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Nomadic Designer

Create a Quick Grassy Hill in Illustrator With the Crystallize Tool

Create a Quick Grassy Hill in Illustrator with the Crystallize Tool

Illustrator offers some very powerful tools for doing damage to your designs. In this tutorial, I want to show you how to quickly create a grassy hill using the Crystallize tool.

1) Start with a new document (Cmd/Ctrl + N), and give it a name. In a fit of originality, I called mine ‘Quick Grassy Hill’. Set the dimensions to 600px wide and 400px high.

Set up Illustrator

2) Using the Pen Tool (p), sketch out a rough hill shape.

Illustrator pen tool

3) Select the Stroke in the Tools palette, then set it to none (/).

Illustrator stroke

4) With the hill shape still selected, click on the Gradients panel, then click on the default gradient swatch.

Illustrator gradients

6) Using the Gradient Tool (G), click and drag in the direction of the arrow to set the gradient angle and length to something like this. This will give it some appearance of light and depth, but if you want to make the hill look even better, you could use the Gradient Mesh Tool to create some curves on the gradientto give it a real 3D feel.

If I did that, though, it wouldn’t be a Quick Grassy Hill (maybe I’ll come back to it in another tutorial).

The illustrator gradient tool

5) With the hill still selected, go back to the gradient palette and set the colours of the gradient to R = 0, G = 120, B = 0 and R = 0, G = 69, B = 0.

Illustrator gradient settings

7) Now to make us some grass! Select the Crystallize tool, which is kept under the Liquify Tools.

Illustrator crystallize tool

8) Double click the Crystallize Tool icon to open up the tool options dialog. Here are the settings I used, but you might want to experiment for different types of grass:

Crystallize settings illustrator

If you want finer blades of grass, set the complexity and detail higher and the size lower.

9) Zoom in to the bottom left hand corner of the hill, then simply click and drag to start making grass. Do short sections, stopping to see how it’s going and if it’s not looking good simply Undo (Cmd/Ctrl + z) and try again.

Making grass with Illustrator

Tip: Keep the center of the cursor (the little plus) within the green to prevent the tool pushing the blades of grass into the hill.

10) Keep going around the top of the hill until you’ve covered it in grass. If you’ve crystallized the underneath of the corners of the hill, simply grab the Pen Tool (p) and click the tips of the spikes to delete them.

Deleting with the pen in illustrator

And there you have your grassy hill, ready to be dropped into your designs! Finished hill in Illustrator

If you enjoyed this, you might also like my tutorial on creating a 3d pipe using Illustrator’s Revolve tool.