Reviewing the motion
In the review phase, Maya applies the motion data you have recorded to the target attributes. Your preview data is applied to all devices and axes that have Apply Take enabled (as indicated by Enable Apply Take). Animation curves that are attached to the target attributes are not affected at this time.
During the review phase, you can click Preview to view the take in a preview form; this does not change the data.You can also click Apply Take to convert the take to animation curves in the review phase.
A preview is done automatically when you enter the review phase. This lets you review the newly captured motion faster than by using Apply Take and leaves the animation curves unchanged. Preview data is not visible in the Graph Editor.
A particular motion may require three takes or more. Because it’s hard to know which take is best as you record and because creating unique names for each version of the same move may cause errors, Maya provides an easy way to number your takes.
Take numbering inserts a number between the move name and its extension (by default, .mov). This number can be incremented to form a take number for that move. The take filename is constructed by inserting the value of the Number box before the extension of the name in the Take box.
For example, if the Take box displays clock.mov and the Number box displays a value of 2, the file is saved as clock.002.mov.
Converting a take to animation curves
Under the Controls tab, click Apply Take.
When you convert the take to animation curves, the new data replaces any existing animation curves. Older data outside of the newly recorded time range still exists, but any old data within the recorded time range does not.
When the take is converted to either preview form or animation curves, all device mappings, attachment mappings, filters, and resamplers are applied to the take data.