Source Media Parameters
When you select a source media item in the Media list, the Media Inspector displays
adjustable parameters that define how the image or movie clip is displayed and
composited in the project.
Motion attempts to interpret the correct parameter settings for each source media item
you add to a project. However, additional manual adjustment is sometimes necessary.
Because Motion is a nondestructive application, changes made to these parameters are
not applied to the source media files on disk. Parameter changes affect how objects are
drawn in Motion.
Creating and Managing Projects