Change the material on an Object in a script?

Question

How do I give a gameObject a new material when I push a button or hit a trigger? I am new to Unity.

I managed the trigger but not the material change. I don't even know how to put my materials in an array to cycle through them.

To be clear I want to use two different materials I edited in the project tab and assign them to an object in my game according to a parameter. The object is a plane(not aircraft) that moves on the x-y-plane and displays a picture of a soldier holding a rifle moving on the x-y-plane, when he hits a trigger he changes his direction and should change his material or the x-value on the active material. It is for a 2D platformer like Mario. I managed to move him and let him change directions (basicly move backwards) but I want to have the picture from the other side so that the soldier is always facing in the direction he walks.

Sorry for the confusing sentence, I am not a native English speaker so bear with me.

Answer 1

Answer by novahavocyt · Mar 15, 2018 at 10:35 PM

Hi! If you still need help with this I may be a little help. Here is some code I wrote. Hope it helps you!

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class PlayerMaterialSwaper : MonoBehaviour {
    
     public Material Material1;
     //in the editor this is what you would set as the object you wan't to change
     public GameObject Object;
 
     void Start()
     {
          Object.GetComponent<MeshRenderer> ().material = Material1;
     }
 {

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Bunny83 · Mar 16, 2018 at 01:32 AM 1

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Why don't you just declare your "Object" variable as "Renderer"?

  public $$anonymous$$aterial $$anonymous$$aterial1;
  //in the editor this is what you would set as the object you wan't to change
  public Renderer Object;
 
  void Start()
  {
       Object.material = $$anonymous$$aterial1;
  }

There are more renderers besides $$anonymous$$eshRenderers. Using Renderer will allow any class that is derived from Renderer to be assigned.

paul-masri-stone · Jun 01, 2020 at 07:06 PM 0

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To be more general, Object.GetComponent<$$anonymous$$eshRenderer> could be Object.GetComponent<Renderer>

unity_AmSezFmN7VbhDQ · Nov 10, 2021 at 01:21 PM 0

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What if the Mesh renderer has 3 elements for materials?

paul-masri-stone unity_AmSezFmN7VbhDQ · Nov 10, 2021 at 02:15 PM 0

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If you know there's more than one renderer, then you can use Object.GetComponents<Renderer> and iterate through them, depending on what you want to achieve.

Answer 2

Answer by JoanMM · Jan 28, 2019 at 01:12 PM

See here: https://answers.unity.com/questions/1373364/how-to-change-object-material-via-script.html

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Change the material on an Object in a script?

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