What does the term "Batching" refer to in a Unity context?

In the context of Unity, "Batching" specifically refers to the technique of reducing draw calls to optimize the performance of a scene. When there are multiple objects in a scene that share the same material, Unity can combine these objects into a single draw call, thus minimizing the overhead associated with processing multiple draw calls. This is especially important in games where performance is critical, as each draw call incurs CPU overhead.

Batching helps improve frame rates by allowing more objects to be rendered in fewer calls, which can significantly enhance the performance of a game, particularly on devices with limited graphical processing power. It involves techniques such as static batching for static objects and dynamic batching for moving objects.

Other options, while related to asset management and rendering in Unity, do not capture the essence of what batching fundamentally aims to achieve in performance optimization. For example, combining assets into one is a part of asset management, and altering the rendering order or creating new materials does not directly relate to the collective reduction of draw calls that defines batching.