Set a Specific Object Scale (size) Using a Slider

I am building a character generator and I need to be able to scale the character using a GUI slider. I have no issues with using the GUI but I am having difficulty figuring out how to set a specific scale of the model using the slider. Using the transform.localscale += new vector3(scale, scale, scale); gives me an exponential scale every time the slider is moved (and it is always positive). I want to set a specific scale between 0.8 and 1.2 which will go up and down between 0.8 and 1.2 with the slider. Some help is very much appreciated.

 

Don't add it, just set the value

Code (CSharp):

1. transform.localScale = new Vector3(scale, scale, scale);

 

The problem is that as soon as the slider is moved then that value is added to the scale on top of the last frame's value. For instance if during the frame the value was 1.05 and then the next frame (I am moving the slider) the slider value is now 1.1, the 1.1 is compounded onto the scale of the object and it scales up even quicker. If I move the slider backwards, it will keep scaling up but at a slower rate. I need it to actually set the real values of the slider into the scale of the transform of the object.

 

In the code given, 'scale' would mean the slider's value. It's being assigned, instead of incremented (as was your original post's example). The code provided should work as you intend.

 

Then something else is contributing to the scale somehow. If you simply set the localScale based on the slider's value, it should not be possible for scale accumulation to happen.

 

localScale increases (or decreases) the size of a transform - not sets it. If you enter 0.2 it increases the size by 20 percent, not sets it to 20 percent. From the unity scripting:
Description
The scale of the transform relative to the parent.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
void Example()
{
// Widen the object by 0.1
transform.localScale += new Vector3(0.1F, 0, 0);
}
}

So every time the slider moves and returns a value, the localScale increases the size of the transform by that scale, not setting it to the scale of the returned value. So if the slider returns 1.1 (which is what I actually want set) the scale is actually increase again by 1.1 times. I believe I am using the localScale exactly as intended but it is not what I need. A transform.position sets a position, a localScale does not.

 

Read that example again. Notice the += operator. Don't use the += operator. Use the = operator.

 

No, when you use += you are adding onto the existing scale. Which is why you just use =.

@BlackPete beat me to it. lol

 

That did it. Thanks gents. I had tried == earlier and it gave an error. = works perfectly.

 

== is a comparision check. Does A == B checks if they are the same.
= sets the value A = B means set the Value of A equal to the value of B.
+= Means to add on and then set the value A += B is similar to A = A + B