TEXTURE MAPPING METHOD AND THREE-DIMENSIONAL CG(COMPUTER GRAPHICS) DRAWING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide texture mapping capable of projecting a three-dimensional texture with an optional angle. SOLUTION: Three-dimensional CG(computer graphics) drawing device 10 with a function to map the texture on a graphic arranged in a three-dimensional space is provided with a pixel coordinate generating part 110 to hold texture data as a three-dimensional image in a texture memory 140 and to perform coordinate transformation of each vertex of a polygon arranged on the three- dimensional space to a polygon on a projection surface, a mapping line generating part 120 to generate a mapping line with the optional angle for an object pixel on the projection surface and a projection mapping part 130 to map two-dimensional textures on each object 2D(two-dimensional) surface of the three- dimensional texture which is passed by the mapping line on a pixel on the projection surface to cross the mapping line.