Optimizing graphics rendering

Three graphics rendering concepts that should be explored when aiming to enhance game performance are occlusion culling, lighting, and mesh renderers. Each of these concepts are covered in the following sections.

Occlusion culling

Cameras are a critical game object in our Unity games. They allow the player to see the game environment. Unity works diligently during gameplay to render objects within a camera's frustum. Graphics rendering can represent a tremendous performance issue. It is therefore important that we pay special attention to our camera's occlusion culling parameter. When enabled, Unity will not render objects that are occluded, or not seen by the camera. An example would...