nx_uncanny_valley.nx source

1// nx_uncanny_valley.nx -- composite "person doesn't belong in scene" detector. 2// 3// Image #58 failure class: subject feels SLIGHTLY pasted onto the 4// scene. Multiple sub-signals contribute: 5// 1. Lighting consistency (already shipped: nx_lighting_consistency) 6// 2. Shadow integration — does subject cast shadows on environment? 7// 3. Skin-too-perfect signal (mannequin index lookup) 8// 4. Edge-seam / chroma-fringe artifact on subject silhouette 9// 5. Subject-environment color cast match 10// 11// This composite takes the 5 sub-scores and emits one uncanny-valley 12// verdict. High = compositing-seam visible / pasted. Low = subject 13// belongs in scene. 14// 15// Output flat-array: 16// result[0..4] = per-axis Q10 scores 17// result[5] = composite_q10 18// result[6] = verdict 19// result[7] = failing_axis 20 21// nx_safety_envelope: 22// intended_use: AUTO_APPLIED -- primitive-specific tuning queued 23// sil_target: SIL1 24// evidence: [bulk_applied_2026-05-16, see-file-comment-for-detail] 25// verdict: NOT_YET_EVALUATED 26 27import "nx_syscalls.nx" 28const NX_MAGIC_2048: i64 = 2048 29 30const NX_UNCANNY_RES_LIGHTING: i64 = 0 31const NX_UNCANNY_RES_SHADOW: i64 = 1 32const NX_UNCANNY_RES_MANNEQUIN: i64 = 2 33const NX_UNCANNY_RES_EDGE_SEAM: i64 = 3 34const NX_UNCANNY_RES_COLOR_CAST: i64 = 4 35const NX_UNCANNY_RES_COMPOSITE: i64 = 5 36const NX_UNCANNY_RES_VERDICT: i64 = 6 37const NX_UNCANNY_RES_FAIL_AXIS: i64 = 7 38const NX_UNCANNY_RES_FIELDS: i64 = 8 39 40const NX_UNCANNY_V_PASTED_IN: i64 = 0 41const NX_UNCANNY_V_NOTICEABLE: i64 = 1 42const NX_UNCANNY_V_ACCEPTABLE: i64 = 2 43const NX_UNCANNY_V_BELONGS_IN_SCENE: i64 = 3 44 45const NX_UNCANNY_AXIS_LIGHTING: i64 = 0 46const NX_UNCANNY_AXIS_SHADOW: i64 = 1 47const NX_UNCANNY_AXIS_MANNEQUIN: i64 = 2 48const NX_UNCANNY_AXIS_EDGE_SEAM: i64 = 3 49const NX_UNCANNY_AXIS_COLOR_CAST: i64 = 4 50 51// Aggregate 5 axis scores. Each input is Q10 0..1024. 52// Pass -1 to mark "not measured" (axis skipped from composite). 53// lighting from nx_lighting_consistency composite 54// shadow presence/quality of subject-cast shadows on env (-1 if unavail) 55// mannequin from nx_mannequin_index (high = LIVING_PERSON) 56// edge_seam silhouette-edge cleanness (1024 = no seam visible) 57// color_cast subject color tint matches environment global cast 58// 59// Weighting: lighting 25 / shadow 20 / mannequin 25 / edge 15 / color 15. 60func nx_uncanny_valley(lighting_q10: i64, shadow_q10: i64, 61 mannequin_q10: i64, edge_seam_q10: i64, 62 color_cast_q10: i64, result: *i64) -> i64 { 63 var i: i64 = 0 64 while i < NX_UNCANNY_RES_FIELDS { result[i] = 0; i = i + 1 } 65 66 result[NX_UNCANNY_RES_LIGHTING] = lighting_q10 67 result[NX_UNCANNY_RES_SHADOW] = shadow_q10 68 result[NX_UNCANNY_RES_MANNEQUIN] = mannequin_q10 69 result[NX_UNCANNY_RES_EDGE_SEAM] = edge_seam_q10 70 result[NX_UNCANNY_RES_COLOR_CAST] = color_cast_q10 71 72 var sum: i64 = 0 73 var wsum: i64 = 0 74 if lighting_q10 >= 0 { sum = sum + lighting_q10 * 25; wsum = wsum + 25 } 75 if shadow_q10 >= 0 { sum = sum + shadow_q10 * 20; wsum = wsum + 20 } 76 if mannequin_q10 >= 0 { sum = sum + mannequin_q10 * 25; wsum = wsum + 25 } 77 if edge_seam_q10 >= 0 { sum = sum + edge_seam_q10 * 15; wsum = wsum + 15 } 78 if color_cast_q10 >= 0 { sum = sum + color_cast_q10 * 15; wsum = wsum + 15 } 79 if wsum == 0 { return 1 } 80 let composite: i64 = sum / wsum 81 result[NX_UNCANNY_RES_COMPOSITE] = composite 82 83 var verdict: i64 = NX_UNCANNY_V_PASTED_IN 84 if composite >= 410 { verdict = NX_UNCANNY_V_NOTICEABLE } 85 if composite >= 614 { verdict = NX_UNCANNY_V_ACCEPTABLE } 86 if composite >= 819 { verdict = NX_UNCANNY_V_BELONGS_IN_SCENE } 87 result[NX_UNCANNY_RES_VERDICT] = verdict 88 89 // Failing axis (lowest measured). 90 var min_score: i64 = NX_MAGIC_2048 91 var min_axis: i64 = -1 92 if lighting_q10 >= 0 { if lighting_q10 < min_score { min_score = lighting_q10; min_axis = NX_UNCANNY_AXIS_LIGHTING } } 93 if shadow_q10 >= 0 { if shadow_q10 < min_score { min_score = shadow_q10; min_axis = NX_UNCANNY_AXIS_SHADOW } } 94 if mannequin_q10 >= 0 { if mannequin_q10 < min_score { min_score = mannequin_q10; min_axis = NX_UNCANNY_AXIS_MANNEQUIN } } 95 if edge_seam_q10 >= 0 { if edge_seam_q10 < min_score { min_score = edge_seam_q10; min_axis = NX_UNCANNY_AXIS_EDGE_SEAM } } 96 if color_cast_q10 >= 0 { if color_cast_q10 < min_score { min_score = color_cast_q10; min_axis = NX_UNCANNY_AXIS_COLOR_CAST } } 97 result[NX_UNCANNY_RES_FAIL_AXIS] = min_axis 98 return 0 99}