According to one embodiment, a method for generating a texture image of a virtual fabric may comprise the steps of: generating similarity information between basic patterns included in a region to be analyzed and a plurality of sub-regions into which the region to be analyzed is divided; generating at least one of information about the number of repetitions of the basic patterns or information about the direction of repetition of the basic patterns on the basis of the similarity information; and generating the texture image of the virtual fabric by arranging the plurality of basic patterns in a predetermined area on the basis of the basic patterns, the information about the number of repetitions, and the information about the direction of repetition.