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Streaming & Performance

When you publish from the Editor or directly upload a splat, SuperSplat compresses it to the SOG family of formats for fast delivery. Large splats are automatically converted to Streamed SOG so they load quickly and run smoothly on any device.

How your splat is compressed​

Your splat's Gaussian count determines the format:

  • Fewer than 1 million Gaussians — the splat is compressed to a single, non-streamed .sog file.
  • 1 million Gaussians or more — SuperSplat generates a set of levels of detail (LODs) using splat-transform, halving the Gaussian count at each level (decimation), and compresses them into a Streamed SOG bundle: a lod-meta.json index plus per-LOD .sog chunks. Larger splats produce more levels, so expect some extra back-end processing time after upload.

When you directly upload a PLY, this choice appears as an Auto generate LODs checkbox, ticked automatically at 1 million Gaussians or more; you can override it before publishing. Splats uploaded as a pre-built LCC or SSOG archive are always streamed.

Near-instant loads and the Gaussian budget​

A Streamed SOG splat loads progressively: the viewer shows the scene as soon as the lowest level of detail is ready, then fills in finer detail as it streams in. This gives near-instant time-to-first-frame even for very large scenes.

At runtime the viewer enforces a Gaussian budget — a cap on how many Gaussians are drawn at once — so the scene stays within a sensible amount of memory and renders at a good frame rate. The budget depends on the device and the viewer's Performance Mode setting (a toggle in the viewer's settings menu):

DevicePerformance Mode onPerformance Mode off
Desktop2M Gaussians4M Gaussians
Mobile / XR1M Gaussians2M Gaussians

As the camera moves, the viewer raises and lowers the level of detail across the scene to stay within this budget — so you get consistent performance and bounded memory use on everything from a phone to a desktop. (Performance Mode also lowers the render resolution for extra headroom on slower devices.)

Bringing your own LODs​

Advanced users can skip the automatic step and supply a pre-built Streamed SOG bundle:

See also​