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JohnDoe777
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VFX Artist
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Houdini Engine
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Recent Forum Posts
Crowd Ragdoll with RBD Packed Objects not recognising _agent 2025年10月26日9:45
Hello,
I've got crowd I'm importing with i@crowdanimated to 1 where the agents are ragdolling and a collision geometry that is deforming in Houdini 20.5.
I need to use the RBD Packed Object node as I need to utilize s@collisionignore_agent.
However the Packed RBD doesn't seem to recognise s@collisionignore_agent when merged with the crowd object.
If I merge it in after the multi solver it does recognise s@collisionignore_agent but the collision geometry no longer deforms...
I've got crowd I'm importing with i@crowdanimated to 1 where the agents are ragdolling and a collision geometry that is deforming in Houdini 20.5.
I need to use the RBD Packed Object node as I need to utilize s@collisionignore_agent.
However the Packed RBD doesn't seem to recognise s@collisionignore_agent when merged with the crowd object.
If I merge it in after the multi solver it does recognise s@collisionignore_agent but the collision geometry no longer deforms...
python Toggle buttons visability 2025年6月30日14:04
First create a toggle parm and name it "button_toggle".
In the 2 buttons put in the "Hide When" section this
If this is a HDA:
In both button parms put this in the Callback Script(Set to Python)
Then go to the Scripts tab and add a Python Module and paste this.
If this is not a HDA or you want it to be less clean.
In both button parms put this in the Callback Script.
In the 2 buttons put in the "Hide When" section this
{ button_toggle == 0 }changing the 0 to a 1 in the second button parm. If this is a HDA:
In both button parms put this in the Callback Script(Set to Python)
hou.phm().toggle_button(kwargs)Then go to the Scripts tab and add a Python Module and paste this.
def toggle_button(kwargs): node = kwargs["node"] toggle = node.evalParm("button_toggle") node.parm("button_toggle").set(1-toggle)
If this is not a HDA or you want it to be less clean.
In both button parms put this in the Callback Script.
node = kwargs["node"]; toggle = node.evalParm("button_toggle"); node.parm("button_toggle").set(1-toggle)
python Toggle buttons visability 2025年6月29日5:47
You could use a hidden toggle parm in the "hide when" and then use a bit of python in the buttons callback to turn said toggle parm off and on.