Because of bias in the painting, so a similar perspective, the illusion of painting technique of expression, and so on, have been widely applied in shallow relief work.
正因为偏向于绘画，所以类似绘画中的透视、错觉等等表现手法，都被广泛地应用在浅浮雕的作品中。
2
This optical illusion is a simple perspective trick that fools the eye.
这张图只是玩了一个观测角度的把戏。
3
Forced perspective is a technique that employs optical illusion to make an object appear farther away, closer, larger or smaller than it actually is.