91av

Illusions contest: Non-glossy gloss

By Sandrine Ceurstemont

14 May 2010

Video: Matt or glossy?

91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Matt, gloss or both?

(Image: Maarten Wijntjes & Sylvia Pont)

When photographic prints are given a matt or glossy finish, it’s all down to the photo paper’s reflectance. But now and Sylvia Pont from in the Netherlands have managed to make a digital image look glossy without changing its reflectance.. They used an image from the computer model of a fractal that had a matt finish. When the depth value in the model was changed, as well as the direction of light hitting it, the 2D surface looked like it had a glossy finish.

“A possible explanation is that highlights are created where you would normally expect them to be if the surface was glossy,” says Wijntjes.

See more: Don’t believe your eyes: This year’s best illusions

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with 91av events and special offers.

Sign up
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop