This report describes the interim progress on the studies within the scope of 3D User Interfaces and Direct Manipulation Solutions. The report is organized as separate chapters, each of which includes the related state of the art, the project, and the progress made so far.

The report starts with the direct manipulation techniques. In sections 1 and 2 several camera-based and sensor-based direct manipulation solutions are described. Section 3 describes how to define gestures using the input devices and the meanings of these gestures. In sections 4 and 5, 3D UI and rendering related solutions are presented.

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