Abstract: A method for generating a second virtual object from a first virtual object, the second virtual object being projected on a projection screen, where the first virtual object is determined for a user in a first position, and where the second virtual object is determined for a user in a second position, different from the first known position, the position of the second virtual object being determined by applying the intercept theorem. Once the second virtual object has been determined, the method further includes the step of generating image data for the second virtual object, rendering the second virtual object by projecting the image data on the projection screen.

Abstract: A calibration for an AR gaming system or method so that players equipped with AR capable devices such as handheld devices can join in an augmented reality game in an area such as a lobby of premises such as a cinema, shopping mall, museum, airport hall, hotel hall, attraction park, etc. The lobby L is equipped with digital Visual equipment and optionally Audio equipment connected to a digital signage network, In particular, the lobby L is populated with one or more display devices, such as fixed format displays, for instance LC displays, tiled LC displays, LED displays, plasma displays or projector displays, displaying either monoscopic 2D or stereoscopic 3D content. These displays are used to allow onlookers to see through a window onto the virtual world of the AR game.

Abstract: The invention relates to a tank of plastics material produced by blow-molding of a parison, incorporating a welding spout, of a shape projecting from its outer surface which has an edge configured to be welded to a corresponding edge of an attached part, the welding spout ending axially, on an inside of the tank, in a shape resulting from contact molding between the parison and a molding component, in which the welding spout ends axially on an outside of the tank in a shape resulting from contact molding between the parison and a molding component.

Abstract: A method for forming a welding spout of a plastic tank from a multilayer parison, during blowing of the parison for manufacturing the tank. The method includes, in a blowing mold including two cavities and an insert, one of the cavities delimiting a recess for forming the welding spout, the recess having a mouth opening opposite the insert: providing a push member on the insert opposite the mouth of the recess of the cavity, capable of assuming a first position set hack from the recess and a second position in which the push member occupies a portion of the mouth of the recess; positioning the push member in the first position thereof; blowing the parison to match a shape of the cavities; during creeping of the parison towards the inside of the recess, moving the push member into the second position thereof.