Method for creating a final real-time photorealistic image of a virtual object, corresponding to a real object arranged on an original photo of a user, in a realistic orientation related to the user's position, includes: detecting the presence of an area for the object in the photo; determining the position of characteristic points of the area for the object in the photo; determining the 3D orientation of the face, the angles φ and ψ of the camera having taken the photo relative to the principal plane of the area; selecting the texture to be used for the virtual object, in accordance with the angle-of-view, and generating the view of the virtual object in 3D; creating a first layered rendering in the correct position consistent with the position of the placement area for the object in the original photo; obtaining the photorealistic rendering by adding overlays to obtain the final image.