• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by Bablo · Feb 26, 2011 at 01:07 PM · cameratransformpositionzoom

Simple camera zoom function

Hi everyone.

I have a camera in my game which is always on the same angle and following a player.

So, if I would want the camera to zoom in or out with mouse wheel, I would change its y and z values correspondingly.

I tried to code it up(started with c# few days ago, bear with me) and came up with this:

using UnityEngine; using System.Collections;

public class CameraControls : MonoBehaviour {

public float zoomSpeed = 20;

void Update () {

   float scroll = Input.GetAxis("Mouse ScrollWheel");
   if (scroll != 0.0f)
   {
       camera.transform.position.y += scroll*zoomSpeed;
       camera.transform.position.z += scroll*zoomSpeed;
   }

} }

but that doesn't seem to be the way to change the positions, what am I doing wrong here? Thanks in advance.

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

1 Reply

· Add your reply
  • Sort: 
avatar image
0
Best Answer

Answer by Bunny83 · Feb 26, 2011 at 01:28 PM

In C# position is a property. That means by accessing position you get a copy of the Vector3.
Use could use

transform.Translate(0,scroll*zoomSpeed,scroll*zoomSpeed,Space.World);

But normally to zoom in you just change the fov (field of view)

camera.fieldOfView += scroll*zoomSpeed;

or maybe:

camera.fieldOfView *= scroll*zoomSpeed;

ps. don't use camera.transform it's slower as transform

Comment
Add comment · Show 1 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Bablo · Feb 26, 2011 at 01:31 PM 0
Share

That clears it up, thanks. I already did it with fieldofview, but I didn't like it that way and as I have a fixed camera angle started working on this one.

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

No one has followed this question yet.

Related Questions

Finding the limits of transform coordinates 1 Answer

Set Game Object Position to Sides of a Camera 1 Answer

moving a transform by 10 but it goes exra... 1 Answer

How to make Camera position Independent of its Rotation? 1 Answer

Changing camera position to shoot through scope on gun 1 Answer

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges