The dots get smaller until the shirt takes over

A sand-coloured tee thrown across the seat of a car. On it, a 70s sunset: a big half sun in burnt orange and mustard, cut by thin stripes, sinking behind a jagged brown ridge, with LAST LIGHT arched over the top in fat rounded letters. Below the ridge the picture turns to dots, and the dots get smaller with every row until they stop.

Look for the bottom edge of that print. There isn't one. The picture just runs out of dots.

What is a halftone fade?

A gradient built from dots that get steadily smaller, row by row, until they disappear into the bare shirt.

It's the same mechanism as any halftone — dot size standing in for tone — pointed at the edge of the design instead of at a photograph. At the top of the fade the dots are big enough to touch and the colour is solid; further down they shrink and separate; at the end there's nothing but cloth. The eye reads it as the image dissolving, like a sunset dropping below a horizon or a photo fading into mist.

Why does a fade matter on a shirt?

Because every print has to end somewhere, and the easy way to end it looks cheap.

A design that stops at a hard rectangle reads as a picture pinned onto a garment — the edge of the box is the seam where a poster became a shirt. A design with its own outline, like a figure or a word, avoids that. But a scene has no outline: a sunset, a landscape, a sky would end at a straight line if nothing stopped it. The halftone fade is the answer. It lets a scene end without a border, handing the image back to the shirt a little at a time.

Where does the 70s look come from?

From souvenir shirts, surf shops and roadside gift stands, where the halftone fade was the house style.

Sunsets over mountains, palm trees against striped skies, a place name in rounded display letters across the top: those shirts used fades constantly, partly because they printed well and partly because they looked like the light they were describing. The stripes through the sun, the warm oranges and browns and the dots fading into the fabric are now read as a single thing — 1970s, holiday, somewhere warm.

Does a fade only work at the bottom?

No — it can go in any direction, and each direction says something different.

Fading downward reads as a horizon, the ground dissolving under a sky. Fading outward from the centre reads as a glow, or a spotlight, or a vignette on an old photo. Fading upward reads as heat or smoke rising. A photograph can fade on all four sides, which is how a snapshot becomes a print without its rectangle. The rule of the fade is only that it ends in bare cloth.

Can I put a real place name or landmark on it?

A place name is free to use. A resort's logo or a park's official emblem belongs to somebody.

The name of a town, a beach, a mountain or a road is a word anyone can print. The official logo of a national park, a hotel chain or a theme park is a mark, and it usually needs permission. The invented version is often better anyway: the name of the campsite your family actually went to, the beach nobody else has heard of, the year you were there. That's a souvenir from somewhere real that no gift shop sold.

Isn't a fade just a gradient?

A soft digital gradient and a halftone fade look similar on a screen and behave very differently on cloth.

A smooth gradient asks the print to lay down every shade between a colour and nothing, and those pale middle tones tend to go grey and patchy on fabric. A halftone fade never asks for a pale shade: every dot is full-strength colour, and only the size of the dots changes. From a step back the two look the same. On a shirt, only one of them stays crisp.

Does it print well?

Yes — it's one of the best-behaved ways to carry a gradient on cloth, which is why the souvenir shops used it.

The smallest dots at the tail of the fade are the ones to watch: if they're finer than the weave they fill in rather than vanish. Sized sensibly, the fade ends cleanly. Three or four warm inks — a burnt orange, a mustard, a dark brown — on a sand, cream or natural shirt is the classic 70s set; a single colour fading on black works just as well, with the dots as the light.

How do I get one made?

Describe the scene at JustOG — the sunset, the place, the words across the top, and which way the halftone fades out. Pick a direction, drag the crop frame, see it composited on the real garment, and it's made to order and shipped.

Designs other people have published are in the shop.

The sun goes down behind the ridge, the dots go down with it, and the rest is shirt.