research(step2e): 8 parameter profiles, worst 570 ms -- speed gate met, look NOT yet accepted

Editor-only, default off. Seeded chamber graph (jittered XY grid, spanning tree, optional loops,
tunnels, shafts, pillars, ledges, spires, floating masses, basins), 8 profiles, four detail bands
at every surface-affecting 25 cm sample, sound brick proofs. 259^3 ring, six workers, medians of 3:
404-570 ms (worst TerracedBasin 570.0 ms). Detail, seam, bound-audit (0 violations, undersized
control caught), determinism (1 vs 6 workers) and TraversalSeeds all pass; live tests untouched.

Not accepted yet: the profiles are 81-97% open air. In the slices a "TightNetwork" is a large void
with scattered solid blobs (rooms of 0.5-0.76 x pitch overlap and merge), and the finest detail
band shows as salt-and-pepper speckle with 22-109 separate 1 m components per ring: fast partly
because air bricks skip, and the look needs the owner's judgement. Also missing vs live: maze,
flat/plain, crystal-chamber, surface-world and underwater grammars; water geometry.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ

Saved/Research/step2e/step2e_profiles_30/step2e_report.json

@@ -0,0 +1,815 @@
+{
+	"status": "pass",
+	"pass": true,
+	"worst_profile_meets_600ms": true,
+	"seed": 0,
+	"ring_dimension": 259,
+	"ring_samples": 17373979,
+	"workers_requested": 6,
+	"world_prepare_ms_excluded": 134.9404975771904,
+	"old_live_ring_ms": 9188.3964985609055,
+	"old_live_ring_raw_float_hash": "cf1e3a48b3bc1bda",
+	"field_definition": "Seeded jittered XY chamber cells form a deterministic origin-rooted spanning tree; selected loops, horizontal tunnels and full-strate shafts open the network. Each chamber can add pillars, annular ledges, paired stalactites/stalagmites, floating rock masses and a bowl floor with an explicit water level. Passage pads and anchor tunnels join the authored inter-strate route to the generated network.",
+	"parameter_space": "Eight named profiles can be assigned per strate from a stable seed hash (-1 mode), or forced for measurement. Each profile supplies nominal room, tunnel, shaft, feature-probability and basin values. Per-cell hashes deterministically roll room jitter and feature presence. Profile minima and maxima are recorded below; room height is clamped to the strate span, room radii to 0.20-0.72/0.80 of pitch, loop probability to 0-0.8, probabilities and water level to 0-1, and basin depth to 0-48 voxels.",
+	"parameter_ranges_across_eight_profiles":
+	{
+		"room_pitch_voxels":
+		{
+			"minimum_across_profiles": 96,
+			"maximum_across_profiles": 176
+		},
+		"room_radius_fraction_min":
+		{
+			"minimum_across_profiles": 0.5,
+			"maximum_across_profiles": 0.62000000476837158
+		},
+		"room_radius_fraction_max":
+		{
+			"minimum_across_profiles": 0.62000000476837158,
+			"maximum_across_profiles": 0.75999999046325684
+		},
+		"room_height_voxels":
+		{
+			"minimum_across_profiles": 216,
+			"maximum_across_profiles": 340
+		},
+		"floor_relief_voxels":
+		{
+			"minimum_across_profiles": 8,
+			"maximum_across_profiles": 20
+		},
+		"tunnel_radius_voxels":
+		{
+			"minimum_across_profiles": 20,
+			"maximum_across_profiles": 40
+		},
+		"tunnel_half_height_voxels":
+		{
+			"minimum_across_profiles": 22,
+			"maximum_across_profiles": 36
+		},
+		"loop_probability":
+		{
+			"minimum_across_profiles": 0.11999999731779099,
+			"maximum_across_profiles": 0.40000000596046448
+		},
+		"vertical_shaft_probability":
+		{
+			"minimum_across_profiles": 0.029999999329447746,
+			"maximum_across_profiles": 0.92000001668930054
+		},
+		"shaft_radius_voxels":
+		{
+			"minimum_across_profiles": 14,
+			"maximum_across_profiles": 28
+		},
+		"pillar_probability":
+		{
+			"minimum_across_profiles": 0.039999999105930328,
+			"maximum_across_profiles": 0.72000002861022949
+		},
+		"ledge_probability":
+		{
+			"minimum_across_profiles": 0.079999998211860657,
+			"maximum_across_profiles": 0.8399999737739563
+		},
+		"floating_mass_probability":
+		{
+			"minimum_across_profiles": 0.019999999552965164,
+			"maximum_across_profiles": 0.72000002861022949
+		},
+		"stalactite_stalagmite_probability":
+		{
+			"minimum_across_profiles": 0.11999999731779099,
+			"maximum_across_profiles": 0.75
+		},
+		"basin_probability":
+		{
+			"minimum_across_profiles": 0,
+			"maximum_across_profiles": 0.85000002384185791
+		},
+		"basin_depth_voxels":
+		{
+			"minimum_across_profiles": 0,
+			"maximum_across_profiles": 48
+		},
+		"water_level_fraction":
+		{
+			"minimum_across_profiles": 0.30000001192092896,
+			"maximum_across_profiles": 0.5
+		}
+	},
+	"resolution_contract": "One exact field sample per 25 cm lattice point. The four existing 8/4/2/1-sample detail bands are evaluated for every potentially surface-affecting point; no coarse field is interpolated onto the lattice. 4-cubed step 2e skips require the final macro field Lipschitz interval plus the full 5.25-unit detail supremum and marching-cubes halo.",
+	"finer_lattice_scaling": "For 12.5 cm voxels, double room pitch, room height, tunnel/feature dimensions and the broad-to-medium noise periods in sample units to preserve meter-scale shapes. Keep the 1-sample detail band or add a finer octave. The lattice grows 8x for a fixed world volume; surface bricks grow roughly with area while certified interior bricks remain cheap. This scale has not been timed.",
+	"variety_metric_method": "Open fraction uses every ring sample. Surface area estimates sign-changing lattice edges times 0.25 m squared. Nominal chamber-volume p10/p50/p90 values use the uniform per-cell radius roll and room height as circular-cylinder volumes. Tunnel-neck share and connected-component sizes use a 1 m downsampled six-neighbor occupancy grid. Verticality is the mean longest contiguous open run per XY column, with open-column coverage reported separately.",
+	"water_geometry_limit": "Basin profiles generate the bowl floor and water-level parameter; this density field does not render or simulate water.",
+	"worst_six_worker_ring_median_ms": 570.03279775381088,
+	"target_aim_ms": 350,
+	"hardest_profile": "HyperComplex",
+	"profiles": [
+		{
+			"profile_index": 0,
+			"name": "OpenVaults",
+			"parameters":
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+				"room_radius_fraction_min": 0.62000000476837158,
+				"room_radius_fraction_max": 0.75999999046325684,
+				"room_height_voxels": 340,
+				"floor_relief_voxels": 12,
+				"tunnel_radius_voxels": 40,
+				"tunnel_half_height_voxels": 36,
+				"loop_probability": 0.34999999403953552,
+				"vertical_shaft_probability": 0.14000000059604645,
+				"shaft_radius_voxels": 22,
+				"pillar_probability": 0.039999999105930328,
+				"ledge_probability": 0.11999999731779099,
+				"floating_mass_probability": 0.079999998211860657,
+				"stalactite_stalagmite_probability": 0.15000000596046448,
+				"basin_probability": 0,
+				"basin_depth_voxels": 0,
+				"water_level_fraction": 0.5
+			},
+			"nominal_chamber_volume_quantiles_m3":
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+				"p10_m3": 207803.41085068439,
+				"p50_m3": 246134.408195325,
+				"p90_m3": 287707.90649226471
+			},
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+			"six_worker_ring_trials_ms": [
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+				422.8769987821579
+			],
+			"open_air_fraction": 0.97343389214410814,
+			"estimated_surface_area_m2": 33145,
+			"estimated_surface_area_per_volume_m_inv": 0.12209523218601795,
+			"vertical_air_adjacency_share": 0.33298452070631224,
+			"vertical_air_column_share": 1,
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+			"components_9_to_64_coarse_m3": 0,
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+		},
+		{
+			"profile_index": 1,
+			"name": "TightNetwork",
+			"parameters":
+			{
+				"room_pitch_voxels": 104,
+				"room_radius_fraction_min": 0.51999998092651367,
+				"room_radius_fraction_max": 0.63999998569488525,
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+				"tunnel_radius_voxels": 20,
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+				"loop_probability": 0.11999999731779099,
+				"vertical_shaft_probability": 0.029999999329447746,
+				"shaft_radius_voxels": 14,
+				"pillar_probability": 0.059999998658895493,
+				"ledge_probability": 0.079999998211860657,
+				"floating_mass_probability": 0.019999999552965164,
+				"stalactite_stalagmite_probability": 0.11999999731779099,
+				"basin_probability": 0,
+				"basin_depth_voxels": 0,
+				"water_level_fraction": 0.5
+			},
+			"nominal_chamber_volume_quantiles_m3":
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+				"p10_m3": 38468.015011234471,
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+			"slice_directory": "E:/Projet Unreal/VoxelM/Plugins/VoxelForge/Saved/Research/step2e/step2e_profiles_30/set_01_tightnetwork"
+		},
+		{
+			"profile_index": 2,
+			"name": "ChamberHalls",
+			"parameters":
+			{
+				"room_pitch_voxels": 144,
+				"room_radius_fraction_min": 0.55000001192092896,
+				"room_radius_fraction_max": 0.72000002861022949,
+				"room_height_voxels": 320,
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+				"tunnel_radius_voxels": 34,
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+				"floating_mass_probability": 0.10000000149011612,
+				"stalactite_stalagmite_probability": 0.2199999988079071,
+				"basin_probability": 0.05000000074505806,
+				"basin_depth_voxels": 20,
+				"water_level_fraction": 0.40000000596046448
+			},
+			"nominal_chamber_volume_quantiles_m3":
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+				"p50_m3": 131338.58696522861,
+				"p90_m3": 160973.92909046411
+			},
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+		},
+		{
+			"profile_index": 3,
+			"name": "ShaftForest",
+			"parameters":
+			{
+				"room_pitch_voxels": 128,
+				"room_radius_fraction_min": 0.5,
+				"room_radius_fraction_max": 0.62000000476837158,
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+				"floating_mass_probability": 0.039999999105930328,
+				"stalactite_stalagmite_probability": 0.20000000298023224,
+				"basin_probability": 0,
+				"basin_depth_voxels": 0,
+				"water_level_fraction": 0.5
+			},
+			"nominal_chamber_volume_quantiles_m3":
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+			},
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+			"slice_directory": "E:/Projet Unreal/VoxelM/Plugins/VoxelForge/Saved/Research/step2e/step2e_profiles_30/set_03_shaftforest"
+		},
+		{
+			"profile_index": 4,
+			"name": "FloatingArchipelago",
+			"parameters":
+			{
+				"room_pitch_voxels": 136,
+				"room_radius_fraction_min": 0.55000001192092896,
+				"room_radius_fraction_max": 0.68000000715255737,
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+				"floor_relief_voxels": 10,
+				"tunnel_radius_voxels": 28,
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+				"loop_probability": 0.15000000596046448,
+				"vertical_shaft_probability": 0.10000000149011612,
+				"shaft_radius_voxels": 16,
+				"pillar_probability": 0.05000000074505806,
+				"ledge_probability": 0.10000000149011612,
+				"floating_mass_probability": 0.72000002861022949,
+				"stalactite_stalagmite_probability": 0.2800000011920929,
+				"basin_probability": 0,
+				"basin_depth_voxels": 0,
+				"water_level_fraction": 0.5
+			},
+			"nominal_chamber_volume_quantiles_m3":
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+				"p10_m3": 62161.040291956291,
+				"p50_m3": 74174.001993180806,
+				"p90_m3": 87247.530713802553
+			},
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+			"estimated_surface_area_per_volume_m_inv": 0.285293081107097,
+			"vertical_air_adjacency_share": 0.3339729720652625,
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+			"mean_longest_vertical_air_run_voxels": 196.60781636399497,
+			"longest_vertical_air_run_voxels": 248,
+			"one_meter_tunnel_neck_share": 0.034649779794953671,
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+			"largest_component_coarse_m3": 222906,
+			"components_1_to_8_coarse_m3": 64,
+			"components_9_to_64_coarse_m3": 0,
+			"components_65_to_512_coarse_m3": 0,
+			"components_over_512_coarse_m3": 1,
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+			"evaluated_samples": 8145623,
+			"worker_cpu_seconds": 2.359375,
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+			"slice_directory": "E:/Projet Unreal/VoxelM/Plugins/VoxelForge/Saved/Research/step2e/step2e_profiles_30/set_04_floatingarchipelago"
+		},
+		{
+			"profile_index": 5,
+			"name": "PillaredCathedral",
+			"parameters":
+			{
+				"room_pitch_voxels": 160,
+				"room_radius_fraction_min": 0.55000001192092896,
+				"room_radius_fraction_max": 0.72000002861022949,
+				"room_height_voxels": 248,
+				"floor_relief_voxels": 12,
+				"tunnel_radius_voxels": 32,
+				"tunnel_half_height_voxels": 34,
+				"loop_probability": 0.25,
+				"vertical_shaft_probability": 0.079999998211860657,
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+		"first_violation_sample_macro": 0,
+		"first_violation_sample_detail": 0,
+		"first_violation_macro_delta_per_voxel": 0,
+		"first_violation_path_max_gradient": 0,
+		"first_violation_tiny_step_max_gradient": 0,
+		"first_violation_inside_proven_brick": false,
+		"first_violation_claimed_air": false,
+		"undersized_bound_claims_checked": 20328,
+		"wrong_sign_samples_caught_by_undersized_bound": 14547,
+		"sound_supremum_audit_pass": true,
+		"deliberate_undersized_bound_failure_caught": true
+	},
+	"determinism":
+	{
+		"six_worker_run_1_quantized": "77439101d77e7750",
+		"six_worker_run_2_quantized": "77439101d77e7750",
+		"one_worker_quantized": "77439101d77e7750",
+		"six_worker_run_1_raw_float": "65bdd30af60254e1",
+		"six_worker_run_2_raw_float": "65bdd30af60254e1",
+		"one_worker_raw_float": "65bdd30af60254e1",
+		"same_across_two_runs_and_1_vs_6_workers": true,
+		"deliberate_quantized_hash_mismatch_rejected": true
+	},
+	"entrance_exit_walkability_test_added": true,
+	"inter_strate_passage_open_space_test_added": true,
+	"functional_test_filter": "VoxelForge.ParameterizedGeneration.TraversalSeeds"
+}