TinyPixelPerfect Camera

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

public class TinyPixelPerfect : MonoBehaviour
{
    private Material postprocessMaterial;
    public int Width = 32;
    public int Height = 32;

    private void Start()
    {
        postprocessMaterial = new Material(Shader.Find("Custom/TinyPixelPerfect"));
    }

    //method which is automatically called by unity after the camera is done rendering
    void OnRenderImage(RenderTexture source, RenderTexture destination)
    {
        postprocessMaterial.SetFloat("x", (float)this.Width);
        postprocessMaterial.SetFloat("y", (float)this.Height);

        //draws the pixels from the source texture to the destination texture
        Graphics.Blit(source, destination, postprocessMaterial);
    }
}