你可以自制一个反光板或柔光罩，很便宜。

You can make one for cheap.

youdao

最后，我在角色周围布置了一些反光板来照亮仍然很黑的区域。

Finally, I put some white constant shaded planes around my character to fill the areas that remains too dark.

youdao

水面不是很平静，不足以反光。我在日落时用长曝拍摄了水面使其看起来比较平静。

The water wasn't quite calm enough to capture the reflections. I used a long exposure at sunset to make it look smooth.

youdao

You cannot just tell the computer to enhance that or can you clean that up and then magically use zoom in not only on the image but also on the reflection of the victim in someone's eyeball.

你不能直接要求计算机增强,这张图片或者修复它,然后期待计算机很神奇地放大图片,以及死者的眼珠的反光。

哈佛公开课 - 计算机科学课程节选