不必设计明显的阴影；UI会自动添加。小阴影即可形成对比。
Avoid large drop shadows; the UI might add shadows. It's OK to use small shadows for contrast.
但在面与面的交界处，由于其法线需要重新计算，这就形成了明显的阴影过渡的痕迹。
These bumps would only be apparent due tothe way lighting appears on the surface, because these modified normals areused in the lighting calculations.
艳阳高照，没有云，没有浓阴。球员穿著白色的服装，戴著黑色帽子，脸部有明显的阴影。
There was bright sunlight, not a cloud in the sky and heavy shadows - ball players wearing white uniforms, and black hats with heavy shadows over their eyes.
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