Method and apparatus for providing cartoon sketch not fotorrealu00ecstico within a 3D video system

摘要

Invention patent: b "method and apparatus for providing cartoon sketch not fotorrealu00ecstico within a video system in 3D" d .The system of computer graphics in 3D, such as a console vu00eddeogame domestic 3D, efficient techniques to generate effects not fotorrealu00edsticos,Such as the outline of the cartoon involve the generation and display of lines of the edge margins of the object based on the contents of a memory of pixels.Some techniques use depth values (z) to determine which pixels are located at the edges of objects, and mix, selectively, the staining of edge in pexels are, then,Visualized.The edges of objects are located by comparing the values of pixels with depth values of neighbouring pixels (for example,By calculating a value of "distu00eancia" based on the absolute values of the (s) distance (s) between a depth of a pixel and the depth of neighbouring pixels).A color edge which is mixed in the color value of the pixel based on the value of the distance calculated.In one example, the distance value is used to calculate a pixel alpha value which is then used to control the amount of color edge which is mixed in the color pixels.The alpha value can be modulated by depth of pixel.Other techniques may cause portions of the object with the values of the identification stored in locations of buffer table usually used to store values of alpha.These ID values can be used to identify intersections of portions of the object for the application of a color edge.