Change Texture dynamically in Unity with C#

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In this article, I will show how to change Texture dynamically using Unity with C#.

I will show you how to do this from the very beginning step by step.

Step 1: Create a 3D Object

First, create a 3D Object. To create a 3D sphere, right-click in the Hierarchy and choose “3D Object,” then select “Sphere.”

Sphere is successfully created.

Step 2: Create a Material

Create a material for the GameObject by right-clicking in the Assets window, then choose Create > Material.

Now Material is successfully created.

Step 3: Drag and Drop the material

Now, you have to drag and drop the created material to the marked place in the below image.

Step 4: Create a button

Now, create a button by right-clicking in the Hierarchy window, and select UI > Button-TextMeshPro.

Adjust your button according to your game.

Step 5: Create C# Script

Now create a C# script by right-clicking in the Assets window, and select Create > C# Script.

After creating the C# script, name it as ChangeTexture, and write down the code given below.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChangeTexture : MonoBehaviour
{
    public Renderer sphereRenderer;
    public GameObject sphere;
    [SerializeField] private Texture[] textures;
    private int randomTextureIndex;

    // Start is called before the first frame update
    void Start()
    {
        sphereRenderer = sphere.GetComponent<Renderer>();
    }

    public void ChangeSphereTexture()
    {
        randomTextureIndex = Random.Range(0, textures.Length);

        sphereRenderer.material.mainTexture = textures[randomTextureIndex];

    }
}