Ya I thought about the depth issue as well. Maybe when evoked the selection box could be 3d ish allowing us to rotate the camera about adjusting all the angles before we execute the selection. Similar to when we crop a photo but more of a 3d perspective. Otherwise to start off with just a simple draw and select everything. Even just a keypress to disable the camera and allow a click and selection draw.
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OS = Ubuntu 14.04 LTS (64bit)
OS = Ubuntu 14.04 LTS (64bit)