In this paper, we present a spherical display with Fish-Tank VR as a means for interacting with three- dimensional objects. We implemented the spherical display by reflecting a projected image off a hemispherical mirror, allowing for a seamless curvilinear display surface. Diffuse illumination is used for detecting touch points on the sphere. The user's head position and the position of the sphere are also tracked using a Vicon motion capture device. Users can perform multi-touch gestures to interact with 3D content on the spherical display. Our system relies on the metaphor of a snow globe. Users can walk around a display while maintaining motion parallax corrected viewpoints of the object on the display. They can interact with the 3D object using multitouch interaction techniques, allowing for rotating and scaling of the 3D model on the display.
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