This video shows the process of drawing a black and white optical illusion using geometric checker patterns and smooth ...

Add Yahoo as a preferred source to see more of our stories on Google. 3D optical illusion drawing hack We love a nice optical illusion (if you hadn't noticed), and happily the internet is full of ...

Add Yahoo as a preferred source to see more of our stories on Google. Optical illusion drawing. Optical illusions are fun to examine, but making your own brings the fascination to a new level. If that ...

This video shows the process of drawing a geometric 3D hole using precise pencil shading and perspective line techniques. The ...