In the case of GPU, we can also use interpolating texture units instead of computing some expensive expression.

在GPU情况下，我们也能使用中断处理单元替代高昂的计算处理。

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It features 1440 stream processors and 72 texture units, so it's not quite as good as the HD 5870, but the price difference is truly staggering.

它拥有1440个流处理器和72个纹理单元，所以它并不如房屋署5870好，但价格差异确实是惊人的。

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If no cascaded shadow maps were used, the entire shadow distance (still 50 units in our case) must be covered by the shadow texture uniformly. Hard shadows would look like this with no cascades.

如果不使用级联阴影，整个阴影距离(仍然是50单位)内，阴影纹理均匀的覆盖。没有级联，硬阴影看起来像这样。

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