

In this tutorial we are going to create a realistic curtain using the gradient mesh.
1. Creating the skeleton
Make a Rectangle and fill it with green. Choose the Mesh Tool and click along the edge of the rectangle. Create 3 segments close together.



2. Fill the shadows
Choose both the top and bottom points in the segments with the Direct Selection Tool. Fill the points with black. Repeat it on all the segments we want it to be in shadow.

3. Shaping the curtain
Choose the Direct Selection Tool and select the point we have to modify and move the anchor points to change it to curve lines. Move them closer or further to other points by clicking the Right/Left Arrow Keys. A realistic fold normally starts narrow at the top and end wide at the bottom. Hence, use the arrow keys to shift the points closer or further away form each other.

4. Final touchup
Add new points with the Gradient Mesh Tool to create more folds to the curtain and fill it will a slightly dark tint. Below is the final skeleton of the curtain I create.

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