THREE.JS: Seeing geometry when inside mesh

Question

When entering the geometry, for example a sphere mesh, it acts as if the geometry doesn't exist. The color and texture are visible on the outside. But once I zoom into the mesh, the properties are gone.

How can I make the color and texture of a sphere mesh be visible inside the mesh?

Answer 1

mesh.material.side = THREE.DoubleSide;

Or

mesh.material.side = THREE.BackSide;

three.js r.62