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PC Gamer
PC Gamer
Dave James

DLSS 4.5 Ray Reconstruction is a definite improvement but path traced fidelity is still not a 100% solved issue

Dancing man in Alan Wake 2 using different versions of Ray Reconstruction.

Nvidia's new DLSS 4.5 Ray Reconstruction feature is laser-focused on trying to fix the second most annoying thing about ray traced or path traced games: visual artifacting. Yes, the lighting effect does deliver the most accurate-looking lighting and shadows in games, but in motion there is a definite visual weirdness added into scenes. And that weirdness generally comes from the denoising pass designed to turn the low-fidelity path traced image, with its limited number of rays, into a fully realised frame.

Leave a game's viewport still and the scene will pretty rapidly come together to make a sharp, convincing image. Shift that around, or have that scene filled with moving objects or characters and you're going to see the sort of visual trails you might only have been used to in the warehouse parties of your early twenties. Just me?

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