Where can I see Wang Jiansan's rain, snow and day and night effects? Why haven't you seen the rain?

After pressing ESC, the first option, what effect interface settings, has six kinds of image quality after clicking in, and the last one is custom. Click in, there are many picture quality settings at the bottom left. You will see an option to turn on the rain and snow effect (as it seems to be called), just check it. However, the effect of rain and snow is not all. Yangzhou is recommended for rain, and pure sunshine is recommended for snow. It won't last. Wait a while after the opening. Similarly, you can watch the movie directly by opening the movie level.