Wall Spot allows you to "focus" a single part of a projected text. The text without the recognition of a person is not displayed. Entering the scene a spot of light moves in the space from the position of the left hand and torso of the user. The spot size is determined by the distance of the person (higher it is and smaller the cone of light will be). The opacity of the text varies depending on the noise of the scene, in a noisy ambient the opacity will decrease till the complete disappearance of the projection.