93 lines
3.2 KiB
Python
93 lines
3.2 KiB
Python
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# Diagnose the inter-thigh residue below the crotch snap window.
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# blender --background --python dbg_gusset.py -- <blend> <outdir>
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import bpy, sys, math, os
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import numpy as np
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from mathutils import Vector, Euler
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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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os.makedirs(OUT, exist_ok=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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# numeric: midline strip profile — for each z slice near the crotch, front-most and
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# back-most y, and the x extent of geometry in the inter-thigh gap
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print("== midline (|x|<0.01) y-range per z slice ==")
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for z0 in np.arange(0.34, 0.50, 0.01):
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m = (np.abs(co[:, 0]) < 0.01) & (co[:, 2] >= z0) & (co[:, 2] < z0 + 0.01)
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if m.sum() == 0:
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print(f" z {z0:.2f}: EMPTY")
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continue
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ys = co[m, 1]
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print(f" z {z0:.2f}: n={m.sum():5d} y [{ys.min():+.4f} .. {ys.max():+.4f}]")
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print("== inter-thigh occupancy: verts with |x|<0.06 per z slice ==")
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for z0 in np.arange(0.30, 0.46, 0.01):
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m = (np.abs(co[:, 0]) < 0.06) & (co[:, 2] >= z0) & (co[:, 2] < z0 + 0.01)
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print(f" z {z0:.2f}: n={m.sum():5d}", end="")
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if m.sum():
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print(f" x [{co[m,0].min():+.4f}..{co[m,0].max():+.4f}]"
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f" y [{co[m,1].min():+.4f}..{co[m,1].max():+.4f}]")
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else:
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print()
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# renders: clay, shadowless, tight on the crotch — front, and from below looking up
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for o in list(bpy.data.objects):
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if o.type in ('LIGHT', 'CAMERA'):
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bpy.data.objects.remove(o, do_unlink=True)
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sc = bpy.context.scene
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sc.render.engine = 'BLENDER_EEVEE'
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sc.render.resolution_x = sc.render.resolution_y = 1000
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sc.render.film_transparent = False
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wd = bpy.data.worlds.new("w")
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wd.use_nodes = True
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wd.node_tree.nodes["Background"].inputs[0].default_value = (0.18, 0.18, 0.18, 1)
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sc.world = wd
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mat = bpy.data.materials.new("clay")
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mat.use_nodes = True
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b = mat.node_tree.nodes["Principled BSDF"]
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b.inputs["Base Color"].default_value = (0.8, 0.8, 0.8, 1)
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b.inputs["Roughness"].default_value = 0.6
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ob.data.materials.clear()
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ob.data.materials.append(mat)
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def sun(rot, e):
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ld = bpy.data.lights.new("s", 'SUN')
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ld.energy = e
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ld.use_shadow = False
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lo = bpy.data.objects.new("s", ld)
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lo.rotation_euler = rot
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bpy.context.collection.objects.link(lo)
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sun(Euler((math.radians(60), 0, math.radians(-30))), 3.0)
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sun(Euler((math.radians(120), 0, math.radians(150))), 1.2)
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cam = bpy.data.cameras.new("c")
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cam.lens = 85
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cob = bpy.data.objects.new("c", cam)
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bpy.context.collection.objects.link(cob)
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sc.camera = cob
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views = [
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# (name, location, rotation) — model front = -Y
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("front_tight", Vector((0.0, -0.55, 0.41)), Euler((math.radians(90), 0, 0))),
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("below_up", Vector((0.0, -0.30, 0.05)), Euler((math.radians(50), 0, 0))),
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("side_gap", Vector((-0.45, -0.35, 0.40)), Euler((math.radians(88), 0, math.radians(-52)))),
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]
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for name, loc, rot in views:
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cob.location = loc
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cob.rotation_euler = rot
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sc.render.filepath = os.path.join(OUT, f"{name}.png")
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bpy.ops.render.render(write_still=True)
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print(f"rendered {name}")
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print("DBG_DONE")
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