Nvidia DLSS 4.5 Ray Reconstruction is out now, improving shadows and lighting accuracy

Nvidia released DLSS 4.5 Ray Reconstruction on August 25th, targeting better shadow quality and more accurate lighting in ray-traced and path-traced games. The update is available now, with specific game integrations arriving in September.

Senior product marketing manager Ike Nnoli described the new version at a pre-Gamescom press briefing, saying it builds on the Super Resolution second-generation Transformer architecture first introduced in DLSS 4. That model brings deeper spatial awareness and additional developer controls, translating to better lighting accuracy, improved responsiveness, and clearer motion in ray-traced scenes. The AI denoiser underneath it all is also more efficient and has more compute behind it, so scene reconstruction should be faster. Nvidia demonstrated the improvement using a shot from Alan Wake 2 — a window shutter casting a shadow, light bouncing off some trash bags — and the difference was visible: the shadow was sharper, and the light on the bags made the surface ripples more distinct.

DLSS 4.5 Ray Reconstruction arrives with path tracing support in two upcoming titles: IO Interactive's Bond game 007: First Light on September 15th, and Control Resonant on September 24th. Both lean toward realistic art styles, which makes them reasonable showcases for more precise shadow and lighting detail without the risk of overwriting their original look. The tech sits firmly in the older machine-learning camp rather than the generative AI territory Nvidia drew criticism for with DLSS 5's face-altering filter shown earlier this year on Resident Evil Requiem.

For players with hardware capable of running ray or path tracing on new releases, this is a straightforward quality-of-life improvement — the kind of incremental visual polish Nvidia has historically been praised for. Whether the broader community engages with it will likely depend on how well 007: First Light and Control Resonant land when they release next month.