Stylized Grass - Runtime color map baking

using System;
using UnityEngine;

namespace StylizedGrass
{
    //Testing runtime generation
    [ExecuteInEditMode]
    public class RuntimeColorMapTest : MonoBehaviour
    {
        public GrassColorMapRenderer colorMapRenderer;

        private void Reset()
        {
            colorMapRenderer = GetComponent<GrassColorMapRenderer>();
        }

        public void OnGUI()
        {
            if (GUILayout.Button("Render"))
            {
                if(colorMapRenderer.colorMap == null) colorMapRenderer.colorMap = ScriptableObject.CreateInstance<GrassColorMap>();

                colorMapRenderer.terrainObjects.Clear();
                colorMapRenderer.AssignActiveTerrains();
                colorMapRenderer.RecalculateBounds();

                //Use some randomization, in order to see a difference
                float r = UnityEngine.Random.Range(0.9f, 1.1f);
                colorMapRenderer.colorMap.bounds.size = Vector3.Scale(colorMapRenderer.colorMap.bounds.size, new Vector3(r, 1f, r));
                colorMapRenderer.textureDetail = UnityEngine.Random.value * 100f;

                colorMapRenderer.Render();
            }

            if (colorMapRenderer.colorMap && colorMapRenderer.colorMap.texture)
            {
                GUI.DrawTexture(new Rect(5, 32, 256, 256), colorMapRenderer.colorMap.texture, ScaleMode.ScaleToFit, false);
                GUI.DrawTexture(new Rect(256 + 15, 32, 256, 256), colorMapRenderer.colorMap.texture, ScaleMode.ScaleToFit, true);
            }
        }
    }
}