Smooth shading and texture mapping using linear gradients

G - Physics – 06 – T

Patent

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G06T 15/80 (2011.01) G06T 15/04 (2011.01)

Patent

CA 2709092

Method for shading 3D graphic models using 2D graphic tools, wherein the 3D graphic model is constructed of any number of polygons, according to which, each polygon is subdivided into triangles while mapping the spatial orientation and scaling of each triangle to a predetermined spatial orientation and scale, using a combination of rotation, scaling, and linear translation. Each mapped triangle is shaded using 2D linear or bi-linear coloring map shading tools and then remapped to its original spatial orientation and scale using, a corresponding combination of rotation, scale, and linear translation, such as an inverse combination.

Procédé de dégradé de modèles graphiques 3D à l'aide d'outils graphiques 2D, dans lequel le modèle graphique 3D est formé d'un nombre quelconque de polygones, selon lesquels chaque polygone est subdivisé en triangles tout en appliquant l'orientation spatiale et la mise à l'échelle de chaque triangle à une orientation spatiale et une échelle prédéterminées, à l'aide d'une combinaison de rotation, de mise à l'échelle et de translation linéaire. Chaque triangle mappé est dégradé à l'aide d'outils de dégradé d'application de couleur linéaire ou bilinéaire 2D, puis est remappé à son orientation et échelle d'origine à l'aide d'une combinaison correspondante de rotation, d'échelle et de translation linéaire, telle qu'une combinaison inverse.

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