What is passthrough?

Passthrough has never been an accurate definition of art for so long. My Understanding of passthrough is to express the sensory effect that is expressed to the retina through a certain media. A painting is covered with a transparent glass. You can see it clearly. On the contrary, it is covered with a frosted glass. What you see is a very fuzzy painting applied to the image. the general impression is the delicate degree of a painting and the visual impact, that is, the eye-catching strength. For example, the fine painting of a painting and a rough painting put a piece at a Glance. You must first look at the past. attracted by the fine painting. At this time, the fine painting will bring you the feeling of being transparent. The clearer the painting, the more transparent it is.