The illusion we are looking at today is perceived dimension. I know what you all see here but now look at the image again. It is basically 2 triangles side by side. Coloring each of them with slightly different colors creates the illusion that you are actually looking at a 3 dimensional pyramid. The use of color contrast in the background and foreground not only enhances the the 3D effect but additionally creates the illusion of light and depth of field. It’s like you are looking west at sunset in Egypt, but you are really just looking at a couple cleverly situated triangles.
Enjoy! See you all tomorrow.