1. A method for managing a gesture based computing environment, comprising: receiving a plurality of depth images of a capture area; generating a model of a first user based on at least part of the first user being depicted in one of the depth images and based at least in part on depth values of pixels of one of the depth images; associating the first user with a primary virtual port, the primary virtual port having associated therewith a feature that a secondary virtual port does not have, a user of the computing environment being able to be bound or unbound to the primary virtual port, the user being bound to the primary virtual port being indicative of the user being able to provide input to the computing environment via the primary virtual port; identifying a second user based on at least part of the second user being depicted in one of the depth images; associating the second user with the secondary virtual port in response to identifying the second user; disassociating the first user from the primary virtual port in response to determining that the first user is no longer sufficiently depicted in a subsequent depth image based at least in part on depth values of pixels in the subsequent depth image; and updating an association of the second user from the secondary virtual port to the primary virtual port in response to dissociating the first user from the primary virtual port.