I am doing a teaching video for a software company. The instructor is demonstrating how to build a website (using a drupal backend). The instructor is describing how to create an article by pasting text into a form box, and then how to format the text.
The instructor pasted the wrong text during the recording. I've fixed these errors in the past by requesting they give me a new screen capture with the proper text, and then I've essentially created an animation of that section of the lesson by overlaying an image of the proper text and then... (ack!!) keyframing an image of their cursor making the mouse movements, making sure the mouse ends up at the exact location where the error-footage ends. Did I explain that one clearly?
It's all very smooth and you'd never spot the fixed inserts. But in this project, the instructor pasted the wrong text in the form field, and then scrolled vertically to show something higher on the page. So, I need to create a matte of some sort to insert the new footage of the form field, and then have the matte/inserted footage track with the scroll.
In this instance I can't animate the mouse movements because there is a lot of highlighting and formatting. Fortunately, the size of the interface elements is exactly the same in the original and the new footage.