A method includes a computing system tracking motions performed by a hand of a user, determining one or more anchor locations in a three-dimensional space, and generating a virtual surface anchored in the three-dimensional space. An image of a real environment is captured using a camera worn by the user, and a pose of the camera when the image is captured is determined. The computing system determines a first viewpoint of a first eye of the user and a region in the image that, as viewed from the camera, corresponds to the virtual surface. The computing system renders an output image based on (1) the first viewpoint relative to the virtual surface and (2) the image region corresponding to the virtual surface, and displays the output image on a first display of the device, the first display being configured to be viewed by the first eye of the user.