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Now you don’t need a fancy digital camera to make light graffiti! Glow Doodle lets you write with light from the comfort of your own computer desk—all you need is a webcam and the free download for Mac or Windows that you can grab over at Glow Doodle.

“On most point-and-shoot cameras the setting to use looks like a little man standing in front of the moon, but webcams don’t have that setting. Until now,” ZoomDoggle says.

All you need is a source of light (whether it’s as fancy as a glow stick, or as simple as a mobile phone light) and you’re ready to Glow Doodle!

For more advanced glow photography, check out more light graffiti innovations below.