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Iterative Lightmap Updates for Scene Editing

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Guowei Lu, Christoph Peters, Petr Kellnhofer, Elmar Eisemann

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Iterative Lightmap Updates for Scene Editing is a Pacific Graphics 2025 conference paper by Guowei Lu, Christoph Peters, Petr Kellnhofer, and Elmar Eisemann, hosted on the Moments in Graphics project page with abstract, notes, and downloads.

It covers theory and an iterative path-tracing algorithm that updates lightmaps when objects are inserted or removed by focusing on affected paths, plus an importance sampling scheme that speeds convergence. The authors describe a GPU implementation aimed at interactive scene editing rather than full lightmap rebuilds from scratch.

It is for advanced researchers and engineers working on precomputed global illumination, lightmaps, and interactive editing tools. Readers should already know path tracing and lightmap baking workflows.

The page is a free author project site with the abstract, presentation note for Pacific Graphics 2025, and links to the official Eurographics version and related downloads.

It is useful when you need a concise, citable summary of incremental lightmap update ideas tied to a recent Pacific Graphics talk. Link last verified accessible on 2026-09-29. Link last verified accessible on 2026-09-28.