Which method of cutting involves the shears moving together in a vertical motion to create texture?

The method of cutting that involves the shears moving together in a vertical motion to create texture is slice cutting. This technique is particularly effective for softening edges and adding movement to the hair. When the shears are moved in a vertical direction and the blade is used to slice through the hair, it allows for a more natural finish, as opposed to creating blunt lines, which can be the result of other cutting methods. Slice cutting is often used to create layers or to remove bulk without significantly shortening the overall length of the hair, allowing for a light, airy look.

In contrast, chunk cutting typically involves more aggressive snipping to create deliberate, uneven textures and can result in thicker sections being removed. Point cutting, on the other hand, is mainly used at the ends of the hair to soften the outline and involves cutting into the hair with the tips of the shears, which does not primarily focus on vertical motion. Carving is a specific technique that engages the shears in a gliding manner to create deeper texture and movement but would not be characterized primarily by the vertical motion described in the question.