我正在尝试获取我之前在代码中添加的文件纹理,并将其添加到maya中的选定网格中。我对python和脚本编写起来很陌生,现在我已经苦苦挣扎了几天,所以我的代码可能很乱。
import maya.cmds as cmds
from os import listdir
class TextureImport():
def __init__(self):
if cmds.window(TextureImport, q=True, exists=True):
cmds.deleteUI(TextureImport)
GUI=cmds.window(title="Texture Import Tool", widthHeight=(250,160), s=True, tlb=True)
cmds.rowColumnLayout(numberOfColumns=1, columnAlign=(1, 'center'), columnAttach=(1, 'both', 0), cw=(1,250))
cmds.button(label="Select Directory", command=self.select_dir)
cmds.separator(style='in', h=20)
cmds.optionMenu('optionMenu', label="File List")
cmds.button(label="Clear List", command=self.clear_list)
cmds.separator(style='in', h=20)
cmds.text('Select your object, then:', h=25)
cmds.button(label="Apply Texture", command=self.apply_texture)
cmds.setParent('..')
cmds.showWindow()
def select_dir(self, *args):
basicFilter = "Image Files (*.jpg *.jpeg *.tga *.png *.tiff *.bmp *.psd)"
self.myDir = cmds.fileDialog2 (fileFilter=basicFilter, dialogStyle=2, fm=3)
myFiles = listdir(self.myDir[0])
for items in myFiles:
fileEndings = ('.psd','.PSD','.jpg','JPG','.jpeg','.JPEG','.tga','.TGA','.png','.PNG','.tiff','.TIFF','.bmp','.BMP')
if items.endswith(fileEndings):
cmds.menuItem(items)
else:
cmds.warning(items + 'This is not a valid image type, you fool.')
print myFiles
def clear_list(self, *args):
fileList = cmds.optionMenu('optionMenu', q=True, itemListLong=True)
if fileList:
cmds.deleteUI(fileList)
def apply_texture(self, *args):
object = cmds.ls(sl=True)
selectedMenuItem = cmds.optionMenu('optionMenu', q=True, value=True)
cmds.sets(name='imageMaterialGroup', renderable=True, empty=True)
shaderNode = cmds.shadingNode('phong', name='shaderNode', asShader=True)
fileNode = cmds.shadingNode('file', name='fileTexture', asTexture=True)
cmds.setAttr('fileTexture'+'.fileTextureName', self.myDir[0]+'/'+selectedMenuItem, type="string")
shadingGroup = cmds.sets(name='textureMaterialGroup', renderable=True, empty=True)
cmds.connectAttr('shaderNode'+'.outColor','textureMaterialGroup'+'.surfaceShader')
cmds.connectAttr('fileTexture'+'.outColor','shaderNode'+'.color')
cmds.surfaceShaderList('shaderNode', add='imageMaterialGroup')
cmds.sets(object, e=True, forceElement='imageMaterialGroup')
TextureImport()
当我尝试使用最后一个按钮时,问题就出现了。它抛出错误:
错误:'textureMaterialGroup.surfaceShader'已经有来自'lambert1.outColor'的传入连接。 Traceback(最近一次调用最后一次): 在apply_texture中输入第52行文件“” RuntimeError:'textureMaterialGroup.surfaceShader'已经有来自'lambert1.outColor'的传入连接。
我不确定朗伯与它有什么关系,因为它根本不考虑我的代码。有什么想法吗?
答案 0 :(得分:5)
你已经有了连接,所以如果要强制连接,你需要像这样添加force
参数:
cmds.connectAttr('shaderNode'+'.outColor','textureMaterialGroup'+'.surfaceShader', force=True)
cmds.connectAttr('fileTexture'+'.outColor','shaderNode'+'.color', force=True)
来自connectAttr docs,force
:
强制连接。如果目的地已经连接,则 旧连接断了,新连接坏了。