1. A computer-implemented apparatus including at least one processor device for representing an object as a depth image based 3-dimensional (3D) object, comprising: a node generator using the at least one processor device to generate a DepthImage node corresponding to a plane of the image (“image plane”), wherein the DepthImage node comprises: a viewpoint field in which a viewpoint from which the image plane is viewed is recorded; a fieldOfView field in which a visibility area from the viewpoint to the image plane is recorded; an orthographic field in which a projection method from the viewpoint to the image plane is recorded, wherein the projection method is one of an orthogonal projection method and a perspective projection method; nearPlane and farPlane fields which specify distances from the viewpoint to a near plane and a far plane of the visibility area, respectively, wherein the near plane and the far plane define an area used to determine depth information for the image; and a diTexture field which specifies a depth image texture identifying a texture with depth for the image, the image including a grid on projected image planes, the grid including plural cells with each cell having a center point, the diTexture field comprising a texture field in which a colored plane image containing color information for each pixel forming the image is recorded and a depth field in which the depth information for each pixel forming the image is recorded, wherein: the depth information in the depth field comprises a still image frame and specifies multiple depths of each center point in the projected image planes, and the color information in the texture field comprises a plurality of sequences of image frames, and wherein the depth image texture identifies a reference video stream including animated texture and depth information covering all potentially visible parts of a surface of the 3D object.