Following AGENTS.md's Never crash rules for the M3 / M4 additions:
- Cache Frames When Idle panicked (`clamp` with min > max) when the work area was inverted
(start set past the end); an empty work area now has nothing to cache.
- `file.newCompFromSelection`: the sequence overlap times the layer count overflowed for a huge
`overlapDuration` (wrapping to a wrong comp length without overflow checks); negative or
non-finite values fall back to 1 s and the product saturates. The lead item is read with
`get()` instead of indexing.
- Layer Settings' enablement reads the first selected layer with `first()`.
- Regression tests for both (each failed before the fix).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Composition ▸ Preview ▸ Cache Frames When Idle was only a saved checkbox. After a second
without input or edits it now renders the work area's frames (from the current time on, then
from the start) into the RAM preview, a few at a time behind the viewer's own frame, until the
work area is cached or the RAM preview budget is full.
Docs: preferences.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Viewer Resolution Auto rendered at half its scale while a preview played, so frames cached
while scrubbing were not played and frames cached by the preview were re-rendered once it
stopped. Auto now follows the zoom alike playing and paused (Fast Previews still lowers it
while dragging).
- Cache Before Playback waited for every frame of the range: a range larger than the RAM
preview budget evicted its first frames and never started. The range is now cut to the
frames that fit (90 % of Settings ▸ Memory & CPU's budget) with a message, then cached and
played.
- The Info panel shows the frame rate a playing preview achieves and whether it is real time
(`Playback::achieved_fps` / `real_time`, automation id `info.previewFps`).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Preview panel: five shortcuts (Spacebar, Shift+Spacebar, Numpad 0, Shift+Numpad 0,
Alt+Numpad 0) each with saved options (include video/audio/overlays/layer controls, loop,
cache before playback, range incl. play around current time, play from, frame rate, skip,
resolution, full screen, play cached frames, move time to preview time), persisted in
prefs; playback.settings.get/set; the playback loop follows the preview plan.
Align panel: layer.align {edge, to} and layer.distribute {mode} engine commands (bounds
through transform and parents, one undo step); Align Layers to dropdown and Distribute row.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
