Detecting Bone Hierarchy

[Atom]

Hi All,

 

I am trying to auto-configure the joints in my FBX agent rig. By default the FBX rig has no joint configuration thus it can not participiate in a H15 ragdoll state.

 

I have manually added an Agent Configure Joints node into my agent setup network. After that node I have placed a python code node. In the python node I can get a list of all the bones via buildTransformMenu but I am not sure of their hierarchy. How would I determine what bone is the parent and what bone is the child given only a list of bone names?

# Place this Python node after Agent Configure Joints node.
import crowdstoolutils

lst = crowdstoolutils.buildTransformMenu(hou.pwd())
print lst

node = hou.pwd()
target_node = node.inputs()[0]

nl = target_node.parm('num_limits').eval()
for index in range(0,(nl-1)):
    parm_name = "enable%d" % index
    target_node.parm(parm_name).set(1)

    parm_name = "beginup_range%d" % index
    target_node.parm(parm_name).set(-180)
    parm_name = "endup_range%d" % index
    target_node.parm(parm_name).set(180)
    parm_name = "beginout_range%d" % index
    target_node.parm(parm_name).set(-180)
    parm_name = "endout_range%d" % index
    target_node.parm(parm_name).set(180)

Edited October 27, 2015 by Atom

[cwhite]

There are a ton of HOM functions for agent primitives: http://www.sidefx.com/docs/houdini15.0/hom/hou/Agent#rig, and hou.AgentRig is probably what you're looking for