Five months after Nvidia announced its RTX graphics cards, we finally have a game that really shows off this new technology. Metro: Exodus is the first game to use the RTX cards to enable ray-traced global illumination. This is a lighting system that promises to get us closer to photorealistic light and shadows in the game. But how exactly does ray tracing work in Metro, and is it worth all the fuss? We take a close look at how RTX is implemented, but you'll have to decide for yourself whether it's worth a new graphics card.
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