Challenge 1: Material assignment

Write a script that assigns a material to a MeshRenderer from code.

MeshRenderer and Dynamic Material Assignment

To change the appearance of a 3D model through code, assign a new Material to the material property of the MeshRenderer component. This is frequently used at runtime when a character takes damage, gets a power-up, or changes color based on environmental conditions.

MeshRenderer renderer = GetComponent<MeshRenderer>();
renderer.material = newMaterial;

Exercise Material Change Task

Assign renderer.material = new Material("Kırmızı"); and print it with Debug.Log("Materyal: " + renderer.material.name);.

Show example solution

using System;

public class Material
{
    public string name;
    public Material(string name) { this.name = name; }
}

public class MeshRenderer
{
    public Material material;
}

public static class Debug
{
    public static void Log(object message) => Console.WriteLine(message);
}

public class Program
{
    public static void Main()
    {
        MeshRenderer renderer = new MeshRenderer();
        renderer.material = new Material("Kırmızı");
        Debug.Log("Materyal: " + renderer.material.name);
    }
}

Exercise Active Material Check

Check that the material exists with if (renderer.material != null) and print Debug.Log("Materyal aktif: " + renderer.material.name);.

Show example solution

using System;

public class Material
{
    public string name;
    public Material(string name) { this.name = name; }
}

public class MeshRenderer
{
    public Material material = new Material("Mavi");
}

public static class Debug
{
    public static void Log(object message) => Console.WriteLine(message);
}

public class Program
{
    public static void Main()
    {
        MeshRenderer renderer = new MeshRenderer();
        if (renderer.material != null)
        {
            Debug.Log("Materyal aktif: " + renderer.material.name);
        }
    }
}

Test yourself

Which property is used in code to assign a new material to a MeshRenderer component on a GameObject at runtime?
- renderer.color
- renderer.sharedMesh
- renderer.material
- renderer.transform
Show answer

renderer.material — Using the renderer.material property, the active material of the object is changed dynamically at runtime.

Assign Material

cizici.____ = altinMateryal;

Show answer

cizici.material = altinMateryal;

Material and Renderer Terminology

renderer.material

Active material assigned at runtime
MeshRenderer

Renders geometry with material in scene
Material

Resource with surface color and texture
material.color

Main tint color value of the material

Next lesson: Challenge 2: Coroutine delay

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