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textureSwitch.py
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textureSwitch.py
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# Colorize Tool by Timothy Halim
# 15 June 2021
#
# This tool will disconnect all texture and replace it with constant,
# and store the connection data in a json file that can be used to restore it later
#
# Install:
# - Copy and paste content to maya script editor, and run it from there
# - Or use type "execfile('[path to this file]')" in script editor and run it
#
# Usage:
# - Get Selected Objects : This button will search all of the texture used for selected objects
# and store the connections in a json file,
# if nothing is selected then it will search all mesh in scene
# - Check Descendants : Enabling this, will search all of texture used for all of selected object descendants
# - Colorize : Will disconnect textures and replace it with constant color in the attribute
# - Restore : Will restore the connections stored in json file
import os
import json
import traceback
from PySide2.QtWidgets import QApplication, QDialog, QVBoxLayout, QPushButton, QCheckBox, QListWidget, QProgressBar
import pymel.core as pm
def undoOn(function):
def funcCall(*args,**kwargs):
result = None
try:
name = function.__name__
pm.undoInfo(openChunk=True, chunkName=name)
result = function( *args,**kwargs )
except Exception as e:
print(traceback.format_exc())
pm.displayError( "Error : %s" %e )
finally:
pm.undoInfo(closeChunk=True)
return result
return funcCall
class ColorizeTool(QDialog):
def __init__(self):
super(ColorizeTool, self).__init__(self.getAppWindow())
self.closeExistingDialog()
self.setWindowTitle("Colorize Tool")
self.setObjectName(self.__class__.__name__)
self.buildUI()
self.connectSignal()
self.initUI()
def getAppWindow(self):
for w in QApplication.topLevelWidgets():
if w.objectName() == 'MayaWindow':
return w
def closeExistingDialog(self):
childWidgets = self.parent().findChildren(QDialog)
for w in childWidgets:
try:
if w.objectName() == self.__class__.__name__:
if w.isVisible():
w.close()
except:
pass
def buildUI(self):
self.masterLayout = QVBoxLayout(self)
self.getObjectButton = QPushButton("Get Selected Objects")
self.checkHierarchy = QCheckBox("Check Descendants")
self.checkDominant = QCheckBox("Get Dominant Color (slow)")
self.progressBar = QProgressBar()
self.objectListWidget = QListWidget()
self.colorizeButton = QPushButton("Colorize")
self.restoreButton = QPushButton("Restore")
self.deleteButton = QPushButton("Delete Json")
for w in (self.getObjectButton, self.progressBar, self.checkHierarchy, self.checkDominant,
self.objectListWidget, self.colorizeButton, self.restoreButton, self.deleteButton):
self.masterLayout.addWidget(w)
def connectSignal(self):
self.getObjectButton.clicked.connect(self.getSelectedMesh)
self.colorizeButton.clicked.connect(self.colorize)
self.restoreButton.clicked.connect(self.restore)
self.deleteButton.clicked.connect(self.delete)
def initUI(self):
self.checkHierarchy.setChecked(True)
self.checkDominant.setVisible(int(pm.about(version=True)) > 2017)
self.progressBar.setVisible(False)
self.checkJson()
if os.path.isfile(self.getJsonFile()):
with open(self.getJsonFile(), "r+") as f:
self.shaderData = json.load(f)
self.meshes = []
for k, v in self.shaderData.items():
self.meshes += pm.ls(v['objects'])
self.meshes = sorted(set(self.meshes))
self.objectListWidget.clear()
self.objectListWidget.addItems([m.name() for m in self.meshes])
def getJsonFile(self):
currentFile = pm.system.sceneName()
currentDir = os.path.dirname(currentFile)
outputName = '.'.join(os.path.basename(currentFile).split('.')[:-1]) + ".json"
outputFile = os.path.join(currentDir,outputName).replace("\\", "/")
return outputFile
def checkJson(self):
jsonExist = os.path.isfile(self.getJsonFile())
self.colorizeButton.setEnabled(jsonExist)
self.restoreButton.setEnabled(jsonExist)
self.deleteButton.setEnabled(jsonExist)
def getSelectedMesh(self):
self.objectListWidget.clear()
selection = pm.ls(sl=True)
if selection:
self.meshes = []
for o in selection:
shape = o.getShape() if hasattr(o, 'getShape') else None
if shape and shape.nodeType() == 'mesh':
self.meshes.append(o)
if self.checkHierarchy.isChecked():
childs = pm.listRelatives(o, ad=True)
for child in childs:
shape = child.getShape() if hasattr(child, 'getShape') else child
if shape and shape.nodeType() == 'mesh':
self.meshes.append(child.getTransform())
else:
self.meshes = [shape.getTransform() for shape in pm.ls(type='mesh')]
self.meshes = sorted(set(self.meshes), key = lambda k : k.name())
self.objectListWidget.addItems([m.name() for m in self.meshes])
self.processData()
@undoOn
def processData(self):
self.shaderData = {}
shadingGroup = []
processed = 0
self.getObjectButton.setVisible(False)
self.progressBar.setVisible(True)
self.progressBar.reset()
selection = pm.ls(sl=1)
for obj in self.meshes:
shadingEngines = pm.listConnections(obj.getShape(), type='shadingEngine')
if not shadingEngines:
continue
objShadingGroup = shadingEngines[0]
if objShadingGroup not in shadingGroup:
shadingGroup.append(objShadingGroup)
currentData = self.shaderData.get(objShadingGroup.name(), {'objects':[]})
currentData['objects'] += [obj.name()]
self.shaderData[objShadingGroup.name()] = currentData
for sg in shadingGroup:
currentData = self.shaderData[sg.name()]
textureData = currentData.get('textures', [])
colorData = currentData.get('colors', [])
sgConnections = pm.listHistory(sg)
sgTextures = pm.ls(sgConnections, textures=True)
sgShaders = pm.ls(sgConnections, materials=True)
if self.checkDominant.isChecked():
totalArea = 0
weightInfo = []
for o in currentData['objects']:
processed += 1
self.progressBar.setValue(float(processed)/len(self.meshes) * 100)
faceCount = pm.polyEvaluate(o, f=True)
for faceId in range(faceCount):
face = "%s.f[%d]" %(o, faceId)
pm.select(face)
area = pm.polyEvaluate(face, faceArea=True)[0]
bb = pm.polyEvaluate(boundingBoxComponent2d=True)
totalArea += area
x, y = ((bb[0][0]+bb[1][0])/2, (bb[0][1]+bb[1][1])/2)
weightInfo.append([area, x, y])
for texture in sgTextures:
connections = pm.listConnections(texture, connections=True, destination=True, plugs=True)
for connection in connections:
source = connection[0]
destination = connection[1]
if destination.node() in sgShaders:
sdCon = (source.name(), destination.name())
if sdCon not in textureData:
rgba = [0,0,0,0]
if self.checkDominant.isChecked():
for area, x, y in weightInfo:
r,g,b,a = pm.colorAtPoint(source, o='RGBA', u=x, v=y)
weight = area/totalArea
rgba[0] += r*weight
rgba[1] += g*weight
rgba[2] += b*weight
rgba[3] += a*weight
else:
processed += 1
self.progressBar.setValue(float(processed)/len(shadingGroup) * 100)
maxSample = 10
for u in range(maxSample):
for v in range(maxSample):
x = float(u)/maxSample
y = float(v)/maxSample
total = maxSample*maxSample
r,g,b,a = pm.colorAtPoint(source, o='RGBA', u=x, v=y)
rgba[0] += r/total
rgba[1] += g/total
rgba[2] += b/total
rgba[3] += a/total
colorData += [(source.name(), rgba)]
textureData += [sdCon]
currentData['textures'] = textureData
currentData['colors'] = colorData
pm.select(selection)
if self.shaderData:
jsonOutput = self.getJsonFile()
with open(jsonOutput, "w+") as f:
f.write(json.dumps(self.shaderData, indent=4))
self.checkJson()
self.progressBar.reset()
self.progressBar.setVisible(False)
self.getObjectButton.setVisible(True)
@undoOn
def colorize(self):
jsonOutput = self.getJsonFile()
if os.path.isfile(jsonOutput):
with open(jsonOutput, "r+") as f:
self.shaderData = json.load(f)
for k, v in self.shaderData.items():
for i in v['textures']:
rgba = next((c[1] for c in v['colors'] if c[0] == i[0]), None)
if rgba:
# pump up saturation
saturation = .8
iMax = rgba.index(max(rgba[0:3]))
iMin = rgba.index(min(rgba[0:3]))
if iMax != iMin:
iMid = next((i for i in range(3) if i != iMax and i != iMin), 0)
ratio = (rgba[iMax] - rgba[iMin])/rgba[iMax]
rgba[iMax] = rgba[iMax]
rgba[iMin] = rgba[iMin] * (1-saturation)
newRatio = (rgba[iMax] - rgba[iMin])/rgba[iMax]
rgba[iMid] = rgba[iMid] * ((1-saturation)-(ratio-newRatio))
if pm.connectionInfo( i[0], isSource=True):
destinations = pm.connectionInfo(i[0], destinationFromSource=True)
if destinations[0] == i[1]:
pm.disconnectAttr(i[0], destination=i[1])
pm.setAttr(i[1], rgba[0], rgba[1], rgba[2], type='double3')
else:
raise Exception(jsonOutput +" is missing")
@undoOn
def restore(self):
jsonOutput = self.getJsonFile()
if os.path.isfile(jsonOutput):
with open(jsonOutput, "r+") as f:
self.shaderData = json.load(f)
for k, v in self.shaderData.items():
for i in v['textures']:
if not pm.isConnected(i[0], i[1]):
pm.connectAttr(i[0], i[1], force=True)
else:
raise Exception(jsonOutput +" is missing")
def delete(self):
try:
self.restore()
except:
pass
jsonOutput = self.getJsonFile()
if os.path.isfile(jsonOutput):
os.remove(jsonOutput)
self.checkJson()
else:
raise Exception(jsonOutput +" is missing")
w = ColorizeTool()
w.show()