About Types of Time Domain
There are three types of time domain:
• Length and rate defines the length of an animation relative to the time between frames.
• Length and frame count defines the length of an animation relative to the number of frames.
• Rate and frame count defines the number of frames in an animation relative to the time between them.
Keep the following guidelines in mind as you define an animation:
• If the length of your animation is shorter than the default length, clear the Default check box and enter a smaller value.
• To make room for more frames, increase the Length of the animation.
• To make the transition between key frames smoother, or for more detail, increase the Frame count.
• A new Start time, End time, or Frame count value will not update other fields until you click Apply.
• A new Start time does not appear on the timeline until you click Apply.
The relation between time domain variables is expressed as follows:
Frame Rate = 1/Interval
Frames Used = [Frame Rate * (End Time – Start Time)] + 1
The frame count value does not change if you increase the Start time, as the frame count is the number of frames available for the entire animation. The frame count value is used to calculate the frame rate and interval. However, when you run or play back your animation, the frames used value reflects the actual number of frames in use, as shown in the table below:
|
Start Time
|
0
|
5
|
|
End Time
|
10
|
10
|
|
Frame Count
|
101
|
101
|
|
Frames Used
|
101
|
51
|