ud18010andClaude Opus 4.8
b8eb40f3e4
真机验证发现 ExactQuadCount=0 自适应在高细节硬表面模型上面数暴涨 (well1500 目标2500->11500 quads)并连带 seam 展开重叠爆炸;改用 exact=True 尊重目标数后 well1500 得 5940 面/591 UV岛(优于 collapse 745)。 find_qr_engine 改为权威覆盖:QR_ENGINE 无效即 None,不再静默自动发现, 使强制回退可测、覆盖契约成立。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
65 lines
2.3 KiB
Python
65 lines
2.3 KiB
Python
"""QR 桥纯逻辑：引擎发现、面数换算、settings 生成、progress 解析。不 import bpy。
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减面可选后端 Quad Remesher 用——headless 直接调 Engine/xremesh.exe，绕开 modal 操作符。"""
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import glob
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import os
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QR_TIMEOUT = 120.0 # 引擎轮询超时（秒）
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def find_qr_engine():
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"""定位 QuadRemesher 的 xremesh.exe；找不到返回 None。
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顺序：QR_ENGINE 环境变量（权威：显式设了就以它为准，无效即 None，不再自动发现）
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-> 标准 addon 路径（取字典序最大目录，当前 Blender 5.x 下即最高版本）。"""
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env = os.environ.get("QR_ENGINE")
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if env:
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return env if os.path.isfile(env) else None
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appdata = os.environ.get("APPDATA")
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if not appdata:
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return None
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pattern = os.path.join(
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appdata, "Blender Foundation", "Blender", "*",
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"scripts", "addons", "QuadRemesher", "Engine", "xremesh.exe")
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hits = sorted(glob.glob(pattern))
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return hits[-1] if hits else None
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def tris_to_target_quads(tris):
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"""三角面数换算 QR 目标四边形数：1 quad ≈ 2 tris，至少 1。"""
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return max(1, int(tris) // 2)
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def build_settings(in_fbx, out_fbx, prog, target_quads,
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adaptive=50, exact=False, hard_edges=True):
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"""生成 RetopoSettings.txt 文本（xremesh.exe -s 读取）。"""
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lines = [
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"HostApp=Blender",
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'FileIn="%s"' % in_fbx,
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'FileOut="%s"' % out_fbx,
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'ProgressFile="%s"' % prog,
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"TargetQuadCount=%d" % target_quads,
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"CurvatureAdaptivness=%d" % adaptive,
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"ExactQuadCount=%d" % (1 if exact else 0),
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"UseVertexColorMap=False",
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"UseMaterialIds=0",
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"UseIndexedNormals=0",
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"AutoDetectHardEdges=%d" % (1 if hard_edges else 0),
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]
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return "\n".join(lines) + "\n"
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def parse_progress(text):
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"""解析 progress.txt -> (state, msg)。
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首行 '2'=success；<0=error（次行为文本）；空/分数/非法=running。"""
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lines = text.splitlines()
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if not lines:
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return ("running", "")
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try:
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v = float(lines[0])
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except ValueError:
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return ("running", "")
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if v == 2:
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return ("success", "")
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if v < 0:
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return ("error", lines[1] if len(lines) > 1 else "")
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return ("running", "")
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