4DCodeBench: Benchmarking Agents on Inverse Graphics of Dynamic Scenes
Paper • 2610.03715 • Published • 12
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4DCodeBench-Synthetic
Project page | Paper | Code
The 100 synthetic cases of 4DCodeBench: a rendered video of a simulated scene and the ground-truth world behind it. The worlds come from ten simulators, and each carries the geometry of every frame and the trajectory of the moving matter, which is what a reconstruction is scored against.
Layout
videos/<case>.mp4 the reference video, as the benchmark reads it
worlds/<case>.h5 the ground-truth world, packed
43 GB of worlds and 188 MB of video. videos/<case>.mp4 is the same video that sits inside worlds/<case>.h5, byte for byte, so either copy can be used.
What a world holds
camera.json {"intrinsics": K, "extrinsic": E}, the fixed camera the video was rendered through
render.mp4 the reference video
meshes/<id> each rendered object's vertices and triangles at every frame
dynamics/<name> the moving matter: pos (frames, points, 3), column j the same material through time
solver/ a liquid solver's own bake, on the eight liquid cases
Positions are in world-space metres with Z up. A mesh may change its vertex count and topology from frame to frame, as a liquid surface or a fracture does; dynamics/ is where the frame-to-frame correspondence lives.
The eight liquid cases (B_02, B_09, B_11, B_13, B_14, B_19, B_27, B_28) also carry solver/manifest.json, solver/CACHE.json and solver/cache/, the bake their surface was meshed from.
Unpack a world into a directory with pack_world.py unpack worlds/<case>.h5 -o <dir> from the benchmark's code release. The packing is lossless and bit-exact in both directions.
Cases
| case | scene | case | scene |
|---|---|---|---|
| B_01 | arch_tower_projectile_collapse |
G_12 | paper_sheet_folded_in_half |
| B_02 | bottle_pour_into_glass |
G_13 | paste_drains_through_funnels |
| B_03 | bowling_strike_pin_scatter |
G_14 | ribbon_thin_die_mockup |
| B_04 | brick_lattice_plinth_ball_impact |
G_15 | shaving_cream_coils_into_a_pile |
| B_05 | cloth_curtain_draw_gather |
G_16 | two_arms_press_plate_on_dough_retract |
| B_06 | cloth_tape_fanfold_stack |
HM_01 | HOT_armacat |
| B_07 | cloth_throw_drape_over_table |
HM_02 | HOT_boards_flow |
| B_08 | conveyor_drops_screws_and_nuts_into_bin |
HM_03 | HOT_faceless |
| B_09 | dam_break_column_collapse_reference |
HM_04 | HOT_turkey |
| B_10 | dial_sweeps_spheres_through_slot |
HM_05 | HOT_wheel_stress |
| B_11 | droplet_crown_splash_worthington_jet |
HM_06 | preview_chains |
| B_12 | firm_tennis_ball_struck_by_racket |
HM_07 | preview_fracture |
| B_13 | fluid_swirl_inside_glass_sphere |
LI_01 | cipc-arma-rods |
| B_14 | fountain_tiered_bowl_overflow |
LI_02 | eevee_curtain_hires |
| B_15 | glass_chute_ball_topples_cube_tower |
LI_03 | eevee_domino_abd |
| B_16 | jelly_beans_drop_scatter |
LI_05 | libuipc-helicopter-front |
| B_17 | kapla_keep_diagonal_slow_impact |
LI_07 | uipc_arma_roller |
| B_19 | liquid_jet_pool_fill_splash |
LI_08 | uipc_chain10 |
| B_20 | magnetic_ball_pickup |
LI_09 | uipc_rods_long10turn |
| B_21 | many_balls_drum_tumble |
ML_01 | jets |
| B_23 | newtons_cradle_elastic_momentum_transfer |
ML_02 | nacc |
| B_24 | pool_table_rigid_body_break |
ML_03 | noodles |
| B_25 | rope_pendulum_peg_wrap_windup |
ML_04 | snow |
| B_26 | seesaw_ball_launcher |
PF_01 | eevee_puff_real |
| B_27 | sink_faucet_fill_drain |
PF_02 | eevee_stack_exact |
| B_28 | slit_spillway_plunge_basin |
PF_03 | noodles_ppf |
| B_29 | soft_bodies_vertical_chute_obstruction |
PF_04 | ppf_cards |
| B_30 | soft_tire_bounces_down_stairs |
PF_05 | ppf_codim |
| B_31 | tipping_jug_pours_marbles_into_bucket |
PF_06 | ppf_fishingknot |
| B_32 | wall_plate_cascade_ball_to_bin |
PF_07 | ppf_frictionGradient |
| B_33 | wrecking_ball_chain_impact_demolition |
PF_08 | ppf_needle |
| CK_01 | bullet |
PF_09 | ppf_roller |
| CK_02 | castle_crasher_lowres |
S_01 | sph_cereal_bowl36 |
| CK_03 | chimney_ball |
S_02 | sph_dam_break_floaters |
| CK_04 | oreo |
S_03 | sph_water_bell |
| CK_05 | pumpkin |
TM_01 | banana_cycles |
| CK_06 | sand_armadillo |
TM_02 | goo_cycles |
| CK_07 | sand_vs_elastic_armadillo |
TM_03 | sand_stir_cycles |
| CK_08 | twisting_bar |
Z_01 | AnisoMPM_meatTear |
| CK_09 | two_dragons |
Z_02 | AnisoMPM_tubeCompress |
| G_01 | anchor_dock_v5 |
Z_03 | armadillo_quartering |
| G_02 | chain-net-16x16-ball |
Z_04 | bread_tear |
| G_03 | clay_spring |
Z_05 | collapse_sand |
| G_04 | coup_sand_wheel |
Z_06 | dam_jello_ball_150 |
| G_05 | coup_sph_mpm |
Z_07 | dino_bullet |
| G_06 | coup_sph_rigid |
Z_08 | dongpoPork |
| G_08 | frosting_piped_onto_a_cupcake |
Z_09 | fourbar_materials |
| G_09 | hydraulic_press_crushes_soft_head |
Z_10 | lion_viscoelastic |
| G_10 | ipc_cloth_stack |
Z_11 | silicone_viscoelastic |
| G_11 | octopus-knives |
Z_12 | watermelon_smash |
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