Method of rendering an image

G - Physics – 06 – T

Patent

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Details

G06T 3/00 (2006.01) G06T 1/00 (2006.01)

Patent

CA 2173651

The present method renders scanlines of an image to an output device in a memory efficient manner. The image is defined by a number of order objects, each of which is independently stored. The procedure determines on a scanline basis the objects which influence the particular scanline and accumulates the rendering effect of the objects necessary for returning the scanline. Once a scanline is returned, the procedure is repeated. Objects are only partially rendered as required to pass on the necessary information as input for the next object. This approach maintains the independence of the objects, allows interaction of objects, allows output to high resolution output devices in a memory efficient manner, and allows each object to be reproduced at the best resolution.

La présente méthode assure le rendu économe en mémoire de lignes de balayage transmises à un dispositif de sortie. L'image est définie par un certain nombre d'objets ordonnés mémorisés indépendamment les uns des autres. La procédure détermine sur la base des lignes de balayage les objets qui influencent une ligne de balayage particulière et permet le rendu des objets en fonction des lignes de balayage. La procédure se répète pour chaque ligne de balayage. Les objets ne sont rendus que partiellement, c'est-à-dire suffisamment pour que l'objet suivant dispose de l'information nécessaire. Cette approche maintient l'indépendance des objets et permet l'interaction des objets, l'exploitation économe en mémoire de dispositifs de sortie à haute résolution et la reproduction de chaque objet avec une résolution optimale.

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