Colorization

Now both height and color is set properly using two Perlin noise maps.

Two Perlin noise maps to generate height and colour of grass blades

Now what's next is to implement a lighting model. One way of doing so is darkening the pixels closer to the base of the grass. I'll attempt that first.

After the crucial implementation of a lighting model, I will randomize the grass blades geometry (randomized height of blade, width and inclination).