灰阶线框匕首3D模型

竖向构图的灰阶3D线框匕首模型，主体居中垂直放置，细长对称叶片形刀身，刀身表面为三角网格拓扑，长柱形刀柄带菱形交叉网格，柄身上部有星形徽记和圆形铆钉状凸起，下段有弧形凹槽与尖端收尾，整体仅显示灰色线框和浅灰实体面，无材质贴图，白色纯色背景，平视正视图，均匀柔和光照，单色冷灰调，狭长竖幅。

A vertical grayscale 3D wireframe dagger model centered in the frame, slender symmetrical leaf-shaped blade with triangular mesh topology, long cylindrical handle with diamond crosshatch wireframe, a star emblem and small circular rivet-like protrusions on the upper handle, curved grooves and a pointed lower end, rendered only with gray wireframe lines and pale gray surfaces, no texture maps, plain white background, eye-level front view, even soft lighting, monochrome cool-gray tone, tall narrow portrait aspect ratio.