Example of changing per-instance data at runtime in the Built-In Render Pipeline

The following example demonstrates how to use MaterialPropertyBlock objects to set per-instance data for a group of GameObjectsThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary at runtime. It sets the _Color property from the above shaderA program that runs on the GPU. More info
See in Glossary examples to a random color.

Important: MaterialPropertyBlocks break SRP Batcher compatibility. For more information, see GPU instancing: Requirements and Compatibility.

using UnityEngine;

public class MaterialPropertyBlockExample : MonoBehaviour
{
    public GameObject[] objects;

    void Start()
    {
        MaterialPropertyBlock props = new MaterialPropertyBlock();
        MeshRenderer renderer;

        foreach (GameObject obj in objects)
        {
            float r = Random.Range(0.0f, 1.0f);
            float g = Random.Range(0.0f, 1.0f);
            float b = Random.Range(0.0f, 1.0f);
            props.SetColor("_Color", new Color(r, g, b));

            renderer = obj.GetComponent<MeshRenderer>();
            renderer.SetPropertyBlock(props);
        }
    }
}