Top 20 Optical Illusions To Make Your Mind Play Tricks On YouBy Tammy Salt / May 7, 2019 4. The Luminance Gradient Effect architecturendesign.net Start moving your head slowly towards the image and the brightness in the middle of the picture will get brighter as you get closer to the screen. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25