Abstract: A method includes displaying a plurality of computer-generated objects, and obtaining finger manipulation data from a finger-wearable device via a communication interface. In some implementations, the method includes receiving an untethered input vector that includes a plurality of untethered input indicator values. Each of the plurality of untethered input indicator values is associated with one of a plurality of untethered input modalities. In some implementations, the method includes obtaining proxy object manipulation data from a physical proxy object via the communication interface. The proxy object manipulation data corresponds to sensor data associated with one or more sensors integrated in the physical proxy object. The method includes registering an engagement event with respect to a first one of the plurality of computer-generated objects based on a combination of the finger manipulation data, the untethered input vector, and the proxy object manipulation data.

Abstract: A method includes, while displaying a computer-generated object at a first position within an environment, obtaining extremity tracking data from an extremity tracker. The first position is outside of a drop region that is viewable using the display. The method includes moving the computer-generated object from the first position to a second position within the environment based on the extremity tracking data. The method includes, in response to determining that the second position satisfies a proximity threshold with respect to the drop region, detecting an input that is associated with a spatial region of the environment. The method includes moving the computer-generated object from the second position to a third position that is within the drop region, based on determining that the spatial region satisfies a focus criterion associated with the drop region.

Abstract: Embodiments of the invention disclose a method for determining defects of a surface of a model of an object generated from a model of an original object by a simulation of a machining process. The method determines orientations and rate of change in the orientation of the surface based on normal vectors to the surface and identifies the defects of the surface based on the rate of change and a threshold. The threshold is determined based on the machining process.

Abstract: Embodiments of the invention disclose a method for determining defects of a surface of a model of an object generated from a model of an original object by a simulation of a machining process. The method determines orientations and rate of change in the orientation of the surface based on normal vectors to the surface and identifies the defects of the surface based on the rate of change and a threshold. The threshold is determined based on the machining process.