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Playblast are a necessity to a good animation. This tutorial will teach you how to use the Playblast to your advantage.
Set-up
Step one - Download and open the scene box-ball.mb 
Step two - As you will notice, as you try and play the animation,
unless you have a freakishly fast graphics card, it will play slower
than true 24 frames per second.
Reason You use playblast
As mentioned above the robot animation does not play
at it's true 24 frames per second. This means you can not get a true
sense of timing and animation. So we're going to use the playblast
function to view the animation at real 24 frames per second.
Step one - First we're going to need to open the playblast
options. Go to window>playblast. Click the square beside the text.
This will open up it's options. Let's explain it's attributes.
Time range; time slider or start/end - If you set it to time
slider, the animation will play fro as many frames that are in the time
slider. If you set it to start and end, you can define the start and
end frames in a playblast.
View - If this is not checked, you wil be forced to save the
playblast file. When view is checked it will open up your finished
playblast in your default image sequence software or video software.
Show ornaments - When checked, stuff like your current viewing access and compass will be hidden for the playblast.
Viewer; movie player or image sequence - When set to movie
player, the playblast wil;l generate a movie file like .avi. When set
to image sequence, the playblast will generate a sequence of files.
Display size - From window; This means the playblast will be the
same resolution of the view port. No cropping. From render settings;
Tghis ,means playblast will be the same resolution as the current
render settings in the scene. Custom; Allows you to specify in the
playblast options what resolution you want to use.
Scale - The overall resolution of the Playblast.
Frame padding - The frame padding attribute.
Remove temporary files - Always leave this checked because lengthily playblast can take up a lot of hard-drive space.
Save to file - This allows you to save the playblast file or files on your hard-drive.
For our box-balls, set the time range to time slider, the
viewer to movie player, and make sure remove temporary files is
checked. Hit playblast. It takes a bit for the playblast. When it's
finished, it will open up the default movie player. In my case, it's
the Windows movie player. Finally we can see our ball animation at true
24 frames per second.
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