Dynamic render algorithm selection

A method of rendering a sequence of graphical objects, where two or more different renderers are available and one of the renderers is designated as a currently-used renderer, includes the steps of receiving a current object in the sequence of graphical objects, adding the current object to a set of recently-received objects, and checking whether any one of a predetermined group of patterns of objects is present in the set, each pattern having an associated indication of the suitability of the available renderers for the pattern, the suitability being dependent on a time taken to render the pattern. The method further includes the steps of determining a suitable renderer from the available renderers using a pattern and associated indication identified in the checking step, and switching from the currently-used renderer to the suitable renderer if the suitable renderer is different from the currently-used renderer.