"To render the image" means to create or produce a visual representation of something, usually through the use of technology or artistic techniques. Full definition
In addition to this, a new rumor has just surfaced with what could be the first rendered image of the 2017 flagship killer — and it's indeed the ultimate flagship killer. (nashvillechatterclass.com)
Surprisingly, the phone takes a couple of seconds to render images in gallery. (techtree.com)
Even worse, the included Gallery app didn't render the images properly. (pcworld.com)