低多边形小岛上的风车

Create a 6-frame looping 3D low-poly sprite sheet, 3 columns by 2 rows of equal 512x512 cells on a flat sky-blue background. Subject: a tiny floating low-poly island with grass, one white windmill and two small trees, seen from the same isometric camera in every cell. Only the four windmill blades rotate, by 15 degrees clockwise per cell, so that six cells complete a 90-degree repeat and frame 6 flows into frame 1. The island, trees and shadows do not move. Flat-shaded facets, soft shadow. No grid lines, no numbers, no text.

生成 6 帧循环 3D 低多边形精灵图，3 列 2 行，每格 512x512，纯天蓝背景。主体是一座漂浮的低多边形小岛，有草地、一座白色风车和两棵小树，每格都是同一个等距机位。只有四片风车扇叶转动，每格顺时针转 15 度，六格转完 90 度，第 6 帧接回第 1 帧。小岛、树和影子都不动。平面着色的棱面，柔和阴影。不要格线、数字和文字。