Apple Motion 4 User Manual
Page 19
Groups and layers can be moved and animated by using behaviors or by setting keyframes.
Filters can also be animated.
A project represents a single flow of image data built from the bottom up. In a composite
with a single group, the layers within that group are stacked above one another. Filters
and behaviors that are applied to a layer appear beneath the object in the Layers tab.
The group represents the image that results from its combined layers and their applied
behaviors, filters, and composite modes (blend modes). For more information on building
projects, see
Creating and Managing Projects
. For more information on basic compositing,
see
In a simple example, a group contains a single image with applied color correction and
blur filters (in that order). The image provides the input data to the color correction filter.
The output data of the color correction is the input data for the blur filter. The group
represents the result of that image data flow. Groups and layers are also stacked one
above the other in a project—the output of the lower layer is the input to the layer above
it in the list.
When working in 3D mode, a layer that is below another layer in the Layers tab can appear
above that layer in the Canvas if its Z position is closer to the camera. You can force the
layers to respect their order in the Layers tab by selecting the Layer Order checkbox in
the Group tab of the Inspector.
19
Chapter 1
About Motion and Motion Graphics