阴影帮我们理解光从哪里来,有多少个光源和每个光源的强度。
Shadows help us understand where the light is coming from, how many light sources there are and the intensity of each.
C街道距光源的距离是A街的3倍,那么光线的昏暗程度将是A街的9倍,因为3X3 = 9,也就是说C街的光照强度只等于A街的1/9,如果这里要看清书上的字,字体就要扩大九倍。
" C " street is three times as far from the light as "A" street; hence it will be nine times darker there, for 3X3 = 9.
同时,确使你的屏幕对任何光源都保持90度角来减少光的强度。
Also, make sure that your screen is at a 90-degree Angle to any light source to cut down on glare.
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