Loop subdivision surface

Okay kiddo, imagine you have a paper with a smooth surface. But you want to make it look even smoother by turning it into a bumpy 3D shape. How can you do that? With loop subdivision surface!

Here's how it works. First, you take the paper and divide each of its flat sides (also called faces) into four smaller ones. This is like cutting the paper into smaller pieces, but still keeping them connected.

Then, you move the corners of each small face away from the original paper surface. This creates bumps and curves in the paper.

Next, you connect the new corners that are created by the bumps and curves. This forms new edges on the paper that curve and flow around the new shape.

Finally, you repeat this process over and over again, each time dividing the paper into smaller and smaller pieces, and moving the corners away from the surface to create more bumps and curves. As you do this, the paper becomes smoother and more detailed.

In summary, loop subdivision surface is a way to take a flat object and turn it into a bumpy 3D shape by dividing it into smaller pieces, moving the corners away from the surface, and forming new edges around the bumps and curves.