Streaming a 25-Million-Gaussian Scene: Loading Detail as the Camera Moves

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The integration involved a 1.76 GB PLY file containing about 25.84 million Gaussians, which the team did not simply load in full. Instead, server-side tools generated levels of detail and organized the data into paged assets for a WebGPU viewer. The viewer first reads a page directory and fetches only the coarse root pages, so it can display something before all 581 pages arrive. Camera position, orientation, and canvas size then determine which regions need finer detail, and missing pages are requested, decoded, and reselected in rounds. The article stresses that the source count, the roughly 38 million tree nodes, and the per-view selection budget are distinct quantities.

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