64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
"""QR 桥纯逻辑：引擎发现、面数换算、settings 生成、progress 解析。不 import bpy。
|
||
减面可选后端 Quad Remesher 用——headless 直接调 Engine/xremesh.exe，绕开 modal 操作符。"""
|
||
import glob
|
||
import os
|
||
|
||
QR_TIMEOUT = 120.0 # 引擎轮询超时（秒）
|
||
|
||
|
||
def find_qr_engine():
|
||
"""定位 QuadRemesher 的 xremesh.exe；找不到返回 None。
|
||
顺序：QR_ENGINE 环境变量 -> 标准 addon 路径（取最高 Blender 版本目录）。"""
|
||
env = os.environ.get("QR_ENGINE")
|
||
if env and os.path.isfile(env):
|
||
return env
|
||
appdata = os.environ.get("APPDATA")
|
||
if not appdata:
|
||
return None
|
||
pattern = os.path.join(
|
||
appdata, "Blender Foundation", "Blender", "*",
|
||
"scripts", "addons", "QuadRemesher", "Engine", "xremesh.exe")
|
||
hits = sorted(glob.glob(pattern))
|
||
return hits[-1] if hits else None
|
||
|
||
|
||
def tris_to_target_quads(tris):
|
||
"""三角面数换算 QR 目标四边形数：1 quad ≈ 2 tris，至少 1。"""
|
||
return max(1, int(tris) // 2)
|
||
|
||
|
||
def build_settings(in_fbx, out_fbx, prog, target_quads,
|
||
adaptive=50, exact=False, hard_edges=True):
|
||
"""生成 RetopoSettings.txt 文本（xremesh.exe -s 读取）。"""
|
||
lines = [
|
||
"HostApp=Blender",
|
||
'FileIn="%s"' % in_fbx,
|
||
'FileOut="%s"' % out_fbx,
|
||
'ProgressFile="%s"' % prog,
|
||
"TargetQuadCount=%d" % target_quads,
|
||
"CurvatureAdaptivness=%d" % adaptive,
|
||
"ExactQuadCount=%d" % (1 if exact else 0),
|
||
"UseVertexColorMap=False",
|
||
"UseMaterialIds=0",
|
||
"UseIndexedNormals=0",
|
||
"AutoDetectHardEdges=%d" % (1 if hard_edges else 0),
|
||
]
|
||
return "\n".join(lines) + "\n"
|
||
|
||
|
||
def parse_progress(text):
|
||
"""解析 progress.txt -> (state, msg)。
|
||
首行 '2'=success；<0=error（次行为文本）；空/分数/非法=running。"""
|
||
lines = text.splitlines()
|
||
if not lines:
|
||
return ("running", "")
|
||
try:
|
||
v = float(lines[0])
|
||
except ValueError:
|
||
return ("running", "")
|
||
if v == 2:
|
||
return ("success", "")
|
||
if v < 0:
|
||
return ("error", lines[1] if len(lines) > 1 else "")
|
||
return ("running", "")
|