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其实这些代码大部分是从 chatgpt 中生成的。

骨骼命名

import maya.cmds as cmdsdef rename_bones():selected_bones = cmds.ls(type="joint")  # 获取选中的骨骼for bone in selected_bones:if "_" in bone:new_name = bone.split("_")[0]  # 获取下划线前面的部分作为新的骨骼名称cmds.rename(bone, new_name)  # 重命名骨骼rename_bones()

层级 rename

import maya.cmds as cmdsdef rename_bones_with_suffix(bone, suffix):children = cmds.listRelatives(bone, children=True, type="joint") or []  # 获取骨骼的子骨骼for child in children:rename_bones_with_suffix(child, suffix)  # 递归调用，处理子骨骼new_name = bone + suffix  # 添加结尾字符串cmds.rename(bone, new_name)  # 重命名骨骼print("将骨骼 {} 重命名为 {}".format(bone, new_name))selected_bones = cmds.ls(selection=True, type="joint")  # 获取选中的骨骼for bone in selected_bones:rename_bones_with_suffix(bone, "_R")

属性赋值

左手旋转复制到右手上

import maya.cmds as cmdsdef flip_z_rotation(source_bone, target_bone):# 获取源骨骼的旋转值source_rotation = cmds.getAttr(source_bone + ".rotate")[0]# 翻转旋转值的Z轴flipped_rotation = [source_rotation[0], source_rotation[1], -source_rotation[2]]# 将翻转后的旋转值赋值给目标骨骼cmds.setAttr(target_bone + ".rotate", flipped_rotation[0], flipped_rotation[1], flipped_rotation[2], type="double3")print("将骨骼 {} 的旋转值翻转并赋值到骨骼 {}".format(source_bone, target_bone))all_bones = cmds.ls(type="joint")  # 获取所有骨骼for bone in all_bones:if "_L" in bone:# 替换"_L"为"_R"的骨骼target_bone = bone.replace("_L", "_R")# 检查替换后的骨骼是否存在if cmds.objExists(target_bone):flip_z_rotation(bone, target_bone)

控制台调用批量处理

自己的批量处理框架

# -*- coding: utf-8 -*-import os
import json
import math
import errno
import numpy as np    import maya.cmds as cmds
import pymel.core as pm
import pymel.core.nodetypes as nt
import pymel.core.datatypes as dtfrom maya import mel def SetFPS(fps):unit = 'ntscf'if fps == 15:unit = 'game'elif fps == 24:unit = 'film'elif fps == 25:unit = 'pal'elif fps == 30:unit = 'ntsc'elif fps == 48:unit = 'show'elif fps == 50:unit = 'palf'elif fps == 60:unit = 'ntscf'else:unit = str(fps)+'fps'cmds.currentUnit( time=unit )fps = mel.eval('currentTimeUnitToFPS')# 等价的#mel.eval("currentUnit -time ntsc;")return fpsclass Cls_get_pure_bone:def __init__(self, bones, dstRoot=None, fps=30):self.use_joints = bonesself.dstRoot = dstRootself.fps = fps    def setup(self):cmds.file(new=True, force=True)if self.fps == 30:mel.eval("currentUnit -time ntsc;")self._import_fps = Falseelse:SetFPS(self.fps)self._import_fps = False#self._import_fps = Truedef run(self, animFbx, outFn, targetOnly=True):# import source animationpm.importFile(animFbx, type='FBX',importFrameRate=self._import_fps,importTimeRange='override')startFrame = pm.playbackOptions(animationStartTime=True, q=True)endFrame   = pm.playbackOptions(animationEndTime=True, q=True)def string_array_contains(array, string):for item in array:if item == string:return True  # 包含指定字符串return False  # 不包含指定字符串all_joints=cmds.ls(type="joint")# 遍历所有骨骼for joint in all_joints:# 检查当前骨骼是否在给定的骨骼列表中if not string_array_contains(self.use_joints, joint):# 检查当前骨骼是否在给, joint):# 删除不在列表中的骨骼if cmds.objExists(joint):print("删除骨骼 " + joint)cmds.delete(joint)else:print("骨骼 " + joint + " 不存在")pm.playbackOptions(animationStartTime=startFrame, e=True)pm.playbackOptions(minTime=startFrame, e=True)pm.playbackOptions(animationEndTime=endFrame, e=True)pm.playbackOptions(maxTime=endFrame, e=True)# export retargeted animif targetOnly:pm.select(self.dstRoot)pm.exportSelected(outFn, type='FBX export', force=True)else:pm.exportAll(outFn, type='FBX export', force=True) return outFn  if __name__ == '__main__':import argparseparser = argparse.ArgumentParser()parser.add_argument('--inputAnimFile', type=str, default=None, help='Input Anim Fbx')parser.add_argument('--inputFolder', type=str, default=None, help='Input Fbx Directory, batch mode')parser.add_argument('--outputFolder', type=str, default=None, help='Output Fbx Directory')parser.add_argument('--resume', action='store_true', help='skip exist or redo')parser.add_argument('--targetOnly', action='store_true', help='only keep target char')parser.add_argument('--dstRoot', type=str, default='')parser.add_argument('--fps', type=int, default=30)args = parser.parse_args()file_path = "scripts/data/coco_bone.txt"# 打开文件with open(file_path, "r") as file:# 按行读取文件内容bones = [ e.strip() for e in file.readlines() ]# list input filesif args.inputFolder is None:inputFiles = [args.inputAnimFile]inputFolder = os.path.dirname(args.inputAnimFile)else:from pathlib import Pathif not os.path.isdir(args.inputFolder):# regex pattern in argpattern = os.path.basename(args.inputFolder)inputFolder = os.path.dirname(args.inputFolder)else:# directoryinputFolder = args.inputFolder# pattern = r'**/*_anim.fbx'pattern = r'**/*.fbx'inputFiles = sorted([str(f) for f in Path(r'{0}'.format(inputFolder)).glob(pattern)])if args.outputFolder is None:outputFolder = inputFolderelse:outputFolder = args.outputFoldercls = Cls_get_pure_bone(bones,dstRoot=args.dstRoot,fps=args.fps)cls.setup()for inputFile in inputFiles:relpath  = os.path.relpath(os.path.dirname(inputFile), inputFolder)        fout  = os.path.join(outputFolder, relpath) + f"/{os.path.basename(inputFile)}"ddir=fout.rsplit("/",1)[0]if not os.path.exists(ddir):os.makedirs(ddir)print('-- work on file: {0}'.format(inputFile))if args.resume and os.path.exists(fout):print('-- skip {0}'.format(inputFile))continuecls.run(inputFile, fout)

调用方式

@echo off
setlocalrem "C:\Program Files\Autodesk\Maya2022\bin\mayapy.exe" /path/get_pure_bone.py ^--inputFolder  \path\fbx_org ^--dstRoot DeformationSystem ^--outputFolder \path\fbx_org_clear ^--targetOnly --fps 30