animation/tools/tailor/md_piupiu_arrsweep.py

# Arrangement-x sweep for bottomTest1 (strand skirt). Diagnostic, exports nothing.
#
#   python tools/md_bridge.py --file tools/tailor/md_piupiu_arrsweep.py --timeout 880
#
# WHY: the skirt's waistband folds on ONE SIDE only (turntable side B shows a flap
# jutting out with a grey reverse-face wedge and a strand group folded over itself;
# side A is clean). An asymmetric defect needs an asymmetric input, and the only one
# is SetArrangementPosition x: front=50 / back=0, inherited from md_piupiu.py.
#
# But setting BOTH to 50 — which is exactly what fixed the same one-sided fold on the
# TOP — makes this skirt fall to the floor (band top measured 0.117 m). The top
# arranges on Body_*_Center_1; this arranges on Leg_Skirt_Front/Back, and those points
# evidently do not share a convention. So 50/0 may be load-bearing here rather than a
# copy-paste artefact.
#
# CONTROL: combo (50, 0) must reproduce the shipped drape (band top ~1.09 m). If the
# control fails, the harness is broken and every cell is void — that is exactly how
# md_pari_armsweep.py wasted a run.
#
# Pass/fail is read from GEOMETRY, not images: a garment on the floor measures
# band_top < 0.3 m, so the sweep self-reports which cells even stayed on the body.
import os
import shutil
import tempfile

AVATAR_FBX = r"C:\Users\Jeremy\tinqs\animation\tools\tailor\avatar\Lena_QuatSkin_Avatar.fbx"
ZFAB = r"C:\Users\Public\Documents\MarvelousDesigner\New Assets\Fabric\(Default for Simulation).zfab"

M_TEETH = 16
W_TOP, W_HEM = 375.0, 700.0
BAND_H, STRAND_H = 60.0, 530.0
GAP_TOP, GAP_HEM = 6.0, 11.0
PARTICLE_MM, COLLISION_MM = 20.0, 10.0
ARR_Y = 92
COMBOS = [(50, 0), (50, 50), (0, 0), (0, 50)]   # (50,0) is the CONTROL

BAND_TOP = STRAND_H + BAND_H
BAND_BOT = STRAND_H
INSET = (W_HEM - W_TOP) / 2.0
pitch_top = W_TOP / M_TEETH
pitch_hem = W_HEM / M_TEETH

report = {"combos": {}, "control": "50_0", "control_expect_band_top_m": 1.09}

def outline(dx):
    pts = [(INSET, BAND_TOP), (INSET + W_TOP, BAND_TOP), (INSET + W_TOP, BAND_BOT)]
    for j in range(M_TEETH - 1, -1, -1):
        ta = INSET + j * pitch_top + GAP_TOP / 2.0
        tb = INSET + (j + 1) * pitch_top - GAP_TOP / 2.0
        ha = j * pitch_hem + GAP_HEM / 2.0
        hb = (j + 1) * pitch_hem - GAP_HEM / 2.0
        if j < M_TEETH - 1:
            pts.append((tb, BAND_BOT))
        pts += [(hb, 0.0), (ha, 0.0), (ta, BAND_BOT)]
    return [(x + dx, y, 0) for (x, y) in pts]

for xf, xb in COMBOS:
    key = "%d_%d" % (xf, xb)
    utility_api.NewProject()
    op = ApiTypes.ImportExportOption()
    op.scale = 10.0
    op.bAddArrangementPoints = True
    op.bAutoTranslate = True
    import_api.ImportFBX(AVATAR_FBX, op)

    pts_f = outline(0.0)
    sf = pattern_api.CreatePatternWithPoints(pts_f)
    sb = pattern_api.CreatePatternWithPoints(outline(W_HEM + 400.0))
    L_RIGHT, L_LEFT = 1, len(pts_f) - 1
    # crossed pairing: for a two-panel tube with only side seams this IS the reversal
    pattern_api.AddSeamlinePairGroup(sf, L_RIGHT, sb, L_LEFT, False, False)
    pattern_api.AddSeamlinePairGroup(sf, L_LEFT, sb, L_RIGHT, False, False)

    fab = fabric_api.AddFabric(ZFAB)            # PLAIN: judge shape, not motif
    for p in (sf, sb):
        pattern_api.SetPatternPieceFabricIndex(p, fab)
        pattern_api.SetParticleDistanceOfPattern(p, PARTICLE_MM)
        pattern_api.SetAddlThicknessCollision(p, COLLISION_MM)

    arr = {a["ArrangementName"]: int(a["ArrangementIndex"])
           for a in pattern_api.GetArrangementList()}
    pattern_api.SetArrangement(sf, arr["Leg_Skirt_Front"])
    pattern_api.SetArrangement(sb, arr["Leg_Skirt_Back"])
    pattern_api.SetArrangementPosition(sf, xf, ARR_Y, 50)
    pattern_api.SetArrangementPosition(sb, xb, ARR_Y, 50)

    pattern_api.SetPatternStrengthen(sf, True)
    pattern_api.SetPatternStrengthen(sb, True)
    utility_api.ResetClothArrangement()
    ok1 = utility_api.Simulate(250)
    pattern_api.SetPatternStrengthen(sf, False)
    pattern_api.SetPatternStrengthen(sb, False)
    ok2 = utility_api.Simulate(50)
    utility_api.Refresh3DWindow()

    # geometry verdict: on the floor measures band_top < 0.3 m
    mop = ApiTypes.ImportExportOption()
    mop.bExportGarment = True
    mop.bExportAvatar = False
    probe = os.path.join(tempfile.gettempdir(), "tinqs_arrsweep_%s.obj" % key)
    export_api.ExportOBJ(probe, mop)
    ys = []
    with open(probe) as fh:
        for line in fh:
            if line.startswith("v "):
                ys.append(float(line.split()[2]) * 0.001)   # OBJ is MM
    ys.sort()
    on_body = bool(ys) and ys[-1] > 0.30

    shots = export_api.ExportTurntableImages(4)
    saved = {}
    for i, label in ((0, "front"), (1, "sideA"), (3, "sideB")):
        if i < len(shots) and os.path.exists(shots[i]):
            dst = os.path.join(tempfile.gettempdir(),
                               "tinqs_arrsweep_%s_%s.png" % (key, label))
            shutil.copyfile(shots[i], dst)
            saved[label] = dst
    report["combos"][key] = {
        "x": [xf, xb], "sim": [ok1, ok2], "on_body": on_body,
        "band_top_m": round(ys[-1], 3) if ys else None,
        "hem_m": round(ys[0], 3) if ys else None, "shots": saved}

result = report