In fact, when people make fancy computer graphics, they actually try to do exactly what the light would do in the real world to make an image for your eyes that look like the real world.

事实上，当人们制作精美的计算机图形时，他们实际上尝试完全按照现实世界中光线的效果来为您的眼睛制作看起来像现实世界的图像。