A method of rendering a graphics image

G - Physics – 06 – T

Patent

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G06T 15/00 (2011.01) G06T 19/00 (2011.01)

Patent

CA 2469050

A method of rendering a graphics image in which rendering is only carried out in a region to be changed is disclosed. In a preferred form the image includes a plurality of objects and the method comprises the step of: determining if each object has changed so that the object is required to be displayed differently in a subsequent frame; determining a bounding region of each changed object in the subsequent frame; determining a bounding region of each changed object in a frame prior to the subsequent frame; and combining the bounding regions to form an aggregate region and rendering the image only within the aggregate region.

L'invention concerne un procédé de rendu d'une image graphique dans lequel le rendu ne s'effectue que dans une zone destinée à être modifiée. Dans une forme de réalisation préférée, l'image comprend plusieurs objets, et le procédé consiste à déterminer si chaque objet a été modifié, auquel cas l'objet doit être présenté différemment dans une trame subséquente. Le procédé consiste ensuite à déterminer une zone limite de chaque objet modifié dans une trame avant la trame suivante, puis à combiner les zones limites pour former une zone combinée et réaliser un rendu de l'image uniquement à l'intérieur de ladite zone combinée.

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