"We brought in all the hi-res models, and then it's on par with what you saw in the cutscenes," Druckmann said, speaking about the upcoming PS4 release with EDGE. "There's an improved lighting model. After that, we started looking across the board; enemies look a little blurry up close, so that was pretty easy. We ramped those up and saw a pretty significant difference.
"Our cinematics are now running at 1080p and 60fps, and that involved rendering them all from scratch," he continued. "It's interesting that now [instead of a technical bottleneck], the bottleneck is 'Can we fit all this on the disc?'"
Druckmann also suggested that Naughty Dog may look to take advantage of the features of the DualShock 4, adding that he wants to "give the option to switch which triggers you use to shoot and which ones you're using to listen and crouch.
"Then there are some ideas of how to use the touchpad that we'll play with and see if it's worth it," he added. "Mostly we don't want to mess with the experience too much, and we don't want to deviate from what made The Last of Us so great."