| 摘要 |
PROBLEM TO BE SOLVED: To generate an image much closer to reality and to improve efficiency in rendering processing by performing that rendering processing according to prescribed priority for each attribute of a polygon. SOLUTION: A CPU 10 generates a display list composed of polygon data or viewpoint data required for display. Inside a geometry transforming part 14 or at its output part, an attribute classifying part 16 is provided, and polygon data generated by the geometry transforming part 14 are classified corresponding to the attribute data of the polygon and stored in a polygon buffer memory 18. Namely, the polygon is classified for every attribute data and temporarily stored in the polygon buffer memory 18 and according to the suitable priority, rendering processing is simultaneously performed to the polygons of respective attributes. The polygon data from the polygon buffer memory 18 are read out according to the priority by the geometry transforming part 14 or a rendering processing part 20. |
