1.3 - 定向光源(1.3 - Directional Light)

光照示例关卡概述,示例1.3:定向光源(Directional Light)

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1.3 - 定向光源(1.3 - Directional Light)

定向光源 模拟从一个无限远无限大的源头处散发的光线。这意味着此光源投射出的阴影皆为平行,因此它非常适合模拟太阳光。定向光源上唯一可见的指示器是一个3D箭头,它指向光线将传播的方向。

在本示例中,定向光源发射的光线将穿过天花板上的一个洞。由于系统计算时认为定向光源在无限远的距离之外,其位置无关紧要。仅使用它的旋转来确定光源的角度。

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