Occlusion culling and level of detail in optimization techniques

Let's look more closely and carefully at the basic principles of occlusion culling in Unity (only Pro license) and how to use them in your projects to achieve excellent performance.

You can open the occlusion culling editor from the Unity menu as shown in the following screenshot:

The main aim of the occlusion culling mechanism is sifting and filtering off objects that are not visible in the camera area in order to improve optimization. This primarily means that the objects will not be using resources, only when necessary, with the result that of helping you create a game or app that will work much faster.

Frustum culling is different from occlusion culling because it disables the renderers that are outside the view of the camera, but does not disable the renderers that overlap other renderers; for example, if a wall hides an object, it will be invisible for the camera. Using occlusion culling, you can automatically take the...