Lagoon
An atoll from above: sand ring, shallows, the reef wall
An atoll from above: a sand ring around a pale turquoise lagoon, dropping to deep blue outside the reef. Depth does the colouring the way light actually dies in water, so the shallows read as sand seen through cyan and the open sea keeps only blue. Surf stacks against the reef and coral mottles the floor.
Rendering cost: medium. A few dozen samples per pixel: comfortable fullscreen on a discrete GPU, but cap the pixel ratio for a retina hero. How to tune it
Tune Lagoon free. Take it when you are ready.
The background itself, with your settings already saved in, ready to drop into your site — this one and the other 60. Paid once, no subscription, and every background added later is included. What you get.
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