One synchronized source360° recording of a changing scene
Input crop · shown to model
t1
t2turning →
t3off-screen

The camera turns away; the target disappears from this crop.

Reference crop · kept as evidence
t1
t2
t3

A second crop from the same moment continues to record the target.

Model renderingInput video rendered along the reference camera path
COMPARED WITH
Held-out recordingWhat the synchronized reference crop actually captured
PermanenceIs the target present?
ContinuityIs it in the recorded place?
AppearanceDoes it still look like itself?