PreviewInfo
What the preview is actually delivering, while the user is watching.
Constructors
Properties
Per-property trust. Mostly static, though smoothness moves with load.
Every part of the composition that renders nothing and so was left out, the same list the export plan for this composition carries.
The frame size the composition outputs, before any preview-only downscale. Size the preview surface to this aspect rather than to the source's: the effect pipeline preserves the composition's aspect and lets the surface letterbox, so a container whose ratio does not match turns mostly black once effects are switched on.
The weakest EffectParity across the composition's effects.
The per-effect detail behind parity.
The preview's resolution as a fraction of the export's, 1f when they match. Every scale-dependent parameter normalises against this.