Which UV projection mode would you use to unwrap a single texture that wraps around a 3D object?

The best choice for unwrapping a single texture that wraps around a 3D object is the cylinder projection mode. This method is ideal for objects that have a cylindrical shape or elements, such as pipes or bottles, where the texture needs to seamlessly wrap around the surface.

When using cylindrical projection, the UV coordinates are laid out along a cylindrical surface, effectively allowing the texture to follow the contours of the object smoothly. This approach minimizes seams and distortions, ensuring that the texture appears continuous and adheres correctly as it wraps around.

While box, spherical, and planar modes serve specific purposes for different shapes, they are not as suitable for unwrapping a texture specifically designed to wrap around a cylindrical shape. Box projection is more tailored for cubic shapes, spherical projection suits round objects but with a globular approach, and planar projection is limited to flat surfaces. Thus, cylindrical projection is the most effective technique for achieving a clean, coherent texture application on cylindrical objects.