PopulateFromTexture

from pymel.core import *
#grass plane
Plane = ls("pPlane1")[0]
PlaneScale = Plane.getScale()
#scale of grass object
PlaneWidth = PlaneScale[0]
PlaneHeight = PlaneScale[2]
# get pixles from texture
CellWidth = getAttr(Plane.getShape().listConnections()[1].subdivisionsWidth)
CellHeight = getAttr(Plane.getShape().listConnections()[1].subdivisionsHeight)





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

public class MakeTexture : MonoBehaviour {

    public Color StartColor;
    public Color EndColor;
    public int TextueWidth = 16;
    public int TextureHeight = 16;
    //public Color[] StartColorList;
    private Texture2D texture;
    private Color[] mapPixels;
    private int mapPixelLength;
    private float Timer = 0;
    public int Offseter = 0;


    void LoopThroughPixles()
    {

        for (var ix = 0; ix < mapPixelLength; ix++)
        {
            for (var iy = 0; iy < mapPixelLength; iy++)
            {
                texture.SetPixel(ix, iy, EndColor);
            }
        }
        texture.Apply(false);
    }

    void Start () {
        texture = new Texture2D(TextueWidth, TextureHeight);
        texture.filterMode = 0;
        GetComponent<Renderer>().material.mainTexture = texture;
        mapPixels = texture.GetPixels();
        mapPixelLength = mapPixels.Length;
        for (var ix = 0; ix < mapPixelLength; ix++)
        {
            for (var iy = 0; iy < mapPixelLength; iy++)
            {
                texture.SetPixel(ix, iy, StartColor);
            }
        }
        texture.Apply(false);

    }

    void Update()
    {


        LoopThroughPixles();
    }
}