Step 1: Prepare your plates
Bring the two shots you’re going to be transitioning between into a new composite shot, aligning the second shot to the point we want the transition to take place.
If we were to want to swap the clips out, or perhaps have some alternate effects, it could cause some trouble. To make things easier, we’re going to create individual composite shots for each of the clips. Name one ‘Plate 1’ and the other ‘Plate 2’.
By setting up our plates like this, we can make as many alterations to the plates as needed, without affecting the transition.
Step 2: Making the mattes
We’re going to need three separate mattes for this effect so let’s focus on creating those, as they’re the foundation of the whole effect.
Go to + New Layer and create a Plane, set it to white, name it Matte Reveal, and hit OK.
We’re going to be using masks to create the transition reveal. With the layer we just created selected, double-click the Rectangle Mask tool to the left of the Viewer panel. By double-clicking the icon, you automatically mask the whole layer.
Go to Controls > Masks > Transform and head down to Path. We’re going to animate the Path property to create the iconic tear.
Switch to the Pen tool (also found to the left of the Viewer panel), shrink the mask down on the X-axis, and place a keyframe.
Jump to about 2-seconds into the shot and expand the mask once again. Before we move on, we’ll duplicate this layer, naming it Edges, and use the duplicate for our edges later.
Turn off the visibility of the Matte Reveal and Edges layers and create another white Plane layer. Name it Circle Reveal.
Ellipse Mask path animation
This is going to be a matte reveal, but this time with the Ellipse Mask. Click and hold over the Mask icon to bring up the options, and select Ellipse. Double-click to set the mask.
Go to Controls > Masks > Transform > Path, shrink the mask on the X-axis at the start, and set a keyframe. Skip to 30 frames in and open the mask up, revealing the whole screen. Dial-up the feathering for a smoother transition.
Now we have all the foundational elements of the transition in place, we can turn each layer into individual composite shots. Right-click, keep the original name and move the mask properties with your layer before jumping back into the Main Composite shot.
Step 3: Setting up the basic transition
Now it’s time to create the basic transition by connecting the Matte Reveal we’ve created to Plate 1.
First, we’ll move the transition mattes to alight with our second plate and move them under all our footage for now.
Plate 2 is the one revealing itself in this project, so we’re going to be applying the effects to that layer. Select the layer, go to the Effects Panel and search for “Set Matte”. You can also find it under Keying > Matte Enhancements.
In the Set Matte effect, change the Source Layer to our Matte Reveal layer. Then set the Source to Luminance, and make sure the Blend mode is set to Replace. If you play this back on the timeline, you’ll nowContinue reading