When a texture map representing an uneven surface is applied to a flat polygon, the surface appears to get flattened.

当使用材质贴图在光滑的多边形上表现一个粗糙的表面时，那个表面看起来像是平坦的。

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Signs of sun damage to the skin include wrinkles, brown spots, an uneven complexion and a tough, leathery skin texture.

晒伤的迹象包括皮肤的皱纹、色斑、肤色不均以及粗糙的皮肤纹理。

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Ordinary texture mapping can simulate three-dimensional objects relatively smooth surface, it is difficult to show that the surface of ups and downs, uneven results.

普通的纹理映射只能模拟比较平滑的三维物体表面，难以显示表面高低起伏、凹凸不平的效果。

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