frustrum culling vs. using OnBecameVisible/OnBecameInvisible

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1

Been wondering what the difference is between frustrum culling which I believe is automatic in Unity and enabling/disabling a renderer using OnBecameVisible/OnBecameInvisible. Don’t they do the same thing and if so, why would you use OnBecameVisible/OnBecameInvisible?

3 Answers

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For instance to activate/deactivate certain scripts or turn on/off emitters. Even if something is off screen and isn’t rendered it’s still computed as a gameobject and costs differently depending on certain components.

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Thanks. I thought it might be something like that but the docs seem to indicate it was used for renderers. Would the calls be placed in Update() or FixedUpdate()? For a good many objects, is the overhead worth it I wonder?

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Thanks. I thought it might be something like that but the docs seem to indicate it was used for renderers. Would the calls be placed in Update() or FixedUpdate()? For a good many objects, is the overhead worth it I wonder?

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