![]() The process was invented by animator Max Fleischer back in 1915, when it involved projecting an image onto glass and then tracing over the image by hand, frame by frame. Rotoscoping is what you most often do when you need precise transparent selections and don't have green screen footage, or need to fix the footage you have. Computers have transformed this from what used to be a crude chemical process to a highly specialized art form that now includes not only editing and sound, but elaborate visual effects, animation, and color work. Post-production is everything that happens after production, where the cameras roll. There are sophisticated green screen tools available in After Effects, including the Academy Award-winning Keylight, which is included at no extra cost. Green is useful for this because it is so mathematically pure on the computer yet so distinct from common foreground shades of flesh and hair. The green areas of the shot are replaced with backgrounds that are created separately, sometimes without using a camera at all. Green screen is one common generic term for shooting live action and using color to create selections that have transparency with maximum detail in post-production. Common visual effects you can create in After Effects include green screen, rotoscoping, motion tracking, and color matching. What we call visual effects, by the way, differs from special effects in movie credits, those are the effects created live on set, like stuff blowing up, while visual effects occur only in post-production. ![]() Visual effects has a lot of overlap with motion graphics, but it's specifically oriented toward realism and live action footage. Animation and design are the core skills behind motion graphics, but it can also make use of storytelling, illustration, and visual effects. Motion graphic styles range from infographics, which are meant to convey clear and specific information via animated images, to highly conceptual work that draws you in by showing you something you've never seen before. Motion graphics is the art form in which graphics, which could be stills, video, 3D animation, type, or abstract elements you create with effects and other tools, are put into motion. Now let's go over some terms that are general to the work you do in After Effects, but not unique to the application.
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