灰色高筒靴3D线框模型展示

纯白背景上展示四只灰色高筒靴的3D线框模型，分左右两组排列；靴身为圆筒形高帮，靴口敞开，内部呈暗灰色，表面覆盖细密均匀的灰色网格拓扑线，鞋面与靴筒带柔和高光；右侧两只靴底边缘可见分段齿纹，左侧两只鞋底外缘较平滑；整体为中性灰单色，均匀棚拍光照，无人物、无文字，16:9横版构图，居中产品展示视角。

Four gray tall boot 3D wireframe models arranged in two groups on a plain white background; cylindrical high shafts with open tops and dark gray interiors, surfaces covered with fine regular gray mesh topology, soft highlights on the vamp and shaft; the two boots on the right show segmented tread along the sole edge, while the two on the left have smoother sole edges; neutral gray monochrome, even studio lighting, no people, no text, 16:9 horizontal composition, centered product-display view.