SERIAL READING — linear, no camera. Each word shows the model it commits (snapshotted from the same geometry the Scene tab uses). The sidebar no longer overlaps: the timeline starts to its right.

“The cat sat and the sun shone”

two independent steppers — serial reading (default) and scene
🌐 Scene
📏 Serial reading
Press ▶ step — each word commits its models and items in reading order.
Each word card in the timeline shows the model snapshot its commitment produces. Determiners (“the”) commit nothing — they stay ?. “sat” is the compression star: one word, three commits.
Scene stepper is independent — press ▶ step to build the configuration item by item.
Ledger
1 · ground_plane — grass (implied by “sat”)
2 · form: cat — orange tabby, stylized
3 · pose: sat — haunches down, tail curled
4 · position — left of center (frame decision)
5 · orient — facing the sun (derived from 7)
6 · light_source: sun — disc + warm light
7 · under-light-of — coupling: shadow computed
8 · supported-by — contact: haunches + paws
Unresolved
· “the (cat)” — ? defaulted: tabby
· “the (sun)” — ? defaulted: late afternoon
· ground material? — defaulted: grass
· aware of the sun? — defaulted: yes
Refinement (post-serial)
drag = orbit · scroll = zoom · ◀ ▶ keys step the active tab