Hi all, I need some help with Animation-related + OpenMaya API help.
I am using OpenMaya to iterate rig controllers I have in my scene, in which
I am mainly targeting at the rotational attributes.
However I got a snag if the animation data of the controller(s) comes from
an animation layer.
rig_controls = cmds.ls(selection=True)
m_sel = OpenMaya.MSelectionList()
for ctrl in rig_controls:
m_sel.add(ctrl)
nodes = []
curves = []
# For each controller
for idx in range(m_sel.length()):
mfn_dep = OpenMaya.MFnDependencyNode(m_sel.getDependNode(idx))
plug = mfn_dep.findPlug("rotate", False)
node_curves = []
is_valid = False
# Per Rotate Axis
for idx, _ in enumerate(["x", "y", "z"]):
child = plug.child(idx) #eg. <ctrl name>.rotate<x/ y/ z>
# Assumed locked channels cannot be flipped or fixed easily.
if child.isLocked:
is_valid = False
break
if OpenMayaAnim.MAnimUtil.isAnimated(child):
is_valid = True
# Connect to anim curve
connected = child.connectedTo(True, False)
if connected:
crv = OpenMayaAnim.MFnAnimCurve(connected[0].node())
# Has actual animation
if crv.isStatic: #>>> errors if the said curve comes from
animation layer
is_valid = False
break
node_curves.append(crv)
It will errors out at the `crv.isStatic` line where the error is as
follows: `# Error: (kFailure): Object does not exist`
Tried looking through the OpenMayaAnim documents but could not find much if
there is a command that deals with animation being on Animation Layers.
Is there a better way that I can go around with this in which I am trying
to gather animated rotational values using Maya API?
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