DLSS 4.5: Nvidia improves Ray Reconstruction for raytracing games
Nvidia's Ray Reconstruction model for DLSS 4.5 is coming in August and improves graphics in raytracing games like “Cyberpunk 2077” – at request of many users.
In "Alan Wake 2", Ray Reconstruction can reconstruct more details – in this case, noise patterns on televisions.
(Image: Nvidia)
Nvidia announced an improved Ray Reconstruction model for DLSS 4.5 at Computex, which will be released in August for all GeForce RTX graphics cards. Games with demanding ray tracing and path tracing will benefit from this, including “Cyberpunk 2077,” “Star Wars Outlaws,” and “Alan Wake 2.”
Ray Reconstruction is an AI denoiser for games with intensive ray tracing. When ray tracing or path tracing is enabled, the graphics card calculates light and shadows by tracing individual light rays. Since the card cannot sample every pixel completely, the image initially remains noisy. Denoisers smooth out this noise with manually optimized algorithms, which often soften details or produce image artifacts. Ray Reconstruction replaces these algorithms with an AI model that analyzes spatial and temporal image data from the game engine and reconstructs missing pixels more reliably than other approaches. The result is a sharper, more stable image with more precise lighting.
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Technical showcase games benefit
Ray reconstruction also includes its own upscaling component. When Nvidia upgraded the upscaling model to DLSS 4.5 earlier this year with a new transformer approach and improved image quality in games without raytracing, Ray Reconstruction initially remained on the sidelines. Players of raytracing games currently have to choose between the improved upscaling of DLSS 4.5 on the one hand and Ray Reconstruction on the other.
Because ray reconstruction is practically indispensable for games with intensive ray tracing, the advantages of DLSS 4.5 have so far been absent in practice, precisely in the technical showcase games. A new Ray Reconstruction model was therefore high on the wish list of owners of Nvidia graphics cards.
The new Ray Reconstruction model is scheduled to be released in August for all RTX graphics cards, Nvidia writes in its company blog. According to Nvidia, the new model offers 35 percent more computing power with similar performance compared to the previous model. It is intended to anchor spatial awareness for scenes more deeply and evaluate engine data on movement and lighting better.
More snow, less image noise
In “Indiana Jones and the Great Circle,” the new model reduces streaks in snow and particle effects. In “Pragmata,” lighting reacts faster to laser effects and leaves fewer artifacts when the laser switches off. In “Alan Wake 2,” fine patterns on televisions in the game are displayed more stably and clearly. In general, games should be displayed with less noise using the new Ray Reconstruction model.
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At its launch in August, Ray Reconstruction 4.5 will be available in 27 games, including “Avatar: Frontiers of Pandora,” “Hogwarts Legacy,” “Half-Life 2 RTX,” and “DOOM: The Dark Ages.” The new Ray Reconstruction model can be manually adjusted via the Nvidia app from August, like the upscaling and frame generation components of DLSS.
(dahe)
