Virtual situation awareness

In running the pilot study for my experiment, one of the participants ended up rather forcefully bashing the gripper-mounted camera into an obstacle. 

The interface display consisted of a shaded point cloud representing the 3d environment around the robot arm, a virtual model of the robot arm, and a few video streams showing views from cameras on the arm and off to the side of the arm.  The virtual arm display did not include a representation for the camera and rigging to mount the camera, which things are about half the size of the total arm. 

At the time of the collision, the participant was focused mostly on the 3d virtual display and not the camera views.  As such, he thought he had plenty of space before colliding with the obstacle.  Of course one fix would be to add the camera and rigging to the virtual model that is displayed.