2D camera zoom in comparison to the height of target

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I have a 2d vehicle moving along a 2d surface, and the camera is orthographic, and follows the vehicle side on as it moves. I need the camera to zoom in and out a bit when the vehicle jumps over a ramp, so the higher it goes the further out the camera zooms, or rather changes orthographic size, and then reverts back when the vehicle lands again, with smoothing, is this possible?

cheers - monster.

Answer 1

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Answer by Berenger · Feb 14, 2012 at 04:58 PM

It depends how you're making your camera moves, but I guess it's a child of the vehicle. So, when it jumps, the camera jumps to, changing it's heights, and you want the size to change as well. This is what I would do in a script attached to the camera :

 var : relativeHeight = (transform.position.y - minHeight) / (maxHeight-minHeight);
 camera.orthographicSize = Mathf.Lerp( minSize, maxSize, relativeHeight );

If you can find the correct values for min and max, it should work.

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ratboy · Feb 14, 2012 at 07:23 PM 0

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thanks alot - works a treat, although dont have the camera as a child of the vehicle otherwise it rotates with the car too, but the script works fine, just need to tweak the values.

Answer 2

Answer by ratboy · Feb 14, 2012 at 11:12 PM

right ive worked out the body of the script, but how do I call in the 'carHeight' from the raycast on the gameobject, into the script on the camera? anybody?

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2D camera zoom in comparison to the height of target

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