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Drawing deep 3D hole illusion with pencil shading, creating impossible paper cut effect

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

Viral video shows how to draw a 3D optical illusion in under 3 minutes

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 ...