Refraction is the phenomenon that makes light bend when passing through different transparent materials due to the velocity of light changing in different media. It makes objects behind the refractive material look distorted. Refraction is useful for simulating glass, gemstones, and many other transparent materials. Real-time refraction is available on all plans, including Basic - [learn how to use it on our Help Center](https://support.fab.com/s/article/Transparency-Opacity).

*Original model ‘[Mosquito in amber](https://sketchfab.com/models/53a61d58c09b4d2ab30e269aa3e22078)‘ published by Loïc Norgeot under a Creative Commons Attribution license.*