月光下，我只能分辨出物体的轮廓。
By the light of the moon I could just make out shapes and outlines.
人或物体的轮廓的复制，尤指雕塑出来的复制品。
A reproduction of the form of a person or an object, especially a sculptured likeness.
不过，技术并不是魔术，法线贴图并不会添加物体的轮廓细节。
However, this technique isn't magic — it can't add detail to the silhouette.
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