Couple of doubts regarding camera

Hi,

1. Can i have multiple cameras in one scene? Can i render them simultaneously? I'm trying to implement a rear view camera for my racing game similar to this one. http://tinypic.com/view.php?pic=241nu60&s=3

2. How do i zoom in/out my camera?

Thank you

1. Can i have multiple cameras in one scene?

>> Yes

Can i render them simultaneously?

>> No

I'm trying to implement a rear view camera for my racing game similar to this one.

>> You'll have to do 2 pass for that...

2. How do i zoom in/out my camera?

>> Change the FOV or change the position...

Can you please tell me how to do a 2 pass? Havent heard about it before

Well it means render 2 times per frame... 1 time from the back, then get the color buffer as a texture, then render from the front and apply the texture that you get from the back on your object.