This page explains shadows from Directional lights in detail.
此页面详细介绍了平行光阴影。
Directional lights are mostly used as a key light - sunlight or moonlight - in an outdoor game.
平行光大多数作为关键灯光-阳光或月光-在室外的游戏。
Directional lights are placed infinitely far away and affect everything in the scene, like the sun.
点光源从一个位置向四面八方发出光线，就像一盏灯。
The first three values specify the lights position, in the case of a point light, or the lights direction for directional lights.
前三个值表明了光源的位置，在点光源的，或者方向光的方向情况下。
For Directional lights Unity can use so called Cascaded shadow Maps (alternatively called "Parallel Split shadow Maps") which give very good shadow quality, especially for long viewing distances.
对于平行光，Unity可以使用级联阴影贴图(或成为平行分割阴影贴图)有很好的阴影质量，特别是远距离观看。
Do not use pixel Lights when it is not necessary — choose to have only a single (preferably directional) pixel light affecting your geometry.
当没有必要时，不要使用像素灯-选择只有一个(最好是方向光)像素灯的光线影响您的几何图形。
Base pass renders object with one per-pixel directional light and all SH lights.
基础通道用一个逐像素方向光和所有球面调和光渲染物体。
Forward rendering additive pass. This makes the shader support one full directional light, with all other lights computed per-vertex/SH. Makes shaders smaller as well.
禁用正向渲染添加通道。这会使这个着色器支持一个完整的方向光和所有逐顶点/SH计算的光照，使着色器变小。
The glasses, known as the 'Wearable Personal Navigation System', house a battery, a microcomputer, a magnetic directional sensor and a number of LED lights.
这种名为“可佩戴个人导航系统”的眼镜包含电池、微电脑、磁定向传感器和几个LED灯。
Lighting Nothing special here. I used GI to simulate the sky lights, Directional light to simulate the sun light.
这里没什么特别的灯光。我用模拟天空灯，方向灯模拟阳光。
All types of Lights - Directional, Spot and Point - support shadows.
包括灯光的所有类型，平行光，聚光灯和点光灯，支持阴影。
All types of Lights - Directional, Spot and Point - support shadows.
包括灯光的所有类型，平行光，聚光灯和点光灯，支持阴影。
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