NVIDIA's DLSS 5 follow-up answers raise questions about earlier messaging NVIDIA's Jacob Freeman responded to a query about DLSS5 technology posed by
NVIDIA had earlier described DLSS 5 in a way that suggested a deeper understanding of the scene. The follow-up answers paint a narrower picture. When asked whether the model reads PBR (Physically Based Rendering) properties from the engine, NVIDIA said: “DLSS 5 only takes the rendered frame and: “DLSS 5 only takes the rendered frame and motion vectors as inputs. Materials are inferred from the rendered frame.” In other words, the model is not reading metallic, roughness, normal maps, or other underlying material properties directly.
That may explain why some preview images raised concerns. In one example, a character appears to gain hair detail in an area where it was not visible before. In another, facial details appear altered enough (like the nose) to raise questions about whether the model is changing the look of the character rather than only improving lighting. NVIDIA’s response was that “the underlying geometry is unchanged,”
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Yup, that underlying geometry is unchanged, that nose was always that deformed and big.
All of the examples just feel like those weird touched up athletic photos where they just blow out the contrast to absolutely crunchy levels.