"Consisting of a grid made up of green lines, the illusion looks completely wild at first glance, with lines bending and spouting off in all directions. And that illusion persists whilst staring at the image - but it's only the lines in your peripheral vision that are out of control. The lines you manage to focus on are surprisingly straight, which gives the slow realisation that the whole grid is actually made up of straight lines."
"People are seriously impressed with this illusion. "Oh wow this one's really cool. The lines go crazy in all sorts of directions when I look away from them but immediately straighten out when I focus on them," one enthusiast says. Another says: "This ones wild, the bits in my peripheral vision almost turn into brambles, pointing in different directions and intertwining. Feel like I've seen this 100 times before but never as intense as this version.""
An optical grid of green lines appears wildly warped at first glance, with many lines seeming to bend and spout in different directions. When the viewer focuses on specific lines, those lines appear surprisingly straight, revealing that the entire grid consists of straight lines. The illusion arises from the grey-and-white background texture behind the grid, which confuses the brain and fills in visual blanks, causing peripheral segments to appear distorted. Viewers report intense peripheral bramble-like distortions, headaches, and motion-sickness-like sensations from prolonged staring. The effect demonstrates how peripheral context and background texture strongly influence perceived line orientation.
Read at Creative Bloq
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