| Motion tracking is straightforward when you have footage like the Car Gauges layer that contains distinct contrasting visual elements that are easily tracked. However, the process can get a little tedious no matter how accurate the resulting motion path is. This time, you'll use a simpler technique that capitalizes on the motion you've already tracked: 1. | Go to time 0;00, and add Saleen_Car_08.avi to the top of the Timeline's layer stack. | 2. | Go to time 5;00, and change the layer's Opacity to 50% and Scale to 60%. | 3. | Position the image so that it's over the fuel gauge to the right of the RPM gauge. | 4. | Use the Elliptical Mask tool on the Saleen_Car_08 layer to mask it to the gauge's white face. | 5. | Set the mask's Mode to Add and Feather to 50 pixels. | 6. | Set the Saleen_Car_08 layer's Parent value to the Model layer in the Timeline's Parent column. Now the Saleen_Car_08 layer will mimic the motion of the Model layer. | 7. | To fade the reflection in and out, copy the Model layer's Opacity keyframes, and then paste the keyframes on the Saleen_Car_08 layer at time 0;00. |
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