camera to object distance

Hi

How to detect how for is the camera from object?

I woudl like to make the object transparent if the camera will get close to in and show it back when the camera wil be further away.

Cheers,
Lucas

 

http://unity3d.com/support/documentation/ScriptReference/Vector3.Distance.html

Lucas, just use Vector3.Distance

Here's a little example from the documentation

Code (csharp):

1.  
2. var other : Transform;
3. if (other) {
4. var dist = Vector3.Distance(other.position, transform.position);
5. print ("Distance to other: " + dist);
6. }
7.  

 

Sorry for my noob`ish question but could You better explain it to me how to combine this code with my camera/object (in this case a poly object from Maya - pCube1)?
I would be very gratful

i tried whole day to make it but no luck.
my knowledge in programming is... very poor
I am an 3d artis

cheers

 

There's a nice trick you can use here. Get the object's heading vector:-

Code (csharp):

1. var heading: Vector3 = target.position - camera.transform.position;

...and then get the dot product of this with the camera's forward vector:-

Code (csharp):

1. var distance: float = Vector3.Dot(heading, camera.transform.forward;

The advantage is that this gives you the distance inward from the plane of the "screen", and it is also a bit more efficient in a frame update.

 

excellent, accurate, wonderfull. Thanks again andeee you saved my life once again