User Guide

Table Of Contents
Animation and Video 359
Considering Frame Rate
Frame rate describes the number of image frames displayed per second (fps). The frame
rate can determine not only how big a file your animation is, but also how smooth the
motion appears.
When you save a movie as an AVI file, you can specify the rate of display. This doesn’t
necessarily mean that what you specify is what you’ll experience. Factors like frame
size, compression method, and computer speed can prevent some movies from
achieving their set rate. If your animations will be viewed on the computer only, frame
rates of 8, 10, and 12 fps are good choices. If your animations will be viewed
elsewhere, you should consider the the following frame rates:
The frame rate of film is 24 fps.
The frame rate of NTSC video is 30 fps (29.97 fps in broadcast video). NTSC is the
video standard used in the United States.
The frame rate of Phase Alternating Line (PAL) video is 25 fps.
These frame rates are sufficient to produce smooth, continuous motion with filmed or
video-recorded subjects.
Animation drawings contain far less detail than live-action images. The difference in
the level of detail allows animations to be produced at frame rates significantly lower
than those designed for live action. Because of the smoothness of color fills and
continuity between images, animations can look quite nice at rates between 10 and
15 fps.
You must consider frame rates to know how many drawings are needed to make
actions smooth, natural, and consistent throughout the project.
The computer can display frames at any reasonable rate. The Frame Stacks palette
provides control over frame display rates within Corel Painter. You can preview an
animation at a rate of 1 to 40 fps.
You can’t display different sections of a movie at different rates. What you can do is
create sections separately at different rates and then modulate them to the same rate
before joining them. This is the kind of work you’ll do in your video-editing
application.
To set the preview frame rate
On the Frame Stacks palette, adjust the Playback slider.
The frame rate is displayed to the right of the slider.