Op-art Pop-art - Patterns On The Sphere - A Mind-boggling Optical Illusion!

The video from the YouTube channel Vamos ART demonstrates step-by-step how to create a three-dimensional optical illusion of a sphere with a checkered pattern on a flat sheet of paper.

Here is a detailed overview of the creation process

:

Initial Setup and Geometry: The artist starts by drawing a circle in the center of a square piece of paper using a compass [00:27]. Next, using a ruler and a marker, straight horizontal and vertical grid lines are measured and drawn a

cross the entire paper, passing through the circle [00:36]. Inside the circle, these grid lines are carefully curved outward to create the perspective of a spherical surface [01:02].

Inking and Coloring: Using a black marker, the artist

fills in alternating squares in a checkerboard pattern across the grid [01:10]. Special attention is given to the curved grid sections inside the circle to maintain the illusion of depth and curvature [01:27].

Shading and Lighting: To

enhance the 3D effect, the artist uses a brown/black drawing pencil to add shadows around the bottom edge of the sphere [04:10] and smoothly blends the shading using a cloth and blending tools [04:40]. Highlights are added near the top

of the sphere using white and lighter tones to simulate a light source reflecting off a glossy surface [04:58].

Final Presentation: The completed artwork is shown from different angles to reveal the striking mind-boggling optical illusi

on that makes the flat drawing appear as if a real sphere is resting on top of the paper [05:35].

https://www.youtube.com/watch?v=NZfj81PEn9o

Op-art Pop-art - Patterns On The Sphere - A Mind-boggling Optical Illusion!

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