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| On 26/03/2013, at 9:52 PM, Robert Kjettrup <robert@stvmayday.dk> wrote: > Hope this makes sense, when reading it again i can see it sounds more complicated than it is :-) Yeah it's not easy to explain collapse transformations! Another way to explain it is like this. When you drag a composition into another composition - i.e. you have a pre comp - After Effects normally treats that pre comp as one layer. There is no difference between pre-composing and pre-rendering out a composition as a quicktime and re-importing it. The collapse transformations switch changes this behaviour so that After Effects no longer sees the composition as a single layer, but acts as if all of the layers in the pre-comp were now inside the main composition. Because After Effects isn't seeing the pre comp as a single layer, settings such as motion blur don't apply any more - it uses the individual motion blur settings of all the layers in the pre comp. Additionally, adjustment layers and blending modes in the pre comp will now interact with other layers in the main comp. -Chris |
