Trying to switch color of 3D text through code (c#)

Unity Engine
1

I want to make it so that when two objects collide, a 3D text object changes it’s color. I’ve tried to do this with both

textObject.GetComponent<TextMesh>().color =Color.white;

and

textObject.GetComponent<Renderer>().material.color ==Color.white

Neither of these seem to work… Does anyone know how to perform what I’m trying to do? Any and all help appreciated :slight_smile:

2 
using UnityEngine;
using System.Collections;

public class TestScript : MonoBehaviour
{

    public GameObject textObj;

    private float lastChangeTime;
    public float changeDelay;

    void Start()
    {
        lastChangeTime = Time.time;
    }

    void Update()
    { 
        if(Time.time > lastChangeTime + changeDelay)
        {
            Color newColour = new Color(Random.Range(0f, 1f),Random.Range(0f, 1f), Random.Range(0f, 1f), 1);
            Debug.Log(newColour);
            textObj.GetComponent<TextMesh>().color =  newColour;
           
            lastChangeTime = Time.time;
        }
    }

}

top one works fine… there is a caveat on the scripting page:

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