Three solver defects made limbs teleport, twist, or windmill: write-back angles wrapped at ±180 and lerped the long way around; branch flips landed on configurations the anatomical write-back cannot represent, silently pulling pinned extremities off their pins; and the degenerate straight-limb bend plane fell back to the camera axis instead of the anatomical anterior. solve_limb now verifies each branch reproduces the solved end before accepting it, resolve unwraps written-back angles toward the pose they replace, and the degenerate plane comes from the parent's anterior axis. render.py --check replays every exercise's full tween loop and fails hard on six invariants (pin fidelity, continuity, wraps, authored-vs-resolved drift, ground penetration, resolved ROM); --export refuses to ship a failing exercise. All 66 motions re-authored or retouched to pass: honest authored angles where pins used to override them silently, grounded feet on the seated machines, a vertical bench-press bar path, straight-armed child's pose, a butterfly stretch seated on the mat, and FK arms where pins forced impossible reaches. MotionSolver.swift mirrors the solver changes line for line, held by regenerated fixtures. Claude-Session: https://claude.ai/code/session_01PKptrgbx74peTwHGRxBojv
40 lines
1.3 KiB
JSON
40 lines
1.3 KiB
JSON
{
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"name": "Abdominal",
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"primary": 2,
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"working": ["spine"],
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"props": [
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{"type": "scene", "shapes": [
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{"kind": "line", "pts": [[120, 128], [114, 62]], "w": 8, "depth": 7},
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{"kind": "line", "pts": [[106, 130], [150, 130]], "w": 8, "depth": 8},
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{"kind": "line", "pts": [[122, 132], [122, 150]], "w": 4},
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{"kind": "line", "pts": [[102, 150], [150, 150]], "w": 4, "depth": 5},
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{"kind": "line", "pts": [[156, 149], [190, 149]], "w": 5, "depth": 6}
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]},
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{"type": "pad", "at": ["hand_r", "hand_l"], "angle": 90, "halfLen": 14, "w": 6}
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],
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"frames": [
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{
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"hold": 0.4, "tween": 1.0,
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"root": {"pos": [128, 126], "pitch": -4},
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"spine": [0, 4],
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"neck": 8,
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"shoulder_r": 3, "elbow_r": 105,
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"shoulder_l": 3, "elbow_l": 105,
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"hip_r": 66, "knee_r": 115,
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"hip_l": 66, "knee_l": 119,
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"pins": {"hand_r": [155, 62], "hand_l": [161, 64], "foot_r": [168, 150], "foot_l": [172, 150]}
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},
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{
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"hold": 0.4, "tween": 1.0,
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"root": {"pos": [128, 126], "pitch": 10},
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"spine": [0, 40],
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"neck": 18, "head": -26,
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"shoulder_r": 39, "elbow_r": 121,
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"shoulder_l": 39, "elbow_l": 121,
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"hip_r": 80, "knee_r": 115,
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"hip_l": 80, "knee_l": 119,
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"pins": {"hand_r": [190, 76], "hand_l": [196, 78], "foot_r": [168, 150], "foot_l": [172, 150]}
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}
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]
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}
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