The Math Behind Sidewalk Illusions

Unlike most people, I think TED-Ed videos are really fun to watch.  I found a TED-Ed video on the mathematics involved in sidewalk illusions. The video is easy to understand and reveals when and how artists began creating three-dimensional art on two-dimensional surfaces. It also discusses perspective drawings and the use of a point of convergence, also known as a vanishing point. Check it out:

https://ed.ted.com/lessons/the-mathematics-of-sidewalk-illusions-fumiko-futamura

One Reply to “The Math Behind Sidewalk Illusions”

1. The way the video explained 3D art was helpful; the example they used was hypothetical however makes it easy to understand. They said if you look out a window at a certain angle and you see a tree, that the grid on the window would create sections of the tree. If you paint on the window standing in that exact spot where you see the tree, it would create a picture that looks 3D. However, if you move after painting the picture it would be distorted. This is how artists take advantage of perspective and dimension. You can only look at the art at an angle that makes your brain think it is 3D and once you move the picture no longer has its illusion.