def activate_pass(self, pass_name, pass_cfg, keyframe=(- 1)):
    ' enables specific pass\n        Args:\n            pass_name:      name of pass to activate [string]\n            pass_cfg:       specific parameters for the pass [dict]\n            keyframe:       current frame number; if value > -1, this should enable also the setting of a keyframe [int]\n        Returns:\n            None\n        '
    for mesh in self._mesh_obj_list:
        mesh.activate_pass(pass_name=pass_name, pass_cfg=pass_cfg, keyframe=keyframe)
enables specific pass
Args:
    pass_name:      name of pass to activate [string]
    pass_cfg:       specific parameters for the pass [dict]
    keyframe:       current frame number; if value > -1, this should enable also the setting of a keyframe [int]
Returns:
    None
def activate_pass(self, pass_name, pass_cfg, keyframe=(- 1)):
    ' enables specific pass\n        Args:\n            pass_name:      name of pass to activate [string]\n            pass_cfg:       specific parameters for the pass [dict]\n            keyframe:       current frame number; if value > -1, this should enable also the setting of a keyframe [int]\n        Returns:\n            None\n        '
    for mesh in self._mesh_obj_list:
        mesh.activate_pass(pass_name=pass_name, pass_cfg=pass_cfg, keyframe=keyframe)