It’s easy to fall into a false sense of security when we view content in the cosy confines of our laptops. An animator shares a link, the colours are vibrant, the lines are crisp, the movement is flawless and you think “Great, job done, right?”
Not quite.
When you’re producing for large scale, custom LED environments, the true test only happens onsite.
The moment your media steps out of the viewport, it’s at the mercy of variables you can’t simulate in an edit suite: unforgiving codecs, unexpected scenic angles, and strange distorting artefacts. In an instant, your polished, beautifully filenamed asset package turns into a collection of non-starters, and it feels like you’re back at square one.
The physical mismatch
At a recent event, our LED canvas was framed by a custom, angled scenic surround. To seamlessly blend pixels with the physical architecture, we designed animated lines that extended out from the content and aligned directly with the surrounding frame.
Production went smoothly, and we used the angle supplied in the CAD drawings to build out an entire suite of assets.
On the first morning of technical rehearsals, we fired up the display and immediately saw the problem: the physical set had been built at a slightly different angle. What was likely a minor variance in the build translated on screen to a very significant misalignment where the digital lines met the physical border.
We scratched our heads, desperately trying to find a solution that didn’t require the re-rendering of over 90 assets, but the physical structure wasn’t moving, so the content had to adapt.
To guarantee absolute precision, we measured the set’s true angle onsite using a digital level, then pushed a diagnostic test grid with varying angle lines directly onto the LED wall to visually lock in the exact degree.
12 hours later, we had a suite of new assets, ingested and ready to go.
Although we delivered successfully in the end, situations like this highlight the importance of ensuring teams are in close communication with each other. In this instance, ensuring production understood how tightly our content relied on the angle specified in the CAD drawing. It also emphasises the importance of preparation, a priority test list and quick check test images were crucial here in expediting a solution.
Invisible problems
Large-scale LED walls have a habit of exposing problems you never knew were there. What looks perfectly clean on a laptop can behave very differently once it’s stretched across 15 metres of LED. Smooth gradients break into ugly bands. Fine lines lose their definition. Bold colours become painfully intense. And movement that feels calm and ambient on a laptop can suddenly feel like you’re onboard a fast moving rollercoaster.
The banding and grain balancing act
Colour banding is easily one of the most persistent onsite demons. When an LED wall or playback codec lacks the colour depth to render subtle gradients, like soft backdrops, or deep gradients, it gives up on the smooth curve and jumps to the nearest solid shade. The result? Ugly, striped lines across the screen.
Motion designers will often add a layer of noise or grain to artificially blend those transitions together. It works remarkably well, but it’s a delicate balance to get right onsite. Too little grain and the banding still cuts straight through. Too much and your beautifully polished, Apple-esque content starts looking like it was shot in the 1960s.
If you’re anticipating these issues, being armed with a few variations of the same asset (with and without grain for example) before heading onsite is a great way to speed up the testing process.
Speed deception
Motion is another one that can catch you out. The speed of an animation is surprisingly difficult to judge on a laptop. A slow, barely perceptible movement across a 13 inch screen can feel dramatically faster when that same movement is stretched across a 15 metre LED wall. What felt like a gentle atmospheric sweep suddenly becomes a giant, swirling whirlpool occupying your entire field of vision.
If you’re creating ambient, motion content for large scale LEDs and it looks like the right speed on your laptop, try reducing it by another 20%. Again, being armed with a few different speed variations of the same asset is a quickfire way of determining which works best in one testing window.
Defining fine
Line work and intricate vector details are notoriously fragile when transitioning from a monitor to an LED wall. What appears as an ultra sharp, one pixel line on a laptop relies on a dense pixel grid that LED panels can’t match. Instead of rendering razor sharp detail, the LED spreads that stroke across neighboring physical pixels, turning crisp graphics into a fuzzy blur, or causing them to vanish entirely once viewed from the back of the room. If an element doesn’t have sufficient pixel weight and visual contrast, the LED will wash it out.
A line-weight test can be really useful in defining the thickness required to match the screen’s physical pixel pitch.
Building for the inevitable pivot
Working in experiential requires us to think and create beyond the viewport. External variables will always present a challenge, making adequate time for technical rehearsals, testing and troubleshooting essential.
When venue restrictions and client rehearsals squeeze your time with hardware, preparation becomes paramount. Having a range of assets, approaches and contingencies at your disposal allows you to diagnose issues quickly and find solutions without losing momentum.
That’s not to say something completely left field won’t still fly in, it absolutely will. The key is ensuring you have the resources, headspace and time to respond when those unprecedented changes inevitably arise. Flexibility isn’t just useful, it should be part of the process from the onset.
Behind the piece
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