| 摘要 |
A method of producing an image data file representative of a rendered there dimensional image and an image file processor configured to produce an image data file representative of a rendered three-dimensional image are disclosed. The image file processor (18) is arranged to create a master image data file (22) representative of a three-dimensional master image which is rendered with contrasting colours for each different object type in the image, to create a plurality of fully rendered image data files (24-1, 24-2, 24-2, 24-3 . 24-n) representative of the three-dimensional image rendered with realistic surfaces including effects, to create a mapping file (26) which records which realistic surfaces are used for different objects types in which fully rendered image data file and which records which contrasting colour is used in the master image data file for each respective object type, to process the master image data file to determine edges of object types in the three-dimensional image using the contrasting colour information in the mapping file and an edge detection process, to generate edge coordinate data for one or more respective object type, to extract selected portions of one or more of the fully rendered image files which correspond to the selected realistic surface and object type, the portion boundary of each portion being determined by the relevant edge coordinate data.
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