What this means is that you can create a spline or add several splines on a layer, and Mocha will then use them splines as search areas for tracking. What’s great with Mocha is that the splines you create are not the tracking data - they are, however, linked to the tracking data. Related Post Motion Tracking in After Effects: How to Use the Point Tracker It’s always a good practice to rename your layers. This controls what motion is being looked at when tracking. (The default settings usually work fine.)į. Note that this will also increase tracking time, however. You can bring the percentage up to increase accuracy. Mocha determines the best number of pixels to look for. ![]() ![]() (Go to View > Overlays > Surface to turn this on.)Į. The surface represents the 4 points of the corner pin that will be placed in After Effects. The spline serves as the search region for Mocha while it’s tracking. User drawn spline (red line) and surface (blue square). Mocha has two types of splines: X Splines and Bézier Splines.ĭ. We will need to track our clip several times, because the objects we want to fix are on different planes. Mocha is a planar tracker - this means that it tracks planes instead of points. Mocha will automatically import your clip and set up the project for you, so all you need to do is to change the file name and the save directory. Select the clip on the timeline, then go to Animation Track in Mocha AE. Turn off all the other layers except the truck-side precomp. In order to track this more efficiently, we’ll use Mocha AE by Imagineers Systems, which comes free with After Effects. This is how the composition should look.ĭoing this alone with After Effects would be a bit tricky, because the areas that we want to remove go in and out the frame. Mask them out and precompose them, as well. Repeat this process for all the other parts that you need to replace, like the patch, branding, and trash. Give it a name, then choose “Move all attributes into the new composition.” ![]() ![]() Then draw a mask on the side of the truck.Īfter creating your mask, go to Layer > Precompose. Select your clean image and press “G” to use the mask tool. Before we do any tracking, we must first isolate the parts of the image we will use. You can see I cloned out the side of the truck, the trash, the branding on the mud flaps, and the box with a patch.īring your clean image back in to After Effects and put it on top of your clip.
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