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SplatSource

A 3D Gaussian splat source. Either:

  • a URL to a .ply / .compressed.ply file (INRIA 3DGS or its compressed variant), or its raw bytes, or
  • several LOD levels (lodUrls, finest → coarsest) concatenated into one global-sort buffer.

The bytes are decoded on the CPU (covariance precompute + Y-up flip) and uploaded to GPU textures by the in-house WebGL2 renderer (GSplat) — no external splat engine.

Properties​

lodUrls?​

optional lodUrls: string[]

Several LOD levels (finest first). Picked per spatial cell by camera distance.

manifestUrl?​

optional manifestUrl: string

OUT-OF-CORE streaming source: the folder containing lod-meta.json (a B-tree LOD manifest of on-disk SOG chunks). Streamed by GSplatStream with a fixed GPU budget (fetch/evict + global sort) instead of fully resident. A url ending in lod-meta.json is also detected.

requestManager?​

optional requestManager: SplatRequestManager

Optional fetch adapter (platform hidden files, S3 Range, signed URLs). Mirrors PointCloudLoader's requestManager — the component decodes, the app fetches.

streamBudget?​

optional streamBudget: number

Resident splat budget for the streaming path (default ~6M).