A method of generating data for two- or three-dimensional depiction of at least part of an object, comprising: generating a 3D model of the part of the object while using a 3D image (100a, 100b) of the part of the object; and providing, while using the 3D model, data describing the vertices of the part of the object within the three-dimensional room and describing the color values associated with the vertices, characterized in that the 3D model is generated while using at least a first 3D image and a second 3D image of the object from different positions, respectively, wherein the first and second 3D images at least partly overlap, and the method includes: generating a first 3D model while using the first 3D image, and a second 3D model while using the second 3D image; and combining the first and second 3D models to form a shared 3D model, the data being provided while using the shared 3D model, wherein providing the data comprises reducing the amount of data without any loss of data, said reducing including: determining the spatial distances of the vertices; and encoding the spatial distances as sequential differences while starting from a predefined starting point. wherein reducing the amount of data includes: starting with a predefined plane, e.g. a horizontal plane (X-Z plane), identifying those vertices which exhibit predetermined mutual distances, combining the points identified until a point set, e.g. a circular point set, has been found at the plane, repeating of the identifying and the combining on a next higher plane till the relevant vertices for an outer shell of the object have been found. generating a 3D model of the part of the object while using a 3D image (100a, 100b) of the part of the object; and providing, while using the 3D model, data describing the vertices of the part of the object within the three-dimensional room and describing the color values associated with the vertices, characterized in that the 3D model is generated while using at least a first 3D image and a second 3D image of the object from different positions, respectively, wherein the first and second 3D images at least partly overlap, and the method includes: generating a first 3D model while using the first 3D image, and a second 3D model while using the second 3D image; and combining the first and second 3D models to form a shared 3D model, the data being provided while using the shared 3D model, generating a first 3D model while using the first 3D image, and a second 3D model while using the second 3D image; and combining the first and second 3D models to form a shared 3D model, the data being provided while using the shared 3D model, wherein providing the data comprises reducing the amount of data without any loss of data, said reducing including: determining the spatial distances of the vertices; and encoding the spatial distances as sequential differences while starting from a predefined starting point. determining the spatial distances of the vertices; and encoding the spatial distances as sequential differences while starting from a predefined starting point. wherein reducing the amount of data includes: starting with a predefined plane, e.g. a horizontal plane (X-Z plane), identifying those vertices which exhibit predetermined mutual distances, combining the points identified until a point set, e.g. a circular point set, has been found at the plane, repeating of the identifying and the combining on a next higher plane till the relevant vertices for an outer shell of the object have been found. starting with a predefined plane, e.g. a horizontal plane (X-Z plane), identifying those vertices which exhibit predetermined mutual distances, combining the points identified until a point set, e.g. a circular point set, has been found at the plane, repeating of the identifying and the combining on a next higher plane till the relevant vertices for an outer shell of the object have been found.