Time threshold (ms) for considering a LOD load "fast" (likely a cache hit).
If a LOD loads faster than this, the loader continues to the next LOD.
If slower, it stops and lets the refinement loop pick up the rest.
Shared across all progressive loaders (Points, Lines, GSplats, and the Mesh
reveal ladder, which reaches it through streaming-policy.ts) for
cross-type symmetry — a single generic streaming threshold, not a
per-geometry tuning knob.
Time threshold (ms) for considering a LOD load "fast" (likely a cache hit). If a LOD loads faster than this, the loader continues to the next LOD. If slower, it stops and lets the refinement loop pick up the rest.
Shared across all progressive loaders (Points, Lines, GSplats, and the Mesh reveal ladder, which reaches it through
streaming-policy.ts) for cross-type symmetry — a single generic streaming threshold, not a per-geometry tuning knob.