Hello, animator here. I really can't figure out this problem for several
weeks so hopefully someone can help me.
I am trying to get a worldMatrix of a controller at different frames
WITHOUT moving in the timeline. I am using getAttr() with the time argument
but it gives me wrong result on some specific controllers. I am not good
enough in rigging to understand what is so specific about these controllers.
Here is my code where I compare the matrices translations of a single
selection, obtained by different method. xform(ws = True) that gives me
always the correct result. And Funny enough, getAttr() without the time
argument give me the correct result as well. Why on earth just adding the
time argument make the result all wrong?
import maya.cmds as mc
import random
#Get selection
ctrl = mc.ls(sl=True)[0]
#Get a random frame
frameNr = random.randint(1,100)
#Set the current time to test xform
mc.currentTime(frameNr)
print ('Frame: %s'%mc.currentTime(q=True))
#Get the matrix with getAttr with the Time argument - bad result
getAttr_matrix_time = mc.getAttr('%s.worldMatrix[0]'%ctrl, time = frameNr)
print
(getAttr_matrix_time[12],getAttr_matrix_time[13],getAttr_matrix_time[14], '
-> getAttr(time) ')
#Get the matrix with getAttr without the time argument - good result
getAttr_matrix = mc.getAttr('%s.worldMatrix[0]'%ctrl)
print (getAttr_matrix[12],getAttr_matrix[13],getAttr_matrix[14], ' ->
getAttr() ')
#Get the matrix with xform - good result
xform_mat = mc.xform(ctrl , matrix = True, q = True, ws = True)
print (xform_mat[12],xform_mat[13],xform_mat[14], ' -> xform() ')
My bug comes on this rig free rig for example:
https://agora.community/content/bulbasaur
On the controller "C_big_vine_mid_ctrl".
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