Method and computer program product for producing 3 dimensional model data of a garment

In a method for producing three-dimensional model data of a garment having a target garment size, intermediate model data of the garment are stored, which are associated with a base garment size and include intermediate geometry data and at least one intermediate texture map associated with the intermediate geometry data. Through semantic segmentation of the intermediate texture map a label map is generated that associates each element of the intermediate texture map to a respective one of a set of segments of the garment and associated resizing rules. Geometry data for the model data are generated by resizing the intermediate geometry data based on the label map, on the resizing rules, on a body model and on a set of scaling factors between the base garment size and the target garment size. A texture map is generated based on the intermediate texture map, on the label map, on the resizing rules and on the set of scaling factors.