Polygon data conversion device, three-dimensional simulator apparatus, and polygon data conversion method

摘要: The present invention is geared to provide a polygon data conversion device and three-dimensional simulator apparatus capable of efficiently using hardware that cannot form backface polygons. A coordinate inversion section (410) performs horizontally vertically inverts the vertex coordinates an input based on horizontal vertical flags. back-and-front determination (408) determines whether or frontface polygon, by checking sequence numbers allocated vertices. An allocation switching (420) switches this exclusive OR back flag, flag. number assignment (422) assigns original polygonal segments polygon. Data such as reversed read from memory (412) in accordance with these numbers.