Another day, another optical illusion. The internet can't get enough of mind benders and/or bogglers, and new examples go wild on social media every other day. But here's one of the most impressive we've seen recently.
A new 3D-printed illusion creates the effect of a ball defying gravity by sliding uphill on its own accord. This, of course, isn't exactly what's happening – but it's so realistic that YouTubers can't quite believe what they're watching. It's definitely up there with the best optical illusions we've seen.
But like all things in life, it's all a matter of perspective. The video by StruckDuck reveals that the 3D-printed model needs to be viewed at exactly the right angle to create the illusion. The 'slide' is in fact flat, and snakes away from the top of the 'stairs' when viewed from above.
"That is PERFECTLY lined up illusion," one YouTuber comments, while another adds, "I really enjoy that this is an actual optical illusion, unlike 'Find the hidden ___ in the group of _____.' Those are Where's Waldo's – not optical illusions."
And if you love this illusion, you can create your own. StuckDruck is selling the STL files via Cults, so you can 3D print it yourself. From rotating horses to faces hiding in paintings, we've seen all manner of baffling illusions lately. Want to create your own? Check out our guide on how to download Photoshop.