PREDICTED dimension state (currentStep advanced to the next
playback tick via DimensionAnimationManager.peekNextValue).
THREE.Group containing the scene (for maxRadius).
Optional loader ID, defaults to default loader.
Per-pass LOD time budget for the shadow pass (always set — it is also what makes prefix ladders cacheable).
OptionalladderDepth?: number | "auto"Pinned playback ladder depth; the shadow pass
deepens to exactly this many rungs (see ViewState.ladderDepth).
Fire a background t+1 slice prefetch for a PREDICTED dimension state (dimension playback). Mirror of updateSceneForDimensions, but fire-and-forget and routed to
SceneLoader.prefetchSlice— it never moves the real view and is aborted by the next foreground update.