Why the same treatments can look different on pixel or vector layers - and how to work around it.
By Chris and Trish Meyer | March 15, 2013
Last year, we updated our After Effects Apprentice video courses. As part of adding and reorganizing material, some movies got cut. But we hate to see anything go to waste, so we’re going to repost them here for free.
After Effects follows a very specific order of calculations when it renders each layer of each frame in a composition. The trick is, that order changes depending on circumstances, such as whether their source layer is made out of pixels (such as photographs and video), vector outlines (such as text and shape layers), or is switched between the two (such as Illustrator artwork, which can be treated as pixels or as vectors). What may seem like “random” behavior is actually very repeatable and thought out; you just have to know it.