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Issue Setting Camera Shutter Param in Solaris Using Python

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Mahesh Dubey Lead Fx TD
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I’m trying to set the shutter open and close parameters on a Camera LOP node in Houdini Solaris using Python. However, I’m encountering a Warning.
Invalid property control value on parameters 'shutter:open_control'
Here’s my code:
                if is_cam:
                    camera_node = previous_node.createOutputNode("camera", node_name + "_cam")
                    camera_node.parm("createprims").set(0)
                    cam_root_path = self.usd_utils.get_cam_path(camera_node)
                    camera_node.parm("primpattern").set(cam_root_path)
                    camera_node.parm("initforedit").pressButton()
                    camera_node.parm("xn__shutteropen_control_16a").set("set_or_create") #Issue is here
                    camera_node.parm("xn__shutterclose_control_o8a").set("set_or_create")
                    previous_node = camera_node
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