Equiluminant Shimmer: vermilion and teal stripes of equal lightness
Equiluminant Shimmer pairs a vermilion Background with teal stripes of almost exactly the same lightness, so the brightness-sensing part of vision can barely locate the edge between them. Twenty-four stripe pairs of equal width cross the short side of the frame, and a Twist distortion field at Spatial depth 60 swirls them around the center by roughly a quarter turn. On Flow the stripes drift through the swirl by one pair per 7.5-second loop, and their boundaries appear to jitter as they go.
Make it yours
Break the effect on purpose
The shimmer depends on equal lightness. Change the First color to a dark navy and the stripes turn crisp and stable at once, which shows that the vibration comes from matching brightness rather than from the hues themselves.
Thin the teal
Mark weight sets how much of each pair is teal. At 50 both colors share the width evenly; move it to 30 for narrow teal threads on vermilion, where the flicker gathers along fewer, sharper edges.
FAQ
Why do colors of equal lightness seem to vibrate?
Vision works out edges and motion largely from brightness differences, while hue travels along a separate path. When two colors match in lightness, the brightness signal has almost nothing to hold on to, so the border feels unstable and appears to shimmer or slide.
How it works
Choose a starting point
Start from one of 16 looks such as Riley Current, Cobalt Tunnel or Moiré Twins, or pick one of 8 pattern geometries, from Halftone and Checkerboard to Moiré and Weave.
Bend the pattern
Pick a Mark shape and a Distortion field such as Lens, Pinch, Fold or Twist, set Pattern density, Mark weight, Spatial depth, Wave distortion and Color separation, then drag the artwork to position it.
Loop it and use it
Press Play to run a seamless Flow, Breathe or Counterflow loop, set the two inks, Light color and Backlight, then sign in with a free UX Pilot account to use it on the canvas or export it.