Pixyz Studio _ Model Convertor

〇、安装
1.将Neo Workflow复制到PixyzStudioInstallationDirectory/plugins/路径下
2.pipinyin库安装
将pypinyin库复制到PixyzStudioInstallationDirectory/pythonDlls/路径下
3.配置文件修改
在Neo Workflow/plugin.xml中添加/修改presets块配置文件
4.使用
PiXYZ Studio->Plugins->NeoWorkflow->Engine Performance Workflow->
填入[ModelImportPath]字段->Execute
5.功能
a.将ModelImportPath路径下所有指定格式的文件按TessellationSettings、MeshCountList和ExportFileTypeList中的参数组合，并导出
b.ModelSettings参数
DeleteAdditionalMesh:
删除同一虚拟节点下多余生成的额外mesh，判断依据为mesh顶点个数，为安全起见，仅处理含两个子mesh的虚拟节点
ChineseToPinYin：
节点名称中文转拼音，需安装pypinyin库
SetMeshWithParentName：
默认转换后mesh节点名称可能为Burp_x，可通过开启此选项，将mesh节点名称设置为其父节点的名称，并会压缩树
CorrectNodeName：
纠正节点名称，除以下字符和中文，皆视为非法字符，将以””替换，并会将连续””替换为单个”_”
合法字符
“_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789”
CompressTree：
清理一层空节点，同PiXYZ Studio->Scene->Compress Tree
RakeTree：
删除所有虚拟节点，将mesh展平在同一层，同PiXYZ Studio->Scene->Rake Tree

一、说明

1.目前按mesh个数会和指定的mesh个数存在偏差（待优化）
2.贴图需在相应引擎中进行设置，贴图将对渲染和加载时间有严重影响
3.将在相应导入文件的目录中生成输出文件，生成的文件个数为：
导入文件个数×TessellationSettings参数个数×MeshCountList参数个数×ExportFileTypeList
4.文件后缀名说明
LA9G3QA_nnz7956101_asm_0.2_27_146100.fbx
0.2 ：转换精度，数值越大，模型精度越低
27：mesh个数，与meshCount值略有偏差
146100：顶点数
LA9G3QA_nnz7956101_asm_0.2_keepAll_438288.fbx
keepAll：保持原模型所有mesh节点
LA9G3QA_nnz7956101_asm_0.2_one_146094.fbx
one：合并原模型所有mesh节点

二、ModelConvertor

ModelConvertor.py
from pxz import *
from os import listdir
from os.path import isfile, isdir, join, normpath, splitext
import fnmatch
import os
import re
#拼音库
import pypinyin#合法字符
validChar="_ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"#获取目录中指定格式的文件
def getFilesInDirectory(directory,extensions,recursive,joinPath):files = []for f in listdir(directory):fullPath = join(directory,f)if isfile(fullPath):extOk = Falseif extensions:for ext in extensions:if fnmatch.fnmatch(f.upper(),"*." + ext.upper()):extOk = Truebreakif not extOk:continueif extOk:if joinPath:files.append(normpath(fullPath))else:files.append(f)elif recursive and isdir(fullPath):dirFiles = getFilesInDirectory(fullPath,extensions,recursive,joinPath)if not joinPath:tmp = dirFilesdirFiles = []for file in tmp:dirFiles.append(normpath(join(f,file)))files.extend(dirFiles)return files#替换文件后缀
def replaceFileExtension(file,info,newExt):(root,ext) = splitext(file)return root + info+"." + newExt#将mesh名称设置为父节点名称（默认情况下，mesh名称可能为BRep_x）
def setMeshNameWithParentName():parts = scene.getPartOccurrences(1)for part in parts:parent=scene.getParent(part)parentName=core.getProperty(parent,"Name")core.setProperty(part,"Name",parentName)#设置正确的节点名称
def setCorrectNodeName(node):name=core.getProperty(node, "Name")newName=""for char in name:if validChar.find(char)<0 and isChinese(char)==False:newName+=('_')else: newName+=charnewName=re.sub("_+","_",newName)core.setProperty(node,"Name",newName)#字符是否为中文
def isChinese(input):return '\u4e00' <= input <= '\u9fff'def toPinyin(input):output=pypinyin.slug(input,separator=" ").title().replace(" ","")return outputdef setNodeNameToPinyin(node):name=core.getProperty(node, "Name")newName=toPinyin(name)  core.setProperty(node,"Name",newName)#设置中文转拼音
def setChineseToPinyin(parent):for child in scene.getChildren(parent):setNodeNameToPinyin(child)setChineseToPinyin(child)
#纠正节点名称
def correctNodesName(parent):for child in scene.getChildren(parent):setCorrectNodeName(child)correctNodesName(child)
#调用示例
#correctNodesName(scene.getRoot())      #输出配置参数
def debugParameters(modelImportPath,importFileTypeList,modelSettings,tessellationSettings,meshCountList,exportFileTypeList):print(modelImportPath)print(modelSettings)print(tessellationSettings)print(exportFileTypeList)print(meshCountList)print(exportFileTypeList)#获取所有的mesh父节点
def getMeshParentNodes():allParentNodes=[]parts = scene.getPartOccurrences(1)for part in parts:parent=scene.getParent(part)if parent not in allParentNodes:allParentNodes.append(parent)return allParentNodes#删除额外的mesh通过顶点数
def deleteAdditonalMeshByPolygonCount(parent):children=scene.getChildren(parent)if len(children)>2:returnmax=-1additionalNodes=[]childName=core.getProperty(children[0],"Name")for child in children:polygonCount=scene.getPolygonCount([child])if polygonCount>max:max=polygonCountfor   child in children:if scene.getPolygonCount([child])!=max:additionalNodes.append(child)if len(additionalNodes)>1:return
#   for delete in deleteNode:
#       if core.getProperty(delete,"Name")!=childName:
#           deleteNode=[]
#           breakscene.deleteOccurrences(additionalNodes)#删除同一虚拟节点下多余生成的额外mesh，判断依据为mesh顶点个数，为安全起见，仅处理含两个子mesh的虚拟节点
def deleteAdditonalMesh():allParentNodes=getMeshParentNodes()for   parent in allParentNodes:deleteAdditonalMeshByPolygonCount(parent)      #处理模型
def handleModel(modelSettings):if modelSettings.DeleteAddtionalMesh:deleteAdditonalMesh()if modelSettings.ChineseToPinYin:setChineseToPinyin(scene.getRoot())if modelSettings.SetMeshWithParentName:setMeshNameWithParentName() if modelSettings.CorrectNodeName:correctNodesName(scene.getRoot())if modelSettings.CompressTree:scene.compress(scene.getRoot())if modelSettings.RakeTree:scene.rake(scene.getRoot(), False)scene.resetTransform(1, True, False, False)
#   将轴心设置为对象的中心scene.movePivotPointToOccurrenceCenter([1], True)#转换模型
def convertingModel(model,modelSettings,tessellationSettings,meshCountList,fileName,exportFileType,exportFolder):maxSagList=[]for setting in tessellationSettings:maxSagList.append(setting.MaxSag)meshCountArgs=[]for setting in meshCountList:meshCountArgs.append(setting.Count)for    maxSag in maxSagList:for meshCount in meshCountArgs:io.importScene(model)scene.movePivotPointToOccurrenceCenter([1], True)          allOccurrences=scene.getPartOccurrences()algo.tessellate(allOccurrences,maxSag,-1, -1, createFreeEdges = True)handleModel(modelSettings)exportInfo="_"+str(maxSag)+mergeMesh(meshCount)+getVertexesCount()exportPath=(exportFolder+"\\"+fileName+exportInfo+"."+exportFileType)io.exportScene(exportPath)deleteCurrentModelFile()#获取顶点个数
def getVertexesCount():vertexes=0allOccurrences=scene.getPartOccurrences()for occurrence in allOccurrences:vertexes+=scene.getVertexCount([occurrence], False, False, False)return "_"+str(vertexes)#按总的mesh个数合并节点
def mergePartsByCount(allOccurrences,meshCount):if len(allOccurrences)<=meshCount:return "_"+str(len(allOccurrences))groupNumber=math.ceil(len(allOccurrences)/meshCount)   scene.deleteEmptyOccurrences()allOccurrences=scene.getPartOccurrences()    #字典键值计数器index=0#合并字典mergeOccurrences={}#合并计数器number=0for occurrence in   allOccurrences:#setdefault          mergeOccurrences.setdefault(index,[]).append(occurrence)number=number+1if number==groupNumber:index=index+1number=0sorted(mergeOccurrences)
#   len(dict)键的总数if(len(mergeOccurrences)==0):return;for value in mergeOccurrences.values():if len(value)!=0:scene.mergeParts(value,1)meshes=scene.getPartOccurrences()     return "_"+str(len(meshes))#合并mesh
def mergeMesh(meshCount):allOccurrences=scene.getPartOccurrences()if meshCount==-1:return "_keepAll"elif meshCount==1:scene.mergeParts(allOccurrences,1)return "_one"else:return mergePartsByCount(allOccurrences,meshCount)#删除场景中的模型文件
def deleteCurrentModelFile():scene.deleteOccurrences(scene.getPartOccurrences())scene.deleteEmptyOccurrences()#模型转换器
def modelConvertor(modelImportPath,importFileTypeList,modelSettings,tessellationSettings,meshCountList,exportFileTypeList):debugParameters(modelImportPath,importFileTypeList,modelSettings,tessellationSettings,meshCountList,exportFileTypeList)core.removeConsoleVerbose(2)if modelImportPath:importFileExtensions=[]for importFileType in importFileTypeList:importFileExtensions.append(importFileType.Extension)modelFiles=getFilesInDirectory(modelImportPath,importFileExtensions,True,True)exportFileExtensions=[]for exportFileType in exportFileTypeList:exportFileExtensions.append(exportFileType.Extension)for model in modelFiles:
#       print(model)fileName = os.path.split(model)[1].split(".")[0]for  exportFileType in exportFileExtensions:parentFolder=os.path.dirname(str(model))exportFolder=parentFolder+"\\"+fileName+"\\"+exportFileTypeisExists=os.path.exists(exportFolder)if not isExists:os.makedirs(exportFolder)convertingModel(model,modelSettings,tessellationSettings,meshCountList,fileName,exportFileType,exportFolder)

<?xml version="1.0" encoding="utf-8" ?>
<module name="NeoWorkflow"><include module="IO"/><decltype name="FileType"><struct><field name="Extension"type="String"value="None"/></struct></decltype><decltype name="ModelSettings"><struct><field name="DeleteAddtionalMesh"type="Bool"default="False"></field><field name="ChineseToPinYin"type="Bool"default="False"></field><field name="SetMeshWithParentName"type="Bool"default="False"></field><field name="CorrectNodeName"type="Bool"default="False"></field><field name="CompressTree"type="Bool"default="False"></field><field name="RakeTree"type="Bool"default="False"></field></struct></decltype><decltype name="TessellationQuality"><struct><field name="MaxSag"type="Distance"default="0.2"></field></struct></decltype><decltype name="TessellationQualityList"><list type ="TessellationQuality"/></decltype><decltype name="ImportFileTypeList"><list type="FileType"></list></decltype><decltype name="ExportFileTypeList"><list type="FileType"></list></decltype><decltype name="MeshCount"><struct><field name="Count"type="Int"default="-1"/></struct></decltype><decltype name="MeshCountList"><list type="MeshCount"></list></decltype><function name="modelConvertor"scriptFile="ModelConvertor.py"><parameters group="Parameters"><parameter name="ModelImportPath"type="String"></parameter><parameter name="ImportFileTypeList"type="ImportFileTypeList"description=""></parameter><parameter name="ModelSettings"type="ModelSettings"></parameter><parameter name="TessellationSettings"type="TessellationQualityList"></parameter><parameter name="MeshCountList"type="MeshCountList"></parameter><parameter name="ExportFileTypeList"type="ExportFileTypeList"description=""></parameter></parameters><presets default="PerformanceTest"><preset name="PerformanceTest"><Parameter name="ImportFileTypeList">[pxz.neoworkflow.FileType("step"), pxz.neoworkflow.FileType("stp"),pxz.neoworkflow.FileType("x_t")]</Parameter><Parameter name="ModelSettings">pxz.neoworkflow.ModelSettings(True, True, True, True,True,True)</Parameter><Parameter name="TessellationSettings">[pxz.neoworkflow.TessellationQuality(0.2), pxz.neoworkflow.TessellationQuality(0.5),pxz.neoworkflow.TessellationQuality(1.0)]</Parameter><Parameter name="MeshCountList">[pxz.neoworkflow.MeshCount(-1), pxz.neoworkflow.MeshCount(1), pxz.neoworkflow.MeshCount(1000), pxz.neoworkflow.MeshCount(2000), pxz.neoworkflow.MeshCount(3000)]</Parameter><Parameter name="ExportFileTypeList">[pxz.neoworkflow.FileType("fbx"), pxz.neoworkflow.FileType("glb")]</Parameter></preset><preset name="NeoSettings"><Parameter name="ImportFileTypeList">[pxz.neoworkflow.FileType("step"), pxz.neoworkflow.FileType("stp"),pxz.neoworkflow.FileType("x_t")]</Parameter><Parameter name="ModelSettings">pxz.neoworkflow.ModelSettings(True, True, True, True,True,False)</Parameter><Parameter name="TessellationSettings">[pxz.neoworkflow.TessellationQuality(0.2)]</Parameter><Parameter name="MeshCountList">[pxz.neoworkflow.MeshCount(-1)]</Parameter><Parameter name="ExportFileTypeList">[pxz.neoworkflow.FileType("fbx")]</Parameter></preset></presets></function>
</module>

二、Python
1.获取制定路径下所有文件
2.字符串拼接
3.中文字符判定

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