Question frustum culling and update

Hey there, so apparently unity does frustum culling automatically not rendering objects that are outside the view frustum. But do those objects still trigger update etc? If so, is there some way to determine if an object is being culled or not?

 

Yes, objects still get updates even when culled. Some components have attributes where you can configure how they should behave when culled (for example, Animator.cullingMode or ParticleSystem.cullingMode).

You can query visibility via Renderer.isVisible. There are also OnBecameVisible and OnBecameInvisible callbacks which you can use to enable/disable the object in order to pause the update calls when culled.

Additionally, you can use the CullingGroup API to get culling data for bounding spheres.

 

Awesome thanks so much!