Color antialiased half-edges by ray outcome with configurable Catppuccin colors and default opacity 0.5.
Rasterize premultiplied RGBA8 overlays on the producer and composite in place after writing the clean image. Keep single-frame, movie, and replay output consistent.
Add overlay, CLI, and queue ownership regressions and document the final output architecture.
- Gather the union of every movie frame's all-sky tiles once and read them in bounded batches, replacing the per-frame prefetch scan and log.
- Fuse the fast supersampled-buffer clear into the FFTW pack pass so a resolved frame starts clean with no serial memset.
- Split parallel HDR->RGB8 tone mapping from PNG encoding.
- Add a bounded single-producer/single-writer movie output queue used by both observer movies and multi-frame imported lens maps, with writer timing and error propagation.
- Add --png-compression-level and --movie-output-workers shared|reserve-one.
- Add --fast-fftw-plan estimate|measure|wisdom|wisdom-update with strict wisdom identity sidecars.
- Add staged movie timing, regression tests, and docs.
wyj