快速切換 Maya 背景顏色

快速鍵 : Alt+b

檢查模型的 topology 是否對等 (polyCompare check topology match)

檢查模型的 topology 是否對等 (能不能拿來做 blendshape 等等)

	import maya.cmds as mc
	from maya.api.OpenMaya import MGlobal
	sel = mc.ls(sl=1)
	ret = mc.polyCompare(sel,v=1,e=1,fd=1)
	if ret != 0:
	MGlobal.displayInfo("geos NOT match!")
	else:
	MGlobal.displayInfo("geos match!")

view raw compareGeoTopology.py hosted with ❤ by GitHub

如何在 import 檔案之前執行一段程式 (How to run a callback before importing scene file)

今天看到 google group 上的一個 thread,關於如何在 maya import 一個檔案之前執行程式 (可以用來做一些 preprocessing, 例如檢查檔案路徑等等)。就先把它貼在這當筆記吧。

	'''
	source : https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/python_inside_maya/rpO70NI1jc0/I10eDlxZCQAJ
	'''
	import maya.OpenMaya as om
	def catchFileImport(ret, fileObj, *args):
	print "Importing:", fileObj.resolvedFullName()
	om.MScriptUtil.setBool(ret, True)
	mid = om.MSceneMessage.addCheckFileCallback(om.MSceneMessage.kBeforeImportCheck, catchFileImport)

view raw callbackOnImport.py hosted with ❤ by GitHub

取得 Maya 版本的 MEL 指令 (MEL command to get Maya version as float)

MEL:

getApplicationVersionAsFloat;

Pymel:

import pymel.core as pm
pm.mel.getApplicationVersionAsFloat()
# 2016.0

如何把一個 transform 裡存在多個 shapes 的物件獨立出來 (how to separate multiple shapes inside one transform node)

有些工具或外掛會產生出向這種一個 transform 裡存在多個 shapes 的物件。這可能是為了效能關係或其他因素，不過就可能會造成其他一些軟體，工具，或 renderer 無法正常運作。

以下這段小程式可以幫你把這些shapes 拆成"正常"獨立的物件。

	import maya.cmds as mc
	import pymel.core as pm
	def separateShapes(grp=None):
	grp = grp or mc.ls(sl=1)[0]
	SUFFIX = "_separated_geo"
	def getUniqueName(name):
	newName = name
	idx = 1
	while True:
	if not mc.objExists(newName):
	break
	else:
	newName = "{0}_{1}".format(name,idx)
	idx+=1
	return newName
	def getAwesomeName(shapeName):
	name = str(shapeName).split('|')[-1].split(':')[-1].split('.')[0]
	name = name + SUFFIX
	return getUniqueName(name)
	shapes = mc.ls(grp,dag=1,ni=1,shapes=1)
	newTrs = []
	with pm.UndoChunk():
	for eachShape in shapes:
	newName = getAwesomeName(eachShape)
	newTr = mc.createNode("transform", name=newName)
	mc.parent(eachShape, newTr, shape=True, r=True)
	newTrs.append(newTr)
	return newTrs
	separateShapes()

view raw separateShapes.py hosted with ❤ by GitHub