addOffset2DTexAttr.py

## -*- coding: utf-8 -*-

import pymel.core as pm


def addOffset2DTexAttr():

    texName = pm.ls(sl=True,type="place2dTexture")

    splitAttr = "Split"
    numAttr   = "Num"
    

    for tex in texName:

        if tex.hasAttr(splitAttr) != True:
            tex.addAttr(splitAttr,k=True,at="long",dv=7)
        if tex.hasAttr(numAttr) != True:
            tex.addAttr(numAttr,k=True,at="long",dv=1)

        #OffsetCommand生成
        expCmd  = "int $texSplit = (int) " + tex.name() + "." + splitAttr + ";\n"
        expCmd += "float $offset = 1.0 / $texSplit;\n"
        expCmd += tex.name() + ".offsetU =  (((" + tex.name() + "." + numAttr + "- 1) % $texSplit) * $offset);\n"
        expCmd += tex.name() + ".offsetV =  ((((int)(" + tex.name() + "." + numAttr +  " - 1) / $texSplit)) * $offset )  * -1;\n"
        print expCmd
        pm.expression(s=expCmd)