jeremy
3ba86b2ea8
Bulk import of the working lanes that were living untracked on the PC. Content: - characters/ Lena/male body lanes, bakes, texture work, run logs - clothing/ garment pipeline, configs, gates, contract docs - garments/ MD-authored garment sources (.zprj/.zpac) - UAL-Lib/ Universal Animation Library 2 source (.blend/.fbx/.glb) - tools/ blender_bridge, iclone_bridge, md_bridge, tailor, glm_agent - docs/, plans/, dev/, .agents/plans/ Repo hygiene: - .gitattributes: LFS now covers .blend, .zprj, .zpac, .obj, .npy and the Reallusion .iAvatar/.ccAvatar/.ccRestore containers. Without this the ~3.8 GB in this commit would land as raw blobs. .png/.jpg are left out on purpose — ~250 are already tracked raw and converting them would rewrite every one without shrinking history. - .gitignore: exclude /accurig/ (~1 GB AccuRig program files, redistributable from Reallusion, nothing authored here) and /dev/null/ (git-lfs hook copies dropped by a `>/dev/null` redirect on Windows). Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
# Stage 6f: fold melt in the crotch box, normal-deviation detector.
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# The mesh has only 3 boundary verts (00_welded closed the slits) — the remaining flap and
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# dotted seam lines are welded CREASES: positions locally smooth, normals kinked. Detect
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# verts whose normal deviates > ANG_THR from the 5-iter smoothed normal field, grow, melt.
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# blender --background --python 06f_fold_melt.py -- <in.blend> <out.blend>
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import bpy, sys, time, math
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import numpy as np
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argv = sys.argv[sys.argv.index("--") + 1:]
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BLEND, OUT = argv[0], argv[1]
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t0 = time.time()
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# optional box override: <bx> <z0> <z1> [ang_deg]
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if len(argv) >= 5:
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BX, BZ0, BZ1 = float(argv[2]), float(argv[3]), float(argv[4])
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ANG_THR = math.radians(float(argv[5])) if len(argv) > 5 else math.radians(15.0)
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else:
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BX, BZ0, BZ1 = 0.075, 0.340, 0.480
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ANG_THR = math.radians(15.0)
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# navel stays: it is a real feature made of exactly the kind of kink this melts
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NAVEL = lambda co: (np.abs(co[:, 0]) < 0.022) & (co[:, 2] > 0.495) & (co[:, 2] < 0.555) & (co[:, 1] < 0)
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BOX = lambda co: (np.abs(co[:, 0]) < BX) & (co[:, 2] > BZ0) & (co[:, 2] < BZ1) & ~NAVEL(co)
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MELT_ITERS = 150
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def log(m):
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print(f"[fold {time.time()-t0:6.1f}s] {m}", flush=True)
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bpy.ops.wm.open_mainfile(filepath=BLEND)
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ob = max([o for o in bpy.data.objects if o.type == 'MESH'],
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key=lambda o: len(o.data.vertices))
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me = ob.data
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n_v = len(me.vertices)
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co = np.empty(n_v * 3)
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me.vertices.foreach_get("co", co)
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co = co.reshape(-1, 3)
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nrm = np.empty(n_v * 3)
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me.vertices.foreach_get("normal", nrm)
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nrm = nrm.reshape(-1, 3)
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n_e = len(me.edges)
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ev = np.empty(n_e * 2, dtype=np.int32)
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me.edges.foreach_get("vertices", ev)
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ev = ev.reshape(-1, 2)
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order = np.concatenate([ev[:, 0], ev[:, 1]])
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nbr = np.concatenate([ev[:, 1], ev[:, 0]])
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srt = np.argsort(order, kind="stable")
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o_s = order[srt]
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n_s = nbr[srt]
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ptr = np.searchsorted(o_s, np.arange(n_v + 1))
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cnt = np.maximum(ptr[1:] - ptr[:-1], 1)
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N = nrm.copy()
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for _ in range(5):
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acc = np.zeros_like(N)
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np.add.at(acc, o_s, N[n_s])
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N = acc / cnt[:, None]
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N /= np.maximum(np.linalg.norm(N, axis=1, keepdims=True), 1e-12)
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dot = np.clip((nrm * N).sum(axis=1), -1.0, 1.0)
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ang = np.arccos(dot)
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box = BOX(co)
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hot = box & (ang > ANG_THR)
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log(f"box {box.sum()}, folds {hot.sum()} (>{math.degrees(ANG_THR):.0f} deg)")
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if hot.sum():
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hc = co[hot]
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log(f"fold cluster: x [{hc[:,0].min():+.4f}..{hc[:,0].max():+.4f}] "
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f"y [{hc[:,1].min():+.4f}..{hc[:,1].max():+.4f}] "
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f"z [{hc[:,2].min():+.4f}..{hc[:,2].max():+.4f}]")
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m = hot.copy()
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for _ in range(3):
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h = m[ev[:, 0]] | m[ev[:, 1]]
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m2 = m.copy()
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m2[ev[:, 0]] |= h
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m2[ev[:, 1]] |= h
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m = m2
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sidx = np.nonzero(m)[0]
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Q = co.copy()
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for _ in range(MELT_ITERS):
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acc = np.zeros_like(Q)
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np.add.at(acc, o_s, Q[n_s])
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mean = acc / cnt[:, None]
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Q[sidx] = 0.5 * Q[sidx] + 0.5 * mean[sidx]
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d = np.linalg.norm(Q - co, axis=1)
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log(f"melted {len(sidx)} fold verts, max move {d.max():.4f}")
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me.vertices.foreach_set("co", Q.reshape(-1))
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me.update()
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if me.has_custom_normals:
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vn = np.empty(n_v * 3, dtype=np.float32)
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me.vertices.foreach_get("normal", vn)
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me.normals_split_custom_set_from_vertices(vn.reshape(-1, 3))
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else:
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log("no folds found")
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bpy.context.preferences.filepaths.save_version = 0 # no .blend1 autosave
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bpy.ops.wm.save_as_mainfile(filepath=OUT)
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log(f"WROTE {OUT}")
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print("FOLD_DONE")
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