Graphics processor and a graphics system

G - Physics – 06 – T

Patent

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G06T 15/50 (2006.01)

Patent

CA 2193425

A graphics processor comprises: a light source table holding light source data; a conversion unit for converting the light source data to be set in the light source table from a float type (single-precision floating point real number type) into an int type (integer type); an inner product calculation unit for calculating the inner products of normal directions, light source directions and sight line directions at the vertices based on the light source data; and a color calculation unit for performing light source computations based on the calculated inner products to determine the colors of the vertices.

Processeur graphique comprenant : une table de source lumineuse supportant des données de source; une unité de conversion pour convertir, d'un type flottant (type de nombre réel à virgule flottante en simple précision) à un type entier, les données de source lumineuse à positionner dans la table lumineuse; une unité de calcul de produit scalaire pour calculer les produits scalaires des directions normales, des directions des sources lumineuses et des directions de lignes de vision aux sommets sur la base des données de source lumineuse; et une unité de calcul de couleur pour l'exécution des calculs de source lumineuse sur la base des produits scalaires calculés afin de déterminer les couleurs des sommets.

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