# Lesson 6: Creating Clipping Mask Effects

Toon Boom Studio includes a Clipping Effect element, which you can use to mask out parts of an image to reveal only those portions you want to.

In the lesson scene, you will merge two extreme sports scenes (mountain bike guy and surfer guy) using a mask to reveal the second scene. While you work on this effect, we hope you learn some other things too!

There are two animation sets for this lesson:

- MaskFX_Rough
- MaskFX_Final

You will use the MaskFX_Rough animation set to follow the steps in the lesson. When you have questions that you are not sure about, you can refer to MaskFX_Final to see how we did it.

To start the Creating Clipping Mask Effects lesson:

1. Open the MaskFX_Rough animation set in the Lesson6_MaskFX folder.

2. Save the animation in a location of your choice using File > Save As. Saving this animation set to a new location will ensure that you always have the original to return to and use should you want to.

3. Select Play > Play to play back the rough animation.

Notice how the two scenes - the one of the biker and the other of the surfer - just run smack into each other? In this lesson, we’ll create a transition between these two scenes out of a clip in the shape of a wave, which will reveal the surf scene. Take a look at the final animation set, MaskFX_Final, if you want to see what you will do.