Method for rendering shadows on a graphical display

G - Physics – 06 – T

Patent

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Details

G06T 15/60 (2006.01) G06T 17/05 (2011.01)

Patent

CA 2282637

A method for rendering a shadow cast from an object illuminated by at least one light source onto at least another object on a graphical computer display. The preferred embodiment enables the rendering of accurate and realistic shadows in real-time, consequently providing a realistic view of three-dimensional objects in two dimensions. The shadow can also provide more visual clues than are otherwise available from ambient light sources. In this way, more visual information is provided to an observer.

La présente invention concerne un procédé de rendu d'une ombre projetée, à partir d'un objet éclairé par au moins une source lumineuse, sur au moins un autre objet, sur un affichage informatique graphique. Le mode de réalisation préféré permet le rendu d'ombres réalistes et précises en temps réel et donne, en conséquence, une vue réaliste en deux dimensions, d'objets en trois dimensions. L'ombre peut également fournir plus d'indices visuels qui sont, autrement, obtenus à partir de sources lumineuses ambiantes. De cette façon, un observateur peut obtenir plus d'informations visuelles.

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