Accessing main camera componet

Question

I have attached a component to my main camera that I want to access from a script. T$$anonymous$$s is the code I am using:

Camera.main.GetComponent<OrbitCamera>().FreeCam();

Where OrbitCamera is the script and FreeCam() is a function in it that I want to call but I get t$$anonymous$$s error:

Null Referance Exception: Object referance not set to an instance of an Object. Please Help.

Answer 1

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Answer by black_light · Jan 02, 2012 at 11:15 AM

I just realized the error that shows on the bottom of the screen was from the previous compilation and that the code actually works(I am very new to unity and still getting used to the interface). Sorry for wasting everyone's time like t$$anonymous$$s.

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Jace · Jan 02, 2012 at 11:17 AM 0

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Oh well, at least it's sorted - good luck!

Answer 2

Answer by Jace · Jan 02, 2012 at 10:54 AM

Try

 OrbitCamera orbitCameraScript = Camera.main.GetComponent<OrbitCamera>();
 
 orbitCameraScript.FreeCam();

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black_light · Jan 02, 2012 at 11:05 AM 0

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I have tried that and I get the same error

Jace · Jan 02, 2012 at 11:16 AM 0

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Apologies, I see your code is essentially the same. In which case I have to agree with @aldonaletto's logic and check what's actually null. i.e. is the camera tagged MainCamera and is the script actually there by that name

Answer 3

Answer by aldonaletto · Jan 02, 2012 at 11:05 AM

The code is correct for C# (it should have a dot before <OrbitCamera> in JS).
Probably GetComponent can't find the script OrbitCamera, w$$anonymous$$ch produces t$$anonymous$$s error. Let's check the possibilities:
1- OrbitCamera is JS and your script is C# (or the other way around): JS and C# are compiled by different compilers, thus they can't see each other during compilation - but already compiled programs can be seen by any language, thus you can place OrbitCamera in one of the early compiled folders (Plugins, Standard Assets and Pro Standard Assets) and the code above in another Assets folder (Assets/Scripts or whatever).
2- The camera isn't tagged MainCamera (what would let Camera.main empty);
3- The script OrbitCamera is actually attached to a c$$anonymous$$ld object, or to another camera.

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black_light · Jan 02, 2012 at 11:09 AM 0

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My orbit camera is js and script is in c# and my orbitcamera is placed in plugins and camera is tagged as main camera

Accessing main camera componet

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