Apparatuses, methods, and computer programs are disclosed for fractional/arbitrary tile grouping. An example apparatus includes circuitry configured to receive a video presentation frame, wherein the video presentation frame represents three-dimensional data; divide the video presentation frame into a plurality of tiles, wherein one or more of the plurality of tiles may be a fractional tile, as part of a process of encoding the video presentation frame, wherein each tile represents a part of the three-dimensional data of the video presentation frame; group the tiles into one or more groups, wherein individual tiles of the video presentation frame have a capability of not belonging to any of the one or more groups; in response to fractional tiling being present, transmit a signal of fractional tiling related syntax or semantics; and provide an encoded video presentation frame to a decoder, the encoded video presentation frame comprising the grouping of the tiles.