# Movies (MP4, H.264, 30 fps)

Each movie shows the complete simulation run of one design: the deformed structure coloured by member utilisation
ε_max/ε_c (failed members dashed grey, deformation ×1) next to the force–displacement curve with a moving marker.
Frames are reconstructed exactly from the stored topology-state history (u = d·u₁(state), one state per failure cascade),
rendered with `analysis/render_movie.py` and encoded with ffmpeg. The in-app "Record movie of the run" button produces
the same kind of movie from the browser (MP4 where the browser supports MediaRecorder/H.264, otherwise WebM).

| file | design | what to look for |
|---|---|---|
| S4_F10_flat_ord_movie_s1.mp4 | flat ordered 16×16 grid (P01) | all vertical members reach ε_c together; one avalanche separates the specimen (abruptness 1.0) |
| S3_E9_ref_ord_movie_s1.mp4 | ordered nested hierarchy (P02) | first failure at an interface, then a runaway crack (abruptness 0.99) |
| S3_E9_ref_dis_movie_s1.mp4 | disordered hierarchical reference (P06) | fine members and interfaces fail around the coarse junctions; progressive, distributed damage |
| S4_F10_L3_movie_s1.mp4 | level-selective design (P03) | distributed fine-level damage while the ordered coarse cross carries the load, then an intermediate drop |
| S4_F10_ord_red1_movie_s1.mp4 | ordered fully braced lattice (P05) | braced grid: intermediate failure with a localised band |
| S3_E4_L1_dis0.35_rt0.6_s1..s3.mp4 | levels ≥ 1 disordered, r_t = 0.6 (three seeds) | route (ii): the straight level-0 cross carries most of the load and fails as one unit after fine-level damage |