How to detect an object which be in FOV of certain camera ?

Question

Hey,

I'm working on stealth game, I was trying many ways to make a camera detect an object which be in FOV (field of view) of it.

But I have met many problems, the major problem is when i'm using methods of unity such as (Renderer.isVisible) all cameras of game use the method even scene camera !!!.

How to solve that ?

Note: sorry if my English language is not clear.

Answer 1

Answer by pako · Oct 26, 2018 at 06:52 AM

You can create a BoundingSphere for your Object: https://docs.unity3d.com/ScriptReference/BoundingSphere.html

... and then use it with a CullingGroup:

https://docs.unity3d.com/Manual/CullingGroupAPI.html

https://docs.unity3d.com/ScriptReference/CullingGroup.html

...which allows you to select a target camera.

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ThePurpleReaper · Oct 26, 2018 at 08:46 AM 0

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I'll check this out

pako ThePurpleReaper · Oct 26, 2018 at 09:59 AM 0

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OK, but if your object is a moving NPC you'll have to "update" the BoundingSphere. You might find this post useful:

https://answers.unity.com/questions/1278677/cullinggroup-boundingsphere-position.html

How to detect an object which be in FOV of certain camera ?

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