{"rewrite":{"id":"r_6b684878c68bddd3f1d6b300","clusterId":"c_2b6c267af4b01d10c793e10d","slug":"nvidia-s-dlss-4-5-ray-reconstruction-refines-light-and-shadows","model":"deepseek-v4-flash","headline":"NVIDIA's DLSS 4.5 Ray Reconstruction Refines Light and Shadows","summary":"NVIDIA is updating its Ray Reconstruction technology with a second-generation Transformer model as part of DLSS 4.5, scheduled to roll out on GeForce RTX GPUs from the 20 series through the 50 series in August 2026. The new model, introduced alongside the gamescom 2026 announcements, is trained on a larger dataset and uses 35% more computational power while processing 20% more parameters. It gives developers finer control over temporal accumulation, which determines how much information from past frames is kept. Automaton's hands-on testing with a GeForce RTX 5070 Ti found that afterimages from path-traced light sources, like the lasers in Capcom's PRAGMATA, now disappear more quickly and naturally. Game Spark, using a GeForce RTX 5090, verified similar results in PRAGMATA and Biohazard Requiem, noting clearer raindrop outlines and more stable reflections on glass surfaces. NVIDIA materials state the performance impact is nearly negligible on RTX 40/50 series, though slight differences may occur on 20/30 series due to architectural constraints. The update also works with RTX Remix and arrives in the NVIDIA App via DLSS Override.","whyItMatters":"The DLSS 4.5 Ray Reconstruction update targets the visual inconsistencies of ray tracing that were previously accepted as unavoidable, aiming to improve how light fades and details hold without requiring new hardware.","webCardHtml":"\u003cp\u003eNVIDIA detailed the update during its gamescom 2026 briefing in Cologne, Germany, on August 26, 2026. The presentation also covered RTX Spark, NVIDIA ACE, and new GeForce NOW features, but DLSS 4.5 Ray Reconstruction was the centerpiece.\u003c/p\u003e\u003cp\u003eThe second-generation Transformer model is the first DLSS 4.5 feature to reach Ray Reconstruction. NVIDIA points to specific comparison titles beyond the tested ones: ghosting in snow particles in \u003cem\u003eIndiana Jones and the Great Circle\u003c/em\u003e is reduced, and the fine white noise lines on a TV in \u003cem\u003eAlan Wake 2\u003c/em\u003e hold more clearly and stably. NVIDIA also cites reduced \u0026#34;boiling,\u0026#34; where fine surface patterns fluctuate frame by frame, on flat walls.\u003c/p\u003e\u003cp\u003eUpcoming supported titles include \u003cem\u003e007 First Light\u003c/em\u003e on September 15 and \u003cem\u003eCONTROL Resonant\u003c/em\u003e on September 24, both with path tracing. The Streamline SDK and an Unreal Engine plugin are already available. A bundle campaign pairing CONTROL Resonant with GeForce RTX 5070 or higher GPUs begins August 25.\u003c/p\u003e\u003cp\u003eRTX Remix also gets DLSS 4.5 Ray Reconstruction support. NVIDIA says RTX Remix covers over 240 titles, with new projects announced: \u003cem\u003ePainkiller RTX Edition\u003c/em\u003e, a free mod for GOG owners of the 2004 FPS with a demo on August 25, and \u003cem\u003eMorrowind RTX\u003c/em\u003e, which so far has three RTX-compatible locations (Seyda Neen, Balmora, Mages Guild).\u003c/p\u003e\u003cp\u003eGeForce NOW Ultimate members get DLSS 4.5 in hundreds of games starting in September, with new settings for Super Resolution, Dynamic Frame Generation, and Ray Reconstruction, plus GOG single sign-on. GeForce NOW also adds Steam Machine, Steam Controller, Firefox, and Fire TV Stick 4K Select support.\u003c/p\u003e","blueskyPost":"NVIDIA's DLSS 4.5 Ray Reconstruction cuts afterimage persistence, but the real cost is compute: 35% more power for 20% more parameters. On RTX 20/30 series, that trade-off may surface as slight performance differences.","twitterPost":"DLSS 4.5's Ray Reconstruction trades 35% more compute for faster light decay, a cost NVIDIA says is negligible on RTX 40/50 but visible on 20/30.","threadsPost":"NVIDIA's DLSS 4.5 Ray Reconstruction makes light sources like Pragmata's lasers fade faster, a visible refinement. The trade-off: 35% more compute for 20% more parameters. NVIDIA calls the impact negligible on RTX 40/50, but admits slight differences on 20/30 series.","newsletterBlurb":"NVIDIA's DLSS 4.5 Ray Reconstruction update aims to clean up the small visual artifacts of ray tracing, from lingering laser afterimages to shimmering surfaces. Early tests show light now fades more naturally and fine details hold better. The update arrives on GeForce RTX 20 series and newer in August.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/022/G002210/20260824033/\",\"title\":\"DLSS 4.5 Ray Reconstruction Gets a Boost. NVIDIA Reveals Latest GeForce News Including RTX Spark and AI Technology \\\"NVIDIA ACE\\\"\"},{\"source\":\"Automaton\",\"url\":\"https://automaton-media.com/articles/reportjp/dlss45-20260826-463144/\",\"title\":\"Hands-on with NVIDIA DLSS 4.5 Ray Reconstruction: A new model that reduces the 'blurriness' of ray tracing and path tracing and enhances the 'freshness' of game visuals\"},{\"source\":\"Game Spark\",\"url\":\"http://www.gamespark.jp/article/2026/08/26/171224.html\",\"title\":\"NVIDIA \\\"DLSS 4.5 Ray Reconstruction\\\" Changes Even How Light Fades: Early Verification in Pragmata and Biohazard Requiem\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":18023,"outputTokens":1652,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787864027,"createdAt":"2026-08-27T20:37:32.000Z","publishedAt":"2026-08-27T20:41:45.000Z","updatedAt":"2026-08-27T20:37:32.000Z"},"cluster":{"id":"c_2b6c267af4b01d10c793e10d","canonicalTitle":"NVIDIA「DLSS 4.5 レイ再構成」は光の“消え方”まで変わる！『プラグマタ』『バイオハザード レクイエム』で先行検証","representativeArticleId":"a_65c8fbc33dae4c689965b7eb","sourceCount":3,"writtenSourceCount":3,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Pragmata\",\"Resident Evil Requiem\"],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-25T15:30:04.000Z","lastSeenAt":"2026-08-26T09:50:40.000Z","updatedAt":"2026-08-27T20:41:48.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/022/G002210/20260824033/","title":"「DLSS 4.5」のRay Reconstructionがパワーアップ。RTX SparkやAI技術「NVIDIA ACE」などNVIDIAがGeForce最新情報を明らかに"},{"source":"Automaton","url":"https://automaton-media.com/articles/reportjp/dlss45-20260826-463144/","title":"NVIDIA「DLSS 4.5 レイ再構成」を体験。レイトレ・パストレの“ぼんやり感”を減らし、ゲーム画面の「鮮度」を高める新モデル"},{"source":"Game Spark","url":"http://www.gamespark.jp/article/2026/08/26/171224.html","title":"NVIDIA「DLSS 4.5 レイ再構成」は光の“消え方”まで変わる！『プラグマタ』『バイオハザード レクイエム』で先行検証"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Pragmata","Resident Evil Requiem"],"studios":[],"people":[],"type":"news","domain":"games","is_roundup":false},"keyFacts":["DLSS 4.5 Ray Reconstruction uses a second-generation Transformer model and is scheduled for release on GeForce RTX 20 series through 50 series GPUs in August 2026.","The new model uses 35% more computational power and processes 20% more parameters while maintaining performance comparable to the previous version.","Games slated to support DLSS 4.5 Ray Reconstruction and path tracing include 007 First Light on September 15 and CONTROL Resonant on September 24.","NVIDIA states the performance impact of the new model is nearly negligible on GeForce RTX 40/50 series, with slight differences possible on RTX 20/30 series.","Game Spark's testing on a GeForce RTX 5090 found the new model tended to be a few percent lower in frame rate compared to the previous version, though not perceptibly different."]}