With the next console the dream is to show how dramatically different the audio experience can be when we apply significant amounts of hardware horsepower to it.” “As a gamer,” he says, “it's been a little bit of a frustration that audio did not change too much between PlayStation 3 and PlayStation 4. The AMD chip also includes a custom unit for 3D audio that Cerny thinks will redefine what sound can do in a videogame. “It's all the same thing as taking a ray through the environment.” “If you wanted to run tests to see if the player can hear certain audio sources or if the enemies can hear the players’ footsteps, ray tracing is useful for that,” he says. According to Cerny, the applications go beyond graphic implications. Because it mimics the way light bounces from object to object in a scene, reflective surfaces and refractions through glass or liquid can be rendered much more accurately, even in real time, leading to heightened realism. Ray tracing’s immediate benefits are largely visual.
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