Q: Why is there a blue sphere and a green bar in my way when I run with a simulator configuration?

When I run my VR Juggler application with a simulator configuration (one with a display window containing a simulator viewport), there is a blue ellipsoid and a green bar blocking some of my graphics. What is that?

A: These are components of the simulator representing a virtual user's head and right hand.

When you run in simulator mode, typically there will be VR Juggler simulator displays open showing the 3D space you are simulating. These are a special type of VR Juggler display. Instead of basing its viewpoint on the head position of one of the users, the viewpoint is controlled by a separate camera that is just another positional device. The Sim Display also draws certain objects to help visualize the environment. For example, the heads of users are represented as blue spheres with gray eyes, and a wand (if present) is drawn as a green cone or bar. These are seen only in simulator displays and are there to help you if you are doing development using the simulator environment.

Refer to the section titled "Running an Application in Simulator Mode" in the Getting Started Guide for more information.

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