koobas.hobune.stream
Issues with Mathf.MoveTowards
Hi, I'm having issues with Mathf.MoveTowards. I want to interpolate between 1 and 0 over time with a public float "fadeValue". But the console yields jumpy results from 1, 0, randomly increasing and decreasing till it reaches 0 eventually.
using UnityEngine; using System.Collections;
public class CloudBehaviour : MonoBehaviour {
public float cloudSpeed = 1;
public float cloudScaleMin = 1;
public float cloudScaleMax = 1;
[Range(0f, 355f)]
public float rotationThreshould;
public float fadeValue = 10;
private MeshRenderer meshrenderer;
private float cloudScale;
private float fade;
// Use this for initialization
void Start () {
meshrenderer = GetComponent<MeshRenderer>();
cloudScale = Random.Range(cloudScaleMin, cloudScaleMax);
transform.localScale += new Vector3(cloudScale, cloudScale, cloudScale);
transform.Rotate(0f, Random.Range(0f, rotationThreshould), 0f);
}
// Update is called once per frame
void Update () {
transform.position += new Vector3(cloudSpeed * Time.deltaTime, 0f, 0f);
fade = Mathf.MoveTowards(1f, 0f, fadeValue * Time.deltaTime);
meshrenderer.material.SetFloat("_AlphaLevel", fade);
Debug.Log(fade);
}
}
Lowering the fade Value worked. But, I find that really strange.
The last parameter is the allowed maxDelta towards the target value. Probably you should just use the simpler approach without using that method.
MoveTowards should be called on the current value, you keep calling it on the value 1. Try the following instead. Your script is supposed to immediately fade it out to 0 and stay there?
public class CloudBehaviour : MonoBehaviour {
public float cloudSpeed = 1;
public float cloudScaleMin = 1;
public float cloudScaleMax = 1;
[Range(0f, 355f)]
public float rotationThreshould;
public float fadeValue = 10;
private MeshRenderer meshrenderer;
private float cloudScale;
private float fade = 1f;
// Use this for initialization
void Start () {
meshrenderer = GetComponent<MeshRenderer>();
cloudScale = Random.Range(cloudScaleMin, cloudScaleMax);
transform.localScale += new Vector3(cloudScale, cloudScale, cloudScale);
transform.Rotate(0f, Random.Range(0f, rotationThreshould), 0f);
}
// Update is called once per frame
void Update () {
transform.position += new Vector3(cloudSpeed * Time.deltaTime, 0f, 0f);
fade = Mathf.MoveTowards(fade, 0f, fadeValue * Time.deltaTime);
meshrenderer.material.SetFloat("_AlphaLevel", fade);
Debug.Log(fade);
}
}
Thanks! I will try what you've mentioned. I want it to fade to zero over time and then destroy gameobject when its zero.
Okay! I tried it, but the Object fade goes to zero instantly and not over the fadeValue * Time.deltaTme mentioned.
Did you do both changes?
private float fade = 1f;
and
fade = $$anonymous$$athf.$$anonymous$$oveTowards(fade, 0f, fadeValue * Time.deltaTime);
If yes: you probably need to lower the value of fadeValue.
Yes! I made both changes. I tried with fadeValue 10, and 100. for the fade to happen over 10, and 100 secs. What ma I doing wrong? :( I will try lowering the fadeValue.
