full panel test before you calibrate — not after.
Save your calibration files
Export and archive the calibration data after every run. If you have to strike and rebuild the wall, a saved calibration from the same panels will get you back to a known state in minutes rather than hours.