Reference-based 3D scene stylization aims to transfer the look of a reference image onto a reconstructed 3D scene without altering its geometry. The new arXiv paper, RxGS, tackles this problem by decomposing the scene's appearance into BRDF (bidirectional reflectance distribution function) components, which describe how surfaces reflect light.
According to the abstract, recent methods perform stylization by optimizing the appearance representation directly. RxGS instead separates material properties from lighting, which allows the stylized scene to be relit under new lighting conditions. This is a key advantage over methods that bake lighting into the appearance.
The paper is listed as a new announcement on arXiv, but the abstract is truncated in the source, so details on experiments and comparisons are not available in the provided text. The title and opening indicate that BRDF decomposition is central to the approach.