Graphics Programs Reference
In-Depth Information
Unfortunately, this concept is not available in Photoshop yet, although it is
already in other video programs such as After Efects and Premier.
Frames
Based on the lipping pages concept mentioned earlier, there is a new
drawing for the shape for each instance (like a sheet of paper), and these
instances are the frames that we move to create the animation. However,
there are two main types of frame in the animation: the keyframe and the
in-between frames.
The
keyframe
is the frame where the object properties, such as size and
position, change. For every animation, there are two keyframes: one for the
start of the animation of the object and the other for the end of the
animation of the object.
The frames between both keyframes are called the
in-between frames
; these
frames show how the movement or animation transforms from the irst
keyframe to the end keyframe, and the more in-between frames, the
smoother the animation.
Figure 2.7
The anatomy of the
animation in Photoshop and how the
in-between frames work.
Frames per Second (fps)
The
frames per second
(
fps
) number refers to the number of frames the
animation or the video displays every second to give the illusion of
animation mentioned previously. The number of frames per second can vary
quite a bit.
However, there are two main issues associated with an increase or decrease
in fps rate. The irst issue is the smoothness of the animation: the higher the
