If the light is a Point light, it must be a Cubemap.
如果灯光是一个点光源，它必须是一个立方图(cubemap)。
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。
Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub reflector, in the same way as a curved mirror focuses visible light to one point.
大多数天线被制成碟形，用以收集和反射无线电波至亚反射器，就像曲面镜将可见光聚焦于一点一样。
If you point a blue light toward the silver ball, it would turn bluish.
如果你把蓝光指向银色的球，它就会变成略带蓝色的。
At that point there was a light knock on the door.
就在这时，有人轻轻地敲门。
A thin client is considered light from a coding point of view, but it is also light from an interface functionality standpoint as well.
从编码的角度来看瘦客户端是轻便的，而且从界面功能的角度来看也是轻便的。
The point is that a person who is prowling around at night wants to hide and they can't hide in the light, right?
这样做的好处就是能针对那些晚上游荡的家伙，他们想找地方藏躲，但不能躲在光线中，对吧？
To make sure that the cameras are accurately recording small changes in reflected light, engineers look for a bright light against a dark background to provide a reference point.
为了确保相机准确地记录来自反射光的细微变化，工程师寻找暗背景上的亮光，来提供一个参照点。
"All of a sudden, it would stop and go back like this," said Bryan Fains, using his finger to point out the direction of the blue light in the sky.
布赖恩·法因斯(Bryan Fains)说：“突然之间，它会停止下来，回到原状。”他用手指了一下天空中蓝光移动的方向。
Whether that is really the right approach with male customers is, in light of this research, a moot point.
根据这项研究，这是否真的是对待男性顾客的正确方式还是一个有争议的问题。
The Sun bent light from distant stars to a focal point where one million-fold magnifications should be possible, dwarfing the abilities of the most powerful telescopes.
太阳弯曲来自遥远星球的光线到一个焦点。那个焦点可能有一百万倍的放大能力，使最大功率的望远镜相形见绌。
If you have glasses you know that optically focus has to do with bringing the light to a focal point in the back of your eye.
如果您戴眼镜，您就会知道，从光学的层面理解，焦点的意思是，将光线汇聚到您眼底的一点上。
Their extreme measures may be a light joke, but observers point out that the growing anti-Valentine's Day sentiment also sheds light on the increasing phenomenon of "leftover" men and women.
他们的极端手段看起来是个不痛不痒的玩笑，但相关人士指出这种“反情人节”现象实为“剩男”“剩女”现象愈演愈烈的折射。
At daybreak each mirror array will turn sunward, and concentrated light will heat a Stirling engine held at the focal point, driving pistons and making electricity.
清晨，每一个镜面阵列自动转向太阳，将光通过反射集中到聚焦点加热斯特林发动机，驱动活塞，生产电力。
When a black body cools down, at some point it no longer radiates light in the visible spectrum, giving off infrared photons instead.
当黑体变冷的时候，在一定的温度以下，它就不会再发出可见光而是放出红外光子。
I wish it didn't say "exit," but it does say "exit," because that kind of weakens my point, but over many auditorium doors a red light just hangs there.
如果这些灯上没有注明出口就好了“，因为这样会削弱我要证明的观点，礼堂的门上一般会挂着一盏红灯。”
If the sun were just a tiny point of light and Earth had no atmosphere, then day and night would each be exactly 12 hours long on a spring equinox day.
如果太阳只发出很小一点的光，并且地球周围不存在大气层，那么在春分这天，昼夜等长，都是12个小时。
Moreover, the light it generates comes from what is almost a single point, which means that the bulbs can be used in projectors and televisions.
而且它发出的光几乎源于一个点，这就意味着它可以用于投影机和电视机中。
Day and night would each be exactly 12 hours long on a spring or fall equinox only if the sun were a single point of light and Earth had no atmosphere.
如果想要昼夜在春秋分日达到精确地12小时等长，除非太阳是个单点光源或者地球上没有大气层。
One can try focusing on point light sources at a similar distance to the subject of interest.
你可以尝试对焦在与中心物体距离相近的任何一个光源上。
In light of this and of the increasing incidence of syphilis in the area, expanding point-of-care rapid syphilis testing is a priority.
鉴于此情况以及该区域梅毒发病率的不断上升，扩大医疗点快速梅毒测试是当务之急。
Looking at one galaxy in the Catalog, Marianne noticed that the point of light was offset from the centre and yet was so bright that it could well be associated with a supermassive black hole.
在观察软件目录里的一个星系时，玛丽安注意到一个亮度极高的亮点正远离星系中心，很可能是一个超大质量黑洞。
一点光亮。
When the telegraph first moved information over long distances at the speed of light, we'd hit a new turning point.
当电报首次以光速长距离传递信息时，我们迎来了转折点。
Relativity says that light always moves in a straight line through empty space, and always at the same speed in a vacuum, no matter what your observation point.
它指出光在真空中走直线，且在真空中光速恒定，不论你的观测点如何。
I created from a point of stillness through Light motion.
我经由“光”之运动，从一个静止点而创造。
The cloud starts from a point about 93 billion miles from the Sun and stretches for around three light years and contains billions of comets, most of them small and hidden.
这个云团从距离太阳930亿英里外的一个点扩展到大约三光年的规模，同时包含了数以亿计的彗星，其中大部分彗星很小，而且是隐藏的。
The facts behind the BX-1 mission are still coming to light, but here is a summary of what is known at this point.
BX - 1任务背后的故事还不清楚，但以下是一些已知的事实。
Hendrix doesn't propose a specific number, but he does point out that three, 40, 000-ton light carriers could be had for the price of one supercarrier.
亨德里克斯没有提出一个具体的数字，但他指出购买一个超级航母价钱可以购买三个4万吨级的轻型航母。
It's basically the same thing as a laser beam, the more familiar light beams, often red or green, used for surgery or to point at a PowerPoint presentation.
它本质上和激光束是一样的。激光是我们更熟悉的光束，经常是红色或绿色的，用于外科手术或者作为PowerPoint幻灯片演示用的激光笔。
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