| 摘要 |
PURPOSE:To accelerate the display, rotation, and translation of a sphere by changing the number of division of a polygon by a division part based on magnification set by a magnification setting part. CONSTITUTION:When the surface of the sphere is approximated to the polgon and the polygon is painted out and it is displayed on a display device, the number of division of the polygon on the surface of the sphere is obtained based on the magnification and reduction ratios of the sphere. Polygonal division is performed only on the visual display side of the sphere based on the number of division of the polygon. Therefore, when the number of spheres being displayed simultaneously on the display device is increased due to the increment of the reduction ratio, the number of division of the polygon of each pshere can be reduced, therefore, the number of polygons is not increased as a whole, and when the number of spheres is not increased remarkably, the number of polygons is reduced. |
