Doctor Strange definitely needs this NERF blaster – a gun that generates animated spells out of thin air. This truly is wizardry. This cool hack comes from a Japanese cosplayer, and it is able to achieve the effect by using a spinning LED wand. So even though wizards don’t need guns, now wizard guns are a thing.
The seemingly floating images are created using an effect called persistence of vision. This basically means that the human eye holds onto images for a split second longer than light rays are actually hitting the retina. This is what allows us to interpret the images flashing across the pixels on a screen as moving video, instead of just a slideshow. It’s a really slick effect.
At the end of this customized NERF blaster is a 3D-printed adapter holding a Phantom 3D LED wand. As the wand spins, the LEDs along its length flash in specifically-timed patterns to fool the human eye into seeing 360-degree animations. Make sure you check out the end of the video, where the modder reveals some of the software they used to create the animated spells.
Sadly there’s no way to download those spells so you will have to consult a spellbook.