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Introduction

This is the result we will create, an opening style of classic film iris, a small circle that opens and expands to reveal a pair of owls perched on a roof. Let's get started. Hello, welcome back to the complete Adobe After Effects series from Cerdas Inovasi Digital. Mask paths can also be animated with keyframes, just like other properties. In this episode, we'll use it for an iris effect, a circle that opens from small to fill the screen. Create a composition from the owl footage.

Step 1: Small mask on the subject

Select the footage layer, then with the ellipse tool hold shift and draw a small circle right on the left owl's face. Only that small circle is visible on top of the black background.

Step 2: Keyframe Mask Path

Press M to display the mask path. At frame 1, activate the stop walk mask path. The first keyframe saves the shape of the small circle. Before frame 1, the circle remains small as a dramatic pause.

Step 3: Enlarge the mask

Move to frame 2.5. Double-click the mask line to reveal free transform points, then stretch the corners while holding shift and control until the circle is much larger than the screen. Press Enter. The second keyframe is created, and the mask expands between the two.

Step 4: Easing

Select both mask path keyframes and press F9. The circle opens slowly, quickly in the middle, then slows down. Pull the timeline far back, the iris opens to reveal the entire scene. Set the mask feather to 60 pixels for a soft edge of the circle.

Step 5: Feather and background

Create a dark cream solid below the footage as a background, so that the area outside the iris is not a dark black but has an old film tone. Rewind the timeline from the beginning.

Step 6: Preview

The small circle highlights the owl's face, Pause for a moment, then opens wide to reveal the pair of birds. The same iris can be reversed for the video closure. Done.

Done!

We have created a small mask, activated the mask path keyframe, enlarged the mask using free transform points, added a glitch and a fade effect, as well as a vintage film background. In the next episode, we will learn about track matte alpha for text-containing videos. Need a promotional video, logo animation, motion graphics for social media, or visual effects for short films? Cerdas Inovasi Digital provides motion graphics and visual effects services, as well as opens after effect courses from beginner to advanced levels. Want to master the entire series, 104 episodes from the interface to the final project? All episodes, complete with PDF step-by-step guides, source footage, and project scripts, are available for premium tutorial subscribers. Subscribe starting at Rp69.000 per month, save 28% with the 12-month package Or pay once Rp999.000 for lifetime access. Want just one class? Buy single class with lifetime access. Subscribe now at the premium page cerdasinovasidigital.com. Contact our WhatsApp or visit cerdasinovasidigital.com. Thank you for watching, see you in the next episode.

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Cerdas Inovasi Digital Team

Software developers, BIM & 3D engineers, and AI practitioners

53 video classes1,282 episodes

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Transcript

0:03Introduction

0:38Step 1: Small mask on the subject

0:52Step 2: Keyframe Mask Path

1:08Step 3: Enlarge the mask

1:29Step 4: Easing

1:46Step 5: Feather and background

2:00Step 6: Preview

2:14Done!

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Transcript

0:03Introduction

0:38Step 1: Small mask on the subject

0:52Step 2: Keyframe Mask Path

1:08Step 3: Enlarge the mask

1:29Step 4: Easing

1:46Step 5: Feather and background

2:00Step 6: Preview

2:14Done!

Ask the class material

My notes

Questions & answers

Your instructor

Introduction

Step 1: Small mask on the subject

Step 2: Keyframe Mask Path

Step 3: Enlarge the mask

Step 4: Easing

Step 5: Feather and background

Step 6: Preview

Done!

Introduction

Step 1: Small mask on the subject

Step 2: Keyframe Mask Path

Step 3: Enlarge the mask

Step 4: Easing

Step 5: Feather and background

Step 6: Preview

Done!