Uses InGameDebugConsole's command system to dynamically change the quality of the game during runtime.

QualityCommand.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Humanizer;
using IngameDebugConsole;
using UnityEngine;
using UnityEngine.Rendering;
using VirtualRamen.Utils;

namespace VirtualRamen
{
    /// <summary>
    /// Adds a convenient way to change the quality level of the game during runtime.
    /// </summary>
    public class QualityCommand : MonoBehaviour
    {
        private Dictionary<int, string> QualityLevels;

        public void Start()
        {
            // Load the quality levels dynamically from the QualitySettings
            QualityLevels = new Dictionary<int, string>();

            for (int i = 0; i < QualitySettings.names.Length; i++)
            {
                QualityLevels[i] = QualitySettings.names[i];
            }

            // Registers the InGameDebugConsole commands
            DebugLogConsole.AddCommand<string>("quality", "Sets the quality to " + QualityLevels.Humanize("or"),
                SetQuality);
            DebugLogConsole.AddCommand("quality", "Returns the quality.", GetQuality);
        }

        /// <summary>
        /// Prints the current quality level.
        /// </summary>
        public void GetQuality()
        {
            Debug.Log("Current quality: " + QualitySettings.GetQualityLevel());
            // Prints the current render pipeline name
            Debug.Log("Current render pipeline: " + QualitySettings.renderPipeline.name);
        }

        /// <summary>
        /// Command to set the quality level to the given value.
        /// </summary>
        public void SetQuality(string quality)
        {
            foreach (KeyValuePair<int, string> qualityLevel in QualityLevels)
            {
                if (qualityLevel.Value.EqualsIgnoreCase(quality))
                {
                    // Fun fact : Changing Quality level does not automatically update the render pipeline associated with it!
                    // So we need to change the render pipeline manually

                    QualitySettings.SetQualityLevel(qualityLevel.Key);

                    GetQuality();
                    return;
                }
            }

            Debug.LogError("Could not find quality level " + quality);
        }
    }
}