Nah if you see it in person you understand. No matter the surface, you can create a virtual 3d space from the perspective of the observer. https://youtu.be/deJ

Nah if you see it in person you understand. No matter the surface, you can create a virtual 3d space from the perspective of the observer. https://youtu.be/deJnHFQtbiE https://youtu.be/deJnHFQtbiE This gives you an idea but in person the illusion is stronger.