剪纸层距与层间投影

提示词

以分开的薄纸剪片形成前后层次，上层轮廓沿指定光向投到对应下层，切边、空隙与遮挡按层序保持。

Build depth from separated thin paper cutouts, letting upper contours cast shadows onto the appropriate lower sheets under the specified lighting while retaining cut edges, gaps and layer-order occlusion.